[Note: IEEE and other institutions hold the copyrights on many papers listed here. Reproduction and distribution of these documents may be governed by those copyrights.] 

  List of Representative Publications

      Recent Refereed SCI and SCI Expanded Journal Papers

  1. Rahul Roy, S. Dharmaraja and Paola Tardelli: Convergences for a Virus-like Evolving Population driven by Mutually-exciting Hawkes Processes, Journal of Mathematical Analysis and Applications, Volume 556, Issue 2, 130251, 2026, 22 pages. (https://doi.org/10.1016/j.jmaa.2025.130251) (Q1 in SJR citation index)

  2. Utpal Sarma and S. Dharmaraja: Asymptotic Analysis of Discrete-Time Hawkes Process, Journal of Mathematical Analysis and Applications, Volume 556, Issue 1, 130197, 2026, 28 pages. (https://doi.org/10.1016/j.jmaa.2025.130197) (Q1 in SJR citation index)

  3. Shamiksha Pandey and S. Dharmaraja: Limit Theorems for Marked Dynamic Contagion Processes with Mean-Reverting Cox-Ingersoll-Ross Intensity, Statistics and Probability Letters, Volume 235, August 2026, 110729. (https://doi.org/10.1016/j.spl.2026.110729) (Q2 in SJR citation index)

  4. Shamiksha Pandey, S. Dharmaraja and Paola Tardelli: Infinite-Server Systems Driven by Finite-Dimensional Hawkes and Dynamic Contagion Arrival Processes, Methodology and Computing in Applied Probability, Vol. 28, 87 (2026), 29 pages. (https://doi.org/10.1007/s11009-026-10323-5) (Q2 in SJR citation index)

  5. Ankit Kumar, Raina Raj, S Dharmaraja and Sufal Chandra Swar: Reliability and Maintainability Analysis of Unmanned Aerial Vehicle under Varied Environmental Conditions, Reliability Engineering and System Safety, Volume 275, Part 2, November 2026, 112826 (Q1 in SJR citation index) (https://doi.org/10.1016/j.ress.2026.112826)

  6. Ishu Jain, Anupam Gautam, S. Dharmaraja and Min Xie: Semi-Markov Modelling approach for the Reliability Analysis of Multiple High Altitude Platform Station System, Reliability Engineering and System Safety, Volume 265, Part A, January 2026, 111450 (Q1 in SJR citation index) (https://doi.org/10.1016/j.ress.2025.111450)

  7. S. Dharmaraja, Divyansh Mohan Bansal, Harshvardhan Patel and Raina Raj: Reliability Analysis of Anti-Drone Laser Systems: A Probabilistic Approach, International Journal of Reliability, Quality and Safety Engineering, Volume 33, Issue 01, 2550031, 2026, 23 pages. (https://www.worldscientific.com/doi/10.1142/S0218539325500317)

  8. Raina Raj, R Sudhesh and S. Dharmaraja: Reliability Analysis and Effect of Propagation Failure on High Altitude Platforms in Wireless Communication, Wireless Personal Communications, Vol. 146, pp. 233 - 278, 2026. (https://doi.org/10.1007/s11277-025-11876-3) (Q2 in SJR citation index)

  9. Priya Mittal, Guglielmo D'Amico and S. Dharmaraja: Regime-Switching Fischer-Margrabe Options Pricing with Liquidity Risk and Stochastic Volatility, Mathematics, 2026, Vol. 14(3), 564. (https://doi.org/10.3390/math14030564) (Q1 in SJR citation index)

  10. Anupam Gautam, Nika Ivanova, Ishu Jain and S. Dharmaraja: Reliability Analysis of Multiple High Altitude Platform System Using Stochastic Modeling and Machine Learning Techniques, Wireless Personal Communications, 146, 2026, pp. 1521 – 1559. (https://doi.org/10.1007/s11277-026-11932-6) (Q2 in SJR citation index)

  11. Neha Tiwari, Swades De and S Dharmaraja: Revolutionizing 6G Networks: Deploying Free Space Optics for Aerial Base Stations – Leveraging Enhanced Bandwidth for Massive Access and Ultra-Reliable Low-Latency Services, IEEE Vehicular Technology Magazine, Volume: 21, Issue: 1, March 2026, pp. 81 - 90. (https://doi.org/10.1109/MVT.2025.3603288) (Q1 in SJR citation index)

  12. Shakti Singh and S. Dharmaraja: Fair Fee Analysis of Inflation-Linked Variable Annuities with GLWB: Exploring n-Dimensional Sub-Account Dynamic, Scandinavian Actuarial Journal, Vol. 2026, NO. 5, 544–568 2026. (https://doi.org/10.1080/03461238.2025.2551716) (Q1 in SJR citation index)

  13. Ankita Sen, S. Dharmaraja and N. Selvaraju: Functional limiting behaviour of non-stationary marked Hawkes processes under multi-scaling high intensity regime, Journal of Statistical Physics, Volume 193, article number 123, 2026. (https://doi.org/10.1007/s10955-026-03686-z) (Q2 in SJR citation index)

  14. R. Harini and S. Dharmaraja: Stochastic Modeling of Energy Consumption in Tethered High Altitude Platforms with Dynamic Sleep Control, Methodology and Computing in Applied Probability, Vol. 28, article number 103, 44 pages, 2026. (https://doi.org/10.1007/s11009-026-10335-1) (Q2 in SJR citation index)

  15. Anisha Aggarwal, Raina Raj and S Dharmaraja: Performance Analysis of the Base Station in 5G Networks by Considering Different Frequency Bands Using Stochastic Modelling, Operations Research Forum, Vol. 7, No. 110, 2026. ( https://doi.org/10.1007/s43069-026-00696-1) (Q2 in SJR citation index)

  16. S Dharmaraja, Urvashi Godara and Sufal Chandra Swar: Reliability-Availability and Maintenance Man-Hours Analysis of Uncrewed Aerial Vehicle Systems, To appear in Journal of Aerospace Engineering, 2026. (Q2 in SJR citation index)

  17. Nitu Sharma, Dharmaraja Selvamuthu, Paola Tardelli: Pricing lifelong guarantees: mixed-exponential jump-diffusion risks, To appear in OPSEARCH, 2026. (https://doi.org/10.1007/s43069-026-00696-1) (Q2 in SJR citation index)

  18. S Dharmaraja and Raghav Aggarwal: Harnessing AI and Mathematical Modeling for Oral Cancer Survival Prediction Across Stages, To appear in OPSEARCH, 2026. (https://doi.org/10.1007/s12597-026-01129-7) (Q2 in SJR citation index)

  19. Raina Raj, Priyanka Kalita and S. Dharmaraja: Reliability Analysis of Anti-Drone Systems with Image Based Detection and Jamming Techniques, To appear in OPSEARCH, 2026. (https://doi.org/10.1007/s12597-026-01102-4) (Q2 in SJR citation index)

      Refereed SCI and SCI Expanded Journal Papers

  20. Neha Tiwari, Swades De and S Dharmaraja: Analysis of Transmit Diversity Performance over Vertical FSO Channels with Altitude-Dependent Impairments, IEEE Communications Letters, Volume: 29, Issue: 12, December 2025, 2785 - 2789. (https://10.1109/LCOMM.2025.3612863) (Q1 in SJR citation index)

  21. Priyanka Kalita, Raina Raj and S. Dharmaraja: Reliability Analysis of Anti-UAV Systems: An Analytical Approach, Opsearch, Volume 62, pages 2029–2046, 2025. (https://doi.org/10.1007/s12597-024-00875-w) (Q2 in SJR citation index)

  22. Raina Raj, S. Dharmaraja, Vladimir Vishnevsky and Dmitry Kozyrev Stochastic Modeling of Dependability Attributes for a Multilayer Satellite-HAP-Terrestrial System, International Journal of Communication Systems, Volume 38, Issue 14, e70211, 19 pages, 2025. (https://doi.org/10.1002/dac.70211) (Q2 in SJR citation index)

  23. Shamiksha Pandey and S. Dharmaraja: Limit Theorems for Cox-Ingersoll-Ross Process with Externally and Self-Exciting Jumps and Application to Finance, Stochastics and Dynamics, Vol. 25, Nos. 3 & 4 (2025) 2550017 (23 pages). (Q2 in SJR citation index) (https://dx.doi.org/10.1142/S0219493725500170)

  24. Anisha Aggarwal, Priyanka Kalita and S. Dharmaraja: Stochastic Modeling of a Base Station in 5G Wireless Networks for Energy Aspects Using Advanced Sleep Mechanism, Methodology and Computing in Applied Probability, Vol. 27, Article Number 58, 31 pages, 2025. (Q2 in SJR citation index) ((https://doi.org/10.1007/s11009-025-10187-1)

  25. Priya Mittal and S. Dharmaraja: Vulnerable Power Exchange Options under Liquidity Risk, Physica A: Statistical Mechanics and its Applications, A 672, 130646, 2025. (Q2 in SJR citation index) ((https://doi.org/10.1016/j.physa.2025.130646)

  26. Mohammad Sarfraz, Guglielmo D'Amico and S. Dharmaraja: Market Regime Identification and Variable Annuity Pricing: Analysis of Regime Shifts in the Indian Stock Market, Mathematical and Computational Applications, Vol. 30 (Issue 2), 23, 2025. ((https://doi.org/10.3390/mca30020023)

  27. Shamiksha Pandey, S. Dharmaraja and Paola Tardelli: Asymptotic Results for Dynamic Contagion Processes with Different Exciting Functions and Application to Risk Models, Journal of Mathematical Analysis and Applications, Vol. 547 (Issue 2), 129392, 2025, 30 pages. (https://doi.org/10.1016/j.jmaa.2025.129392) (Q1 in SJR citation index)

  28. Arya P. S, Manikandan R, A. Krishnamoorthy and S. Dharmaraja: Optimizing Battery Maintenance and Reliability in Ground Control Station for Tethered High-Altitude Platforms, ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems Part B: Mechanical Engineering, Vol. 11 (Issue 2): 021102 (17 pages), 2025. ((https://doi.org/10.1115/1.4067545) (Q2 in SJR citation index)

  29. Anisha Aggarwal, S. Dharmaraja, Manish Gangey, Saurabh Mittal and Kushal Mahajan: Stochastic Modelling of a Base Station in 5G Wireless Networks for Energy Efficiency, International Journal of Communication Systems, Vol. 38, Issue 5 (2025), e6053. 2025. (http://doi.org/10.1002/dac.6053) (Q2 in SJR citation index)

  30. Anupam Gautam and S. Dharmaraja: Adaptive joint call admission control scheme for LTE-A in mobile communication network and its performance analysis, OPSEARCH, Volume 62, pages 307–321, 2025. (https://doi.org/10.1007/s12597-024-00774-0) (Q2 in SJR citation index)

  31. Rasmi K, S Dharmaraja, Raina Raj, Vladimir Vishnevsky and Dmitry Kozyrev: Reliability Analysis of a tHAP Mission with Sequential Phases, Reliability: Theory & Applications, Vol. 89 (Issue 4) (2025), pp. 69-81. (https://doi.org/10.24412/1932-2321-2025-489-69-81)

  32. S. Dharmaraja Utkarsh Dubey, Raina Raj and Priyanka Kalita: Probabilistic Analysis of Thermal Laser Weapon Subsystem in Anti-Drone Systems, Reliability: Theory & Applications, Vol. 89 (Issue 4) (2025), pp. 1213-1228. (https://doi.org/10.24412/1932-2321-2025-489-1213-1228)

  33. Priya Mittal and S. Dharmaraja: Options Pricing with Markov Regime Switching Heston Volatility Hull-White Interest Rates and Stochastic Intensity, Probability in the Engineering and Informational Sciences, Volume 39, Issue 2, pages 243–259, 2025. (https://doi.org/10.1017/S0269964824000202) (Q2 in SJR citation index)

  34. Puneet Pasricha, S. Dharmaraja and Paola Tardelli: Structural Credit Risk Models with Stochastic Default Barriers and Jump Clustering using Hawkes Jump-diffusion Processes, OPSEARCH, Vol. 62, pages 1061–1081, 2025. (https://doi.org/10.1007/s12597-024-00830-9) (Q2 in SJR citation index)

  35. Guglielmo D'Amico, Raina Raj and S. Dharmaraja: Reliability Analysis of a K-out-of-N System with Random Rate of Repair, Probability in the Engineering and Informational Sciences, Vol. 39, Issue 3, pages 431–460, 2025. (https://doi.org/10.1017/S0269964824000275) (Q2 in SJR citation index)

  36. Mohammad Sarfraz, Viswanathan Arunachalam and S. Dharmaraja: Pricing annuity guarantees under a regime-switching local volatility model, Computational Economics, Volume 66, pages 1603–1624, (2025). (https://doi.org/10.1007/s10614-024-10764-5) (Q2 in SJR citation index)

  37. S. Dharmaraja, Harshita Badiyasar, Smrati Tripathi, Priyanka Kalita and Raina Raj: Reliability Analysis of an Anti-Drone System by Considering Random Environmental Factors, Reliability: Theory & Applications, Vol. 79 (Issue 3) (2024), pp. 186-205. (https://doi.org/10.24412/1932-2321-2024-379-186-205)

  38. Neha Tiwari, Swades De and Dharmaraja Selvamuthu: Concatenated Vertical Channel Modeling and Performance Analysis for HAP-Based Optical Networks, IEEE Photonics Journal, Vol. 16, No. 5, 7303114, 2024. (https://doi.org/10.1109/JPHOT.2024.3434471) (Q2 in SJR citation index)

  39. A. Mohammed shapique, R. Sudhesh and S. Dharmaraja: Transient analysis of a modified differentiated vacation queueing system for energy-saving in WiMAX, Methodology and Computing in Applied Probability, Volume 26, article number 23, 33 pages, 2024. (https://doi.org/10.1007/s11009-024-10094-x) (Q2 in SJR citation index)

  40. Utpal Sarma and S. Dharmaraja: Study of discrete-time Hawkes process and its compensator, Statistics and Probability Letters, 214 (2024) 110192. (https://doi.org/10.1016/j.spl.2024.110192) (Q2 in SJR citation index)

  41. Guglielmo D'Amico, Shakti Singh and S. Dharmaraja: Optimal investment-disinvestment choices in health-dependent variable annuity, Insurance: Mathematics and Economics, Vol. 117, pp. 1-15, 2024. (https://doi.org/10.1016/j.insmatheco.2024.03.006) (Q1 in SJR citation index)

  42. Anisha Aggarwal and S. Dharmaraja: A Energy Analysis using Semi-Markov Modelling for the Base Station in 5G Networks, International Journal of Communication Systems, Vol. 37, Issue 4 (2024), e5678. (https://doi.org/10.1002/dac.5678) (Q2 in SJR citation index)

  43. Vidyottama Jain, Raina Raj, and S. Dharmaraja: Performability analysis of a MMAP[2]/PH[2]/S model with PH retrial times, Communications in Statistics – Theory and Methods, Vol. 53, Issue 8 (2024), pp. 2868-2887. (https://doi.org/10.1080/03610926.2022.2150053)

  44. Nikita Mittal, Vidyottama Jain and S. Dharmaraja: Power Efficient Stochastic Modeling for NB-IoT Devices in 5G Networks, Transactions on Emerging Telecommunications Technologies, Vol. 34 (2023), e4825. (https://doi.org/10.1002/ett.4825) (Q2 in SJR citation index)

  45. Guglielmo D'Amico, Shakti Singh and S. Dharmaraja: Analysis of fair fee in guaranteed lifelong withdrawal and Markovian health benefits , Annals of Finance, Vol. 19 (2023), pp. 383 - 400. (https://doi.org/10.1007/s10436-022-00422-x) (Q2 in SJR citation index)

  46. Raina Raj and S. Dharmaraja: Stochastic Modelling of Multi-Layer HAP-LEO Systems in 6G for Energy Saving: An Analytical Approach, Computer Communications, Vol. 210 (2023), pp. 23 - 34. (https://doi.org/10.1016/j.comcom.2023.07.037) (Q1 in SJR citation index)

  47. Shakti Singh, Viswanathan Arunachalam and S. Dharmaraja: Time series model for GLWB with surrender benefit and non-constant rate of interest : dynamic withdrawal approach, Applied Stochastic Models in Business and Industry, Vol. 39 (2023), pp. 408 - 425. (https://doi.org/10.1002/asmb.2751) (Q2 in SJR citation index)

  48. Vidyottama Jain, Nikita Garg and S. Dharmaraja: Stochastic Modeling for Bandwidth Part Switching based DRX Mechanism in 5G NR Networks, Telecommunication Systems, Vol. 83 (2023), pp. 159 - 176. (https://doi.org/10.1007/s11235-023-01007-3) (Q2 in SJR citation index)

  49. Priyanka Kalita and S. Dharmaraja: Stochastic Modeling of Sleeping Strategy in 5G Base Station for Energy Efficiency, Telecommunication Systems, Vol. 83 (2023), pp. 115 - 133. (https://doi.org/10.1007/s11235-023-01001-9) (Q2 in SJR citation index)

  50. Priyanka Kalita and S. Dharmaraja: Stochastic Modelling for Energy Efficiency in Modified Discontinuous Reception (MD-DRX) For LTE-5G Networks, International Journal of Communication Systems, Vol. 36 (Issue 6), (2023) e5434, 33 pages. (https://doi.org/10.1002/dac.5434) (Q2 in SJR citation index)

  51. Deena Merit C K, Haridass M, S. Dharmaraja and Priyanka Kalita: Energy Efficiency in a Base Station of 5G Cellular Networks using M/G/1 Queue with Multiple Sleeps and N-Policy, Methodology and Computing in Applied Probability, Vol. 25 (Issue 2), (2023) Article 48, 28 pages. (https://doi.org/10.1007/s11009-023-10026-1) (Q2 in SJR citation index)

  52. S. Dharmaraja, Adwaith H Sivam, Raina Raj and Vladimir Vishnevsky: Study of reliability of the on-tether subsystem of a tethered high-altitude unmanned telecommunication platform, Reliability: Theory & Applications, Vol. 72 (Issue 1) (2023), pp. 172-178. (https://doi.org/10.24412/1932-2321-2023-172-172-178)

  53. S. Dharmaraja, Shamiksha Pandey and Paola Tardelli: Limit Theorems for an Extended Inverse Hawkes Process with General Exciting Functions, Statistics and Probability Letters, 197 (2023) 109817. (https://doi.org/10.1016/j.spl.2023.109817) (Q2 in SJR citation index)

  54. K. Ravi Kumar, Kavya Dashora, Shantanu Kumar, S. Dharmaraja, S. Sanyal, Kaustav Aditya, Raju Kumar: A Review of Drying Technology in Tea Sector of Industrial, Non-Conventional and Renewable Energy based Drying Systems, Applied Thermal Engineering, 224 (2023) 120118. (https://doi.org/10.1016/j.applthermaleng.2023.120118) (Q1 in SJR citation index)

  55. Deepa V, Haridass M, S. Dharmaraja and Priyanka Kalita: Analysis of energy eciency of small cell Base Station in 4G/5G networks, Telecommunication Systems, 82 (2023) pp. 381 - 401. (https://doi.org/10.1007/s11235-022-00987-y) (Q2 in SJR citation index)

  56. Anupam and S. Dharmaraja: Reliability and Survivability Analysis of LTE-A Networks: An Analytical Approach, Opsearch, 60 (2023) pp. 370 - 392. (https://doi.org/10.1007/s12597-022-00607-y) (Q2 in SJR citation index)

  57. Puneet Pasricha, S. Dharmaraja and N Selvaraju: A contagion process with self-exciting jumps in credit risk applications, Stochastics: An International Journal Of Probability And Stochastic Processes, 95 (2023) pp. 75 - 98. (https://doi.org/10.1080/17442508.2022.2041641) (Q2 in SJR citation index)

  58. S. Dharmaraja Deepak Khichar, Priyanka Kalita and Vidyottama Jain: Estimation of Mortality Rate of COVID-19 in India using SEIRD Model, Opsearch, 60 (2023) pp. 539 - 553. (https://doi.org/10.1007/s12597-021-00557-x) (Q2 in SJR citation index)

  59. Vidyottama Jain, Raina Raj, and S. Dharmaraja: Numerical Optimization of Loss System with Retrial Phenomenon in Cellular Networks, International Journal of Operational Research, 46(2) (2023), pp. 210 - 226. (https://doi.org/10.1504/IJOR.2020.10032709)

  60. S. Dharmaraja and Shruti Kapoor: On the Time_dependent Solution of Fluid Models Driven by an M/M/1 queue using a Probabilistic Approach, International Journal of Operational Research, 46(1) (2023), pp. 65 - 72. (https://doi.org/10.1504/IJOR.2020.10053020)

  61. Nitu Sharma, S. Dharmaraja and N Selvaraju: Variable annuities valuation under a mixed fractional Brownian motion environment with jumps considering mortality risk, Applied Stochastic Models in Business and Industry, 38(6) (2022), pp. 1019–1038. (https://doi.org/10.1002/asmb.2699) (Q2 in SJR citation index)

  62. S. Dharmaraja and Paola Tardelli: Infinite-server System with Hawkes Arrivals and Hawkes Services, Queueing Systems, 101 (2022), pp. 329 - 351. (https://doi.org/10.1007/s11134-022-09813-3) (Q2 in SJR citation index)

  63. R.Rajasudha, R.Arumuganathan and S. Dharmaraja: Performance Analysis of Discrete-time GeoX /G/1 Retrial Queue with Various Vacation Policies and Impatient Customers, RAIRO - Operations Research, 56 (2022) pp. 1089–1117. (https://doi.org/10.1051/ro/2022042) (Q2 in SJR citation index)

  64. S. Dharmaraja, Anisha Aggarwal and R. Sudhesh:Analysis of Energy Saving in User Equipment in LTE-A using Stochastic Modelling, Telecommunication Systems, 80 (2022) pp. 123 - 140. (https://doi.org/10.1007/s11235-022-00890-6) (Q2 in SJR citation index)

  65. R. Sudhesh, A. Mohammed shapique and S. Dharmaraja: Analysis of a multiple M/M/1/DV queueing system with a dual-threshold policy, vacation interruption and a waiting server, Bulletin of the Iranian Mathematical Society, 48 (2022) pp. 3561–3591. (https://doi.org/10.1007/s41980-022-00709-9) (Q2 in SJR citation index)

  66. R. Sudhesh, A. Mohammed shapique and S. Dharmaraja: Analysis of a dual-stage vacation queueing system with disaster and repairable server, Methodology and Computing in Applied Probability, 24 (2022) pp. 2485–2508. (https://doi.org/10.1007/s11009-022-09926-5) (Q2 in SJR citation index)

  67. Puneet Pasricha, S. Dharmaraja and Paola Tardelli: Hedging and Utility Valuation of a Defaultable Claim Driven by Hawkes Processes, Applied Stochastic Models in Business and Industry, 38 (2) (2022) pp. 334-352. (http://doi.org/10.1002/asmb.2663) (Q2 in SJR citation index)

  68. Nitu Sharma, S. Dharmaraja and Viswanathan Arunachalam: A Time Series Framework for Pricing Guaranteed Lifelong Withdrawal Benefit, Computational Economics, 58 (2021) pp. 1225–1261. (https://doi.org/10.1007/s10614-020-09999-9) (Q2 in SJR citation index)

  69. K. Ravi Kumar, Kavya Dashora, Naveen Krishnan, S. Sanyal, Hukum Chandra, S. Dharmaraja, Vandita Kumari: Feasibility Assessment of Renewable Energy Resources for Tea Plantation and Industry in India - A Review, Renewable & Sustainable Energy Reviews (RSER), 145, July 2021, 111083. (https://doi.org/10.1016/j.rser.2021.111083) (Q1 in SJR citation index)

  70. Vandita Kumari, Hukum Chandra, Kaustav Aditya, K Ravi Kumar, Kavya Dashora, Naveen Krishnan, S Sanyal, S. Dharmaraja and Shantanu Kumar: Feasibility study on renewable energy system in tea (Camellia sinensis) estates of North-East India, Indian Journal of Agricultural Sciences, 91 (11) (2021) pp. 1631-1635.

  71. S. Dharmaraja and Puneet Pasricha: A Markov Regenerative Process with Recurrence Time and its Application, Financial Innovation 7, Article number: 37 (2021) (https://doi.org/10.1186/s40854-021-00255-z) (Q1 in SJR citation index)

  72. Nitu Sharma, Puneet Pasricha S. Dharmaraja: Valuation Of Equity-Indexed Annuities Under Correlated Jump-Diffusion Processes, Journal of Computational and Applied Mathematics, 395, October 2021, 113575. (https://doi.org/10.1016/j.cam.2021.113575) (Q2 in SJR citation index)

  73. Gautam Choudhaury, Priyanka Kalita and S. Dharmaraja: Analysis of a model of batch arrival single server queue with random vacation policy, Communications in Statistics – Theory and Methods, 50(22) (2021) pp. 5314–5357. (https://doi.org/10.1080/03610926.2020.1728329)

  74. Guglielmo D’Amico, Raimondo Manca, Filippo Petroni and S. Dharmaraja: On the computation of some interval reliability indicators for semi-Markov systems, Mathematics, 9(5) (2021) 575, 23 pages. (https://doi.org/10.3390/math9050575) (Q2 in SJR citation index)

  75. S. Dharmaraja, Srijan Narang and Vidyottama Jain: A Mathematical Model for Supply Chain Management of Blood Banks in India, Opsearch, 57 (2020) pp. 190–201. (MR4104028) (Full Paper) (Q2 in SJR citation index)

  76. Anupam, Gautam Choudhaury and S. Dharmaraja: Performance analysis of DRX mechanism using batch arrival vacation queueing system with N-policy in LTE-A networks, Annals of Telecommunications, 75 (2020) pp. 353–367. (Full Paper) (Q2 in SJR citation index)

  77. S. Dharmaraja, Vidyottama Jain, Priyanka Anjoy and Hukum Chandra: Empirical Analysis for Crop Yield Forecasting in India, Agricultural Research, 9(1) (2020) pp. 132-138. (Full Paper) (Q2 in SJR citation index)

  78. Priyanka Kalita, Gautam Choudhaury and S. Dharmaraja: Analysis of single server queue with modified vacation policy, Methodology and Computing in Applied Probability, 22 (2020) pp. 511 – 553. (MR4104003) (Full Paper) (Q2 in SJR citation index)

  79. Puneet Pasricha, S. Dharmaraja, Guglielmo D'Amico and Raimondo Manca: Portfolio Optimization of Credit Risky Bonds: A Semi-Markov Process Approach, Financial Innovation, 6, (2020), 14 pages. (Full Paper) (Q1 in SJR citation index)

  80. Garima Mishra, Anupam, S. Dharmaraja and Subrat Kar: Signaling Packet Aggregation and Compression in SIP Network: Modeling and Performance Evaluation, Wireless Personal Communications, 110 (2020) pp. 651–676. (Full Paper)

  81. Raju Srinivasan, Vidyottama Jain and S. Dharmaraja: Perception Based Performance Analysis of Higher Education Institutions: A Soft Computing Approach, Soft Computing, 24 (2020) pp. 513–521. (Full Paper) (Q2 in SJR citation index)

  82. Arti Singh and S. Dharmaraja: Optimal portfolio trading subject to stochastic dominance constraints under second order autoregressive price dynamics, International Transactions in Operational Research, 27 (2020) pp. 1771–1803. (MR4058067) (Full Paper) (Q1 in SJR citation index)

  83. Isha Chopra and S. Dharmaraja:Scenario Generation in Stochastic Programming Using Principal Component Analysis Based on Moment-Matching Approach, Opsearch, 57, (2020) pp. 190–201. (MR4104003) (Full Paper) (Q2 in SJR citation index)

  84. Shruti Kapoor and S. Dharmaraja: Steady State Analysis of Fluid Queues Driven by Birth Death Processes with Rational Rates, International Journal of Operational Research, 37(4) (2020) pp. 562 - 578. (Full paper)

  85. S. Ramakrishnan, Subrat Kar and S. Dharmaraja: Analysis of energy efficiency in cloud based heterogeneous RAN with large-scale antenna systems, Computer Networks, 149 (2019) pp. 265–276. (Full paper) (Q1 in SJR citation index)

  86. Shruti Kapoor, S. Dharmaraja and Viswanathan Arunachalam: Transient Solution of Fluid Queue modulated by two independent birth-death processes, International Journal of Operational Research, 36(1), pp. 1–11, 2019. (Full paper)

  87. S. Dharmaraja, Vineet Kumar and Abhishek Mishra: Indian Stock Market Prediction using Artificial Neural Networks on Tick Data, Financial Innovation, 5 (2019) 12 pages. (Full paper) (Q1 in SJR citation index)

  88. Puneet Pasricha and S. Dharmaraja: A Markov Modulated Dynamic Contagion Process with Application to Credit Risk, Journal of Statistical Physics, 175 (2019) pp. 495 - 511. (MR3968864) (Full paper) (Q1 in SJR citation index)

  89. S. Ramakrishnan, Subrat Kar and S. Dharmaraja: Analysis of Traffic Offload using Multi Attribute Decision Making Technique in Heterogeneous Shared Networks, IET Networks, 8 (2019) pp. 256 - 263. (Full paper)

  90. Anupam and S. Dharmaraja: Selection of DRX Scheme for Voice Traffic in LTE-A Networks: Markov Modeling and Performance Analysis, Journal of Industrial and Management Optimization (JIMO), 15 (2019) pp 739 - 756. (Full paper) (Q2 in SJR citation index)

  91. Anupam and S. Dharmaraja: An analytical model driven by fluid queue for battery life time of an user equipment in LTE-A networks, Physical Communication, 30 (2018) pp. 213 - 219. (Full paper) (Q2 in SJR citation index)

  92. Viswanathan Arunachalam, Garima Mishra and S. Dharmaraja: Optimal Number of Frames Transmitted in a Sensing Based Opportunistic Spectrum Access, Physical Communication, 26 (2018) pp. 156 - 161. (Full paper) (Q2 in SJR citation index)

  93. S. Dharmaraja, Puneet Pasricha and Paola Tardelli: Markov Chain Model with Catastrophe to Determine Mean Time to Default of Credit Risky Assets, Journal of Statistical Physics, 169, (2017) pp. 876 - 888. (Full paper) (Q1 in SJR citation index)

  94. Puneet Pasricha S. Dharmaraja and Viswanathan Arunachalam: Markov Regenerative Credit Rating Model, Journal of Risk Finance, 18, Issue 3, (2017), pp. 311 -325. (Full paper) (Typo: On Page 320, In Matrix 1, transition probability from D to D is 1, i.e., P_{D,D}=1) (Q2 in SJR citation index)

  95. Arti Singh and S. Dharmaraja: Mean-variance optimal trading problem subject to stochastic dominance constraints with second order autoregressive price dynamics, Mathematical Methods of Operations Research, 86, Issue 1 (2017), pp. 29 - 69. (Full paper) (Q2 in SJR citation index)

  96. R. Sudhesh, A. Azhagappan and S. Dharmaraja: Transient analysis of M/M/1 queue with working vacation, heterogeneous service and customers' impatience, RAIRO - Operations Research, 51 (3) 2017, pp. 591 - 606. (DOI: http://dx.doi.org/10.1051/ro/2016046)

  97. R. Sudhesh, P. Savitha and S. Dharmaraja: Transient analysis of a two-heterogeneous servers queue with system disaster, server repair and customers' impatience, TOP, 25 (2017), pp. 179 - 205. (Full paper) (Q2 in SJR citation index)

  98. Himanshu Sharma and S. Dharmaraja: Effect of outliers on volatility forecasting and Value at Risk estimation in crude oil markets, OPEC Energy Review, 40 (2016) pp. 276 - 299.

  99. S. Dharmaraja, Resham Vinayak and Kishor S. Trivedi: Reliability and Survivability of Vehicular Ad hoc Networks: An Analytical Approach, Reliability Engineering and System Safety, 153 (2016) pp. 28-38. (Full paper) (Q1 in SJR citation index)

  100. Garima Mishra, S. Dharmaraja and Subrat Kar: Reducing Session Establishment Delay using Timed out Packets in SIP Signaling Network, International Journal of Communication Systems, 29 (2016) pp. 262 - 276. (Full paper) (Q2 in SJR citation index)

  101. S. Dharmaraja and Rakesh Kumar: Transient Solution of a Markovian Queuing Model with Heterogeneous Servers and Catastrophes, Opsearch, 52 (2015) pp. 810 - 826. (Full paper) (Q2 in SJR citation index)

  102. Shruti Kapoor and S. Dharmaraja: On the Exact Transient Solution of Fluid Queue Driven by a Birth Death Process with Specific Rational Rates and Absorption, Opsearch, 52 (2015) pp. 746 - 755. (Full paper) (Q2 in SJR citation index)

  103. S. Dharmaraja, Antonio Di Crescenzo, Virginia Giorno, Amelia G. Nobile: A Continuous-time Ehrenfest model with Catastrophes and its Jump-diffusion Approximation, Journal of Statistical Physics, 161 (2015) pp. 326-345. (MR3401020) (Full paper) (Q1 in SJR citation index)

  104. Vandana Gupta, S. Dharmaraja and V. Arunachalam: Stochastic Modeling for Delay Analysis of a VoIP Network, Annals of Operations Research, 233 (2015) pp. 171 - 180. (MR3400069) (Full paper) (Q1 in SJR citation index)

  105. Resham Vinayak, Dilip Krishnaswamy and S. Dharmaraja: Analytical Modeling of TCP NewReno using Generalized Stochastic Petri Nets, International Journal of Communication Systems, 27 (2014) pp. 4185-4198. (Full paper) (Q2 in SJR citation index)

  106. A. Senthil Vadivu, Resham Vinayak, S. Dharmaraja and R. Arumuganathan: Performance Analysis of Voice over Internet Protocol via Non Markovian Loss System with Preemptive Priority and Server Break Down, Opsearch, 51 (2014) pp. 50 - 75. (MR3187723) (Full paper) (Q2 in SJR citation index)

  107. Resham Vinayak, S. Dharmaraja and V. Arunachalam: On the Study of Simultaneous Service by Random Number of Servers with Retrial and Preemptive Priority, International Journal of Operational Research, 20 (2014) pp. 68 - 90. (MR3243057) (Full paper)

  108. Vandana Gupta and S. Dharmaraja: Reliability and performance modeling of VoIP system with multiple component failure, International Journal of Reliability and Safety, 7 (2013) pp. 58 - 74. (Full paper)

  109. Resham vinayak and S. Dharmaraja: Semi-Markov Modeling Approach for Deteriorating Systems with Preventive Maintenance, International Journal of Performability Engineering, 8, (2012) pp. 515 - 526. (Full paper)

  110. Vandana Gupta and S. Dharmaraja: Semi-Markov modeling of VoIP dependability in the presence of resource degradation and security attacks, Reliability Engineering and System Safety, 96 (2011) pp. 1627 - 1636. (Full paper) (Q1 in SJR citation index)

  111. Vaneeta Jindal, S. Dharmaraja and Kishor S Trivedi: Markov Modeling Approach for Survivability Analysis of Cellular Networks, International Journal of Performability Engineering, 7 (2011) pp. 429 - 440. (Full paper)

  112. Vandana Gupta, Mingwei Gong, S. Dharmaraja and Carey Williamson: Analytical Modeling of Bidirectional Multi-channel IEEE 802.11 MAC Protocols, International Journal of Communication Systems, 24 (2011) pp. 647-665. (Full paper) (Q2 in SJR citation index)

  113. Vandana Gupta, S. Dharmaraja and Mingwei Gong: Analytical Modeling of TCP Flow in Wireless LANs, Mathematical and Computer Modelling, 53 (2011) pp. 684 - 693. (Full paper) (discontinued as of 2014)

  114. V. Arunachalam, Vandana Gupta and S. Dharmaraja: A Fluid Queue Modulated by Two Independent Birth-Death Processes, Computers and Mathematics with Applications, 60 (2010) pp. 2433 - 2444. (STMAZ 1205.60156, MR2725334 (2011g:60166)) (Full paper) (Q1 in SJR citation index)

  115. Vaneeta Jindal and S. Dharmaraja: Call processing delay analysis in cellular networks: a queueing model approach, Opsearch, 46 (2009) pp. 289 - 302. (STMAZ 1187.90101) (Full paper) (Q2 in SJR citation index)

  116. S. Dharmaraja, Vaneeta Jindal and Upkar Varshney: Reliability and survivability analysis for UMTS networks: An analytical approach, IEEE Transactions on Network and Service Management, 5 (2008), pp. 132 - 142. (Full paper) (Q1 in SJR citation index)

  117. S. Dharmaraja, Vaneeta Jindal and Attahiru Sule Alfa: Phase Type Models for Cellular Networks Supporting Voice, Video and Data Traffic, Mathematical and Computer Modelling, 47 (2008) pp. 1167 - 1180. (MR2428322 (2009f:94115)) (Full paper) (Typo: In page 1169, 0 = \overline{x}(A + A^0 x),... [12]) (discontinued as of 2014)

  118. Bharat B. Madan, S. Dharmaraja and Kishor S. Trivedi: Combined Guard Channel and Mobile Assisted Handoff for Cellular Networks, IEEE Transactions on Vehicular Technology, 57 (2008) pp. 502 - 510. (Full paper) (Q1 in SJR citation index)

  119. R. Jayaparvathy, S. Anand, S. Dharmaraja and S. Srikanth: Performance Analysis of IEEE 802.11 DCF with Stochastic Reward Nets, International Journal of Communication Systems, 20 (2007) pp. 273 - 296. (Full paper) (Q2 in SJR citation index)

  120. K.S. Trivedi, X. Ma and S. Dharmaraja: Performability Modeling of Wireless Communication Systems, International Journal of Communication Systems, 16 (2003) pp. 561-577. (Full paper) (Q2 in SJR citation index)

  121. S. Dharmaraja, Kishor S. Trivedi and D. Logothetis: Performance modelling of wireless networks with generally distributed hand-off interarrival times, Computer Communications Journal, 26 (2003) pp.1747-1755. (Full paper) (Q2 in SJR citation index)

  122. K.S. Trivedi, S. Dharmaraja and Xiaomin Ma: Analytic modeling of handoffs in wireless cellular networks, Information Sciences, 148 (2002) pp.155-166. (MR1947118, Zbl 1013.90018, STMAZ 1013.90018) (Full paper) (Q1 in SJR citation index)

  123. P.R. Parthasarathy and S. Dharmaraja: Transient solution of a single link with finite capacity supporting multiple streams, Performance Evaluation, 43 (2001) 1-14. (Zbl 1017.68022, STMAZ S422.03002) (Full paper) (Q1 in SJR citation index)

  124. S. Dharmaraja: Transient solution of a two-processor system, Mathematical and Computer Modelling, 32 (2000) 1117-1123. (MR1791750, Zbl 970.60101, STMAZ 0970.60101) (Full paper) (discontinued as of 2014)

  125. P.R. Parthasarathy, S. Dharmaraja and G. Manimaran: Transient solution of multiprocessor system with state-dependent arrivals, International Journal of Computer Mathematics, 73 (2000) 313-320. (MR 2000m:68032, Zbl 955.68015,STMAZ S412.03052) (Full paper) (Q2 in SJR citation index)

  126. P.R. Parthasarathy and S. Dharmaraja: Exact transient solutions of kinetics of first-order reactions with end effects, Journal of Mathematical Chemistry, 25 (1999) 281-294. (MR 2001a:92008 Zbl 953.92033) (Full paper)

  127. P.R. Parthasarathy and S. Dharmaraja: The transient solution of a local-jump heterogenous chain of diatomic systems, Journal of Physics A: Mathematical and Theoretical (formely Journal of Physics A: Mathematical and General), 31 (1998) 6579-6588. (Zbl 1002.82541, STMAZ 1002.82541) (Full paper) (Q1 in SJR citation index)

  128. B.W. Conolly, P.R. Parthasarathy and S. Dharmaraja: A Chemical Queue, The Mathematical Scientist, 21 (1997) 83-91. (MR 98h:60125 Zbl 898.60087, STMAZ 1013.90018) (Full paper) (discontinued as of 2019)

  Chapters of Books:


  1. Shruti Kapoor and S. Dharmaraja: Applications of Fluid Queues in Rechargeable Batteries, pp. 91 - 101, In: Joshua V., Varadhan S., Vishnevsky V. (eds) Applied Probability and Stochastic Processes. Infosys Science Foundation Series. Springer, Singapore, 2020. (https://doi.org/10.1007/978-981-15-5951-8_7)

  2. Aditi Gupta, S. Dharmaraja and Subrat Kar, Delay Efficient Load Balancing Scheme for Component Carrier Selection in Carrier Aggregation in LTE-A, pp. 151 - 163, in Systems Modeling: Methodologies and Tools, Eds. A. Puliafito and K. S. Trivedi, Springer, Cham, 2018. (https://doi.org/10.1007/978-3-319-92378-9_10)

  3. Vidyottama Jain and S. Dharmaraja: Crop Insurance in India: A Mathematical Review, pp. 97 - 107, in Operations Research in Development Sector, Eds. Tripathy, A., Subudhi, R.N., Patnaik, S., Nayak, J., Springer, Singapore, 2018. (https://doi.org/10.1007/978-981-13-1954-9_7)

  4. S. Dharmaraja, Birth and Death Processes and Chemical Kinetics, pp. 65 - 108, in Stochastic Modeling in Physical and Biological Sciences, Eds. V. Thangaraj and Gautam Choudhury, Narosa, 2016. (http://www.narosa.com/books_display.asp?catgcode=978-81-8487-544-7)

  5. Kishor S. Trivedi, Kalyanaraman Vaidyanathan and S. Dharmaraja, Markov Chains Models and Applications, pp. 393 - 421, in Modeling and Simulation of Computer Networks and Systems: Methodologies and Applications, Eds. Mohammad S. Obaidat, Faouzi Zarai and Petros Nicopolitidis, Elsevier, 2015. (https://doi.org/10.1016/B978-0-12-800887-4.00013-4)

  6. Kishor S. Trivedi and S. Dharmaraja, Markov Modeling in Reliability, pp. 1045 - 1048, in Encyclopaedia of Quantitative Risk Assessment, Eds. Brian Everitt and Ed. Melnick, John Wiley, 2008. (https://doi.org/10.1002/9780470061596.risk0492)

  7. Kishor S. Trivedi, Vaneeta Jindal and S. Dharmaraja, Stochastic Modeling Techniques for Secure and Survivable Systems, pp. 171 - 207, in Information Assurance: Dependability and Security in Networked Systems, Eds. Yi Qian, James Joshi, David Tipper and Prashant Krishnamurthy, Morgan Kaufmann, 2008. (https://doi.org/10.1016/B978-012373566-9.50009-4)

  Refereed International Conference Papers


  1. Ayush Nayak, Umangh and Dharmaraja Selvamuthu: A Study on 3D Multi-UAV Collision Avoidance with Interacting Multiple Model Filtering and Probabilistic Forbidden Zones,To appear in Proceedings of IEEE Global Communications Conference, December 7 - 11, 2026, Macau S.A.R., China, 2025.

  2. Ekaterina Fedorova, Olga Lizyura, S. Dharmaraja and Harini R: Analysis of VR/XR Services Quality of Experience based on Retrial Queueing System with Feedback, To appear in Proceedings of 27th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 21-25 September 2026, Moscow, Russia.

  3. S. Dharmaraja and Urvashi Godara: Maintainability Analysis of UAV Systems: an Analytical Approach, To appear in Proceedings of 26th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 21-25 September 2026, Moscow, Russia.

  4. S Dharmaraja, Ankit Kumar, Raina Raj, Vladimir Vishnevsky and Dmitry Kozyrev: Maintainability Analysis of a Tethered High Altitude Platform Using an Optimization Approach Under Environmental Constraints , To appear in Proceedings of 2026 IEEE Space, Aerospace and Defence Conference (SPACE), July 19 - 21, 2026, Bangalore, India, 2026.

  5. S Dharmaraja, Shivaani Hari and Shrenik Sakala: Preventive Maintenance Strategy for BLDC Motors of UAV Systems Using Acoustic-Based Health Index , To appear in Proceedings of 2026 IEEE Space, Aerospace and Defence Conference (SPACE), July 19 - 21, 2026, Bangalore, India, 2026.

  6. S Dharmaraja, Sanya Sachan and Urvashi Godara: Non-Homogeneous Markov-Based Risk Modeling and Mitigation for Autonomous Aerospace Missions, To appear in Proceedings of 2026 IEEE Space, Aerospace and Defence Conference (SPACE), July 19 - 21, 2026, Bangalore, India, 2026.

  7. Khushi Sen and S Dharmaraja: System Level Reliability and Availability Analysis of a UAV Using Analytical Approach, To appear in Proceedings of 2026 IEEE Space, Aerospace and Defence Conference (SPACE), July 19 - 21, 2026, Bangalore, India, 2026.

  8. Neha Tiwari, Jayesh Narayanan, Mothika Kamal Lochan, Kalavakuntla Anil Srinivas and S Dharmaraja: Non-Markovian Noise Modeling and Fidelity Optimization for Reliable Quantum Communication', To appear in Proceedings of 2026 IEEE Space, Aerospace and Defence Conference (SPACE), July 19 - 21, 2026, Bangalore, India, 2026.

  9. Kollipara Gopala Krishna Parthiv, Neha Tiwari and S Dharmaraja: Qudit Selection for Amplitude Damping Quantum Channel, To appear in IEEE Wireless Communications and Networking Conference (WCNC), April 13 - 16, Kuala Lumpur, Malaysia, 2026.

  10. Jiawang Zeng, Deepak Mishra, S Dharmaraja, Jinhong Yuan and Aruna Seneviratne: Securing UAV-Assisted Downlink OFDMA Systems with Untrusted Users, To appear in Proceedings of IEEE Global Communications Conference, December 8 - 12, 2025, Taipei, Taiwan.

  11. Neha Tiwari, Swades De and S Dharmaraja: Optimizing Aerial Nodes Placement for Minimized Outage in Satellite-Ground FSO Links, Proceedings of IEEE 102nd Vehicular Technology Conference: VTC2025-Fall, Chengdu, China, October 19-22, 2025, 2025, pp. 1-5, (https://ieeexplore.ieee.org/document/11310304/)

  12. Raina Raj, Ksenia Zhukova, Ruslana Nekrasova and S. Dharmaraja: Performance Analysis of High-altitute Plateforms using Mutli-server Retrial Queues, To appear in Proceedings of 25th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 22-25 September 2025, Moscow, Russia.

  13. Neha Tiwari, S Dharmaraja and Swades De: Optimizing Disaster Response With tHAPs: Modeling and Coverage Analysis for Crisis Zones, Proceedings of 2025 IEEE Space, Aerospace and Defence Conference (SPACE), July 21 - 23, 2025, Bangalore, India, 2025, pp. 1-6, (https://10.1109/SPACE65882.2025.11171280)

  14. S Dharmaraja, Sanya Sachan and Raina Raj: A CTMC-Based Approach for UAV Maintenance Optimization: Balancing Cost and Availability, Proceedings of 2025 IEEE Space, Aerospace and Defence Conference (SPACE), July 21 - 23, 2025, Bangalore, India, 2025, pp. 1-6, (https://10.1109/SPACE65882.2025.11170903)

  15. S Dharmaraja, Ankit Kumar and Raina Raj: Modeling and Simulation of UAV Maintainability Using an Optimization Approach with Environmental Constraints, Proceedings of 2025 IEEE Space, Aerospace and Defence Conference (SPACE), July 21 - 23, 2025, Bangalore, India, 2025, pp. 1-6, (https://10.1109/SPACE65882.2025.11171019)

  16. S Dharmaraja, Ritam Dasgupta and Ayush Sharma: A Hybrid Approach Towards Remaining Useful Life Prediction of Li-Ion Batteries of UAVs, Proceedings of 2025 IEEE Space, Aerospace and Defence Conference (SPACE), July 21 - 23, 2025, Bangalore, India, 2025, pp. 1-6, (https://10.1109/SPACE65882.2025.11171436)

  17. S Dharmaraja, Ishav Singla and Devansh Agarwal: Reliability and Maintainability in UAV Systems: an Analytical Approach, Proceedings of 2025 IEEE Space, Aerospace and Defence Conference (SPACE), July 21 - 23, 2025, Bangalore, India, 2025, pp. 1-6, (https://10.1109/SPACE65882.2025.11171267)

  18. S Dharmaraja, Adwaith H Sivam, Raina Raj, Priyanka Kalita, Dmitry Kozyrev and Vladimir Vishnevsky: Optimizing Tethered HAP Networks Configuration Using Genetic Algorithms, Proceedings of IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) 15 – 18 December 2024, Assam, India, IIT Guwahati, 2024. (https://doi.org/10.1109/ANTS63515.2024.10898945)

  19. Raina Raj, Dharmaraja Selvamuthu and Deepak Mishra: Traffic Control Analysis in High Altitude Platforms using a Semi-Markov Process Approach, Proceedings of EEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) 15–18 December 2024, Assam, India, IIT Guwahati, 2024. (https://doi.org/10.1109/ANTS63515.2024.10898543)

  20. Raina Raj, Dharmaraja Selvamuthu and Deepak Mishra: Traffic Control and Energy Harvesting in High Altitude Platforms: A Semi-Markov Process Approach, Proceedings of IEEE Global Communications Conference, December 8 - 12, 2024, Cape Town, South Africa, 2024. (https://doi.org/10.1109/GCWkshp64532.2024.11100824)

  21. S Dharmaraja, Rasmi K, Raina Raj, Vladimir Vishnevsky and Dmitry Kozyrev: An Investigation of Phased Mission Reliability Analysis for tethered HAP Systems, Proceedings of 27th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 23 - 27 September 2024, Moscow, Russia, LNCS 15460, pp. 376 - 388, 2025. (https://doi.org/10.1007/978-3-031-80853-1_1)

  22. Vishwash Tetarwal, Kavya Dashora and S. Dharmaraja: Predictive Analysis of Market Trends in Agriculture using ML/AI Techniques, Proceedings of 2nd International IEEE Applied Sensing Conference (APSCON), January 22-24, 2024, in Goa, 2024.

  23. Neha Tiwari, Swades De and Dharmaraja Selvamuthu: Energy-Efficient, Turbulence-Regime based Adaptive FSO Broadcast Systems, Proceedings of 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), Hong Kong, 10-13 October 2023. (http:10.1109/VTC2023-Fall60731.2023.10333407)

  24. S. Dharmaraja, Aman Chauhan, Avedhesh Prasad, Priyanka Kalita and Anisha Aggarwal: Energy consumption management in hybrid AC/DC microgrid connected base station in 5G cellular networks, Proceedings of International Conference on Information, Control, and Communication Technologies (ICCT), October 2-6, 2023, Astrakhan, Russia. (http://doi.org/10.1109/ICCT58878.2023.10347115)

  25. S. Dharmaraja and Anisha Aggarwal: Energy Analysis for the Base Station: Analytical Approach, Proceedings of International Conference on Information, Control, and Communication Technologies (ICCT), October 2-6, 2023, Astrakhan, Russia. (https://doi.org/10.1109/ICCT58878.2023.10347072)

  26. S. Dharmaraja, Anisha Aggarwal and Priyanka Kalita: Stochastic Modelling for Energy Efficiency in LTE-A and LTE-5G Networks, Proceedings of 26th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 25-29 September 2023, Moscow, Russia, LNCS 14123, pp. 316 - 336, 2024. (http://dx.doi.org/10.1007/978-3-031-50482-2_25)

  27. Anisha Aggarwal and S. Dharmaraja: Energy Optimization of a Base Station using Q-learning Algorithm, Proceedings of 17th International Conference on Telecommunications (ConTEL), July 11–13, 2023, Graz, Austria. (http://dx.doi.org/10.1109/ConTEL58387.2023.10198963)

  28. Neha Tiwari, Swades De and Dharmaraja Selvamuthu: Modeling of Channel Asymmetry in HAP-Based Optical Wireless Communications, Proceedings of NCC, Feb. 20-23, 2023, Guwahati, India. (https://doi.org/10.1109/NCC56989.2023.10068106)

  29. Vladimir Vishnevsky, Dharmaraja Selvamuthu, Vladimir Rykov, Dmitry Kozyrev and Nika Ivanova: Reliability modeling of a flight module of a tethered high-altitude telecommunication platform, Proceedings of International Conference on Information, Control, and Communication Technologies (ICCT), October 3-7, 2022, Astrakhan, Russia, (https://doi.org/10.1109/ICCT56057.2022.9976764)

  30. Dharmaraja Selvamuthu, Vidyottama Jain and Raina Raj: Performance Analysis for Tethered HAP Systems: An Analytical Approach, 25th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 26-30 September 2022, Moscow, Russia. pp. 205 - 217, 2022. (https://doi.org/10.1007/978-3-031-23207-7_16)

  31. Vidyottama Jain, Vladimir Vishnevsky, Dharmaraja Selvamuthu, and Raina Raj: Analysis of Power Management in a Tethered High Altitude Platform using MAP/PH[3]/1 Retrial Queueing Model, 25th International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 26-30 September 2022, Moscow, Russia. pp. 218 - 230, 2022. (https://link.springer.com/chapter/10.1007/978-3-031-23207-7_17)

  32. S. Dharmaraja, Anisha and Kamalesh Neerasa: Analytical Modelling and Simulation of DRX Mechanism for Energy Harvesting, Proceedings of Reliability and Maintainability Symposium (RAMS) in Tucson AZ, USA (January 24-27, 2022), pp. 1-5, 2022. (https://doi.org/10.1109/RAMS51457.2022.9893979)

  33. S. Dharmaraja and Paola Tardelli: Partial Observed Fluid Queue Model for Rechargeable Batteries, Proceedings of 13th EAI International Conference on Performance Evaluation Methodologies and Tools (ValueTools 2020), Tsukuba, Japan, May 18-20, 2020, pp. 200 - 203, 2020. (Full paper)

  34. S. Dharmaraja, Rishabh Raj, Kishan Sahu and Anisha Aggarwal: Tradeoff Between Performance and Energy-Efficiency in DRX Mechanism in LTE-A Networks, Proceedings of IEEE Advanced Networks and Telecommunication Systems (IEEE ANTS), Goa, Dec. 16 - 19, 2019, pp. 1 - 5, 2019. (Full paper)

  35. S. Dharmaraja, Rishabh Raj, Kishan Sahu and Anisha Aggarwal: Energy Harvesting Modelling and Analysis in LTE-A Networks with DRX scheme, Proceedings of IEEE Global Communications Conference, December 9 - 13, 2019, Waikoloa, HI, USA, pp. 1 - 6, 2019. (Full paper)

  36. S. Ramakrishnan, Subrat Kar and S. Dharmaraja: Analysis of Mid-Haul Characteristics for LTE-NR Multi-Connectivity in Heterogeneous Cloud RAN, Proceedings of National Conference on Communications, IISc Bangalore, Feb. 20 - 23, pp. 1 - 6, 2019. (Full paper)

  37. S. Ramakrishnan, S. Dharmaraja and Subrat Kar: Analysis of Computational Complexity and Power Consumption in Cloud Based Heterogeneous RAN, Proceedings of National Conference on Communications, IIT Hyderabad, Feb. 25 - 28, pp. 572 - 577, 2018. (Full paper)

  38. Anupam and S. Dharmaraja: A Proposed Joint Call Admission Control Scheme and its Analysis Using Generalized Stochastic Petri Nets, Proc. of ICoAC, Chennai, Dec. 14 - 17, pp. 247 - 252, 2017. (Full paper)

  39. Aditi Gupta, S. Dharmaraja and Subrat Kar: Delay Efficient load balancing scheme for Component Carrier selection in Carrier Aggregation in LTE-A, Proceedings of 10th EAI International Conference on Performance Evaluation Methodologies and Tools (ValueTools 2016), Taormina, Italy, October 26–28, 2016, pp. 105 - 108, 2016. (Full paper)

  40. Garima Mishra, S. Dharmaraja and Subrat Kar: Performance Analysis of Multi-party Conferencing in IMS using Vacation Queues, Proceedings of IEEE Advanced Networks and Telecommunication Systems (IEEE ANTS), New Delhi, Dec. 14 - 17, 2014, pp. 1 - 6, 2014. (http:10.1109/ANTS.2014.7057259)

  41. Simrandeep Kaur and S. Dharmaraja: Adaptive Joint Call Admission Control Scheme in LTE-UMTS Networks, Proceedings of IEEE International Conference on Communication, Networks and Satellite (IEEE COMNETSAT), Jakarta, 4-6 November 2014, pp. 63 - 70, 2014. (Full paper)

  42. Garima Mishra, S. Dharmaraja and Subrat Kar: Performance Analysis of SIP Signaling Network Using Hierarchical Modeling, Proceedings of National Conference on Communications (NCC), IIT Kanpur, 28 February - 2 March, 2014, pp. 1 - 5, 2014.

  43. S. Dharmaraja, Resham Vinayak, Xiaomin Ma and Kishor S. Trivedi: Reliability and Survivability of Vehicular Ad hoc Networks, Proceedings of SPECTS 2012, Genoa, Italy, July 8 - 11, 2012, pp. 1 - 7, 2012.

  44. Saurabh Gupta, Subrat Kar and S. Dharmaraja: BAAP: Blackhole Attack Avoidance Protocol for Wireless Network, Proceedings of IEEE International Conference on Computer and Communication Technology (ICCCT 2011), MNIT, Allahabad, Sept. 15 - 17, 2011, pp. 468 - 473. (Full paper)

  45. Saurabh Gupta, Subrat Kar and S. Dharmaraja: WHOP: Wormhole Attack Detection Protocol using Hound Packet, Proceedings of Innovations 2011, Abu Dhabi, UAE, April 25 - 27, 2011, pp. 226 - 231. (Full paper)

  46. Sireesha Madabhushi, S. Dharmaraja and Subrat Kar: Performance Modeling of Pre-authentication and Handoff Mechanisms in IEEE 802.11 based Vehicular Networks, Proceedings of SPECTS 2010, Ottawa, Canada, July 11 - 14, 2010, pp. 1 - 6. (Full paper)

  47. Resham Vinayak and S. Dharmaraja: Survivability Model for Voice over Internet Protocol using Markov Regenerative Process, The 20th annual International Symposium on Software Reliability Engineering (ISSRE 2009), Mysuru, India, November 16 - 19, 2009.

  48. Vandana Gupta and S. Dharmaraja: An Analytical Framework of Survivability Model for VoIP,The 20th annual International Symposium on Software Reliability Engineering (ISSRE 2009), Mysuru, India, November 16 - 19, 2009.

  49. Sachin Sharma, H.M. Gupta and S. Dharmaraja: EGPSR: Energy aware Greedy Perimeter Stateless Routing for Large Dense Static Wireless Ad-hoc networks, Proceedings of SPECTS 2008, Edinburgh, UK, June 16 - 18, 2008, pp. 122 - 129. (Full paper).

  50. Hongxia Sun, S. Dharmaraja, Carey Williamson and Vaneeta Jindal: An analytical model for wireless networks with stochastic capacity , Proceedings of SPECTS 2007, San Diego, USA, July 16 - 18, 2007, pp. 205 - 214. (Full paper).

  51. S. Dharmaraja, Vidyottama Vijay, Vaneeta Jindal and Suresh Chandra: Fuzzy Based Call Admission Control Scheme for Wireless Networks, Proceedings of IEEE International Workshop on Next Generation Wireless Networks (IEEE WoNGeN 2006), Bangalore, India, December 2006.

  52. Vaneeta Jindal, S. Dharmaraja and Kishor S Trivedi: Analytical survivability model for fault tolerant cellular networks supporting multiple services, Proceedings of SPECTS 2006, Calgary, Canada, July 31 - August 2, 2006, pp. 505 - 512. (Full paper)

  53. S. Dharmaraja and Suprasad V. Amari: MTBF Evaluation of a Repairable System with Generally Distributed Repair and Failure Times, Proceedings of The Tenth ISSAT International Conference on Reliability and Quality in Design (ISSAT 2004), Las Vegas, Nevada, USA, August 5 - 7, 2004, pp. 241 - 245.

  54. R. Jayaparvathy, S. Dharmaraja, S. Anand and S. Srikanth: Performance Evaluation of IEEE 802.11 with Stochastic Reward Nets, Proceedings of International Workshop on Wireless Ad-hoc Networks (IWWAN 2004), Oulu, Finland, May 31 - June 3, 2004, pp. 161 - 165.

  55. R. Jayaparvathy, S. Dharmaraja and S. Srikanth: Stochastic Petri Nets in Performance Evaluation of IEEE 802.11 WLANS, Proceedings of The International Conference on Operational Research: Emerging Paradigms for Information Technology, (APORS 2003), December, New Delhi, India, 2003, pp. 142-150.

  56. S. Dharmaraja and Attahiru Sule Alfa: Performance analysis of 3G wireless networks supporting voice, data and video traffic, Proceedings of The International Conference on Wireless Networks (ICWN 2003), June, Las Vegas, U.S.A., 2003, pp. 495-498.

  57. Kalyanaraman Vaidyanathan, S. Dharmaraja and Kishor S. Trivedi: Analysis of Inspection-based preventive maintenance in operational software systems, Proceedings of International Symposium on Reliable Distributed Systems (SRDS 2002), October, Japan, 2002, pp. 286 - 295. (Full paper)

  58. S. Dharmaraja, Kishor S. Trivedi and D. Logothetis: Performance analysis of cellular networks with generally distributed hand-off interarrival times, International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2002), July, California, USA, 2002.

  59. Kalyanaraman Vaidyanathan, S. Dharmaraja and Kishor S. Trivedi: Inspection-based Preventive Maintenance in Software Systems, Proceedings of International Conference on Dependable Systems and Networks (DSN 2002), June, Washington DC, USA, B52-53. (Fast Abstract)

  60. Dong Chen, S. Dharmaraja, Dongyan Chen, Lei Li, Kishor S. Trivedi, R.R. Some and A.P. Nikora: Reliability and availability analysis of the JPL Remote Exploration Experimentation system, Proceedings of International Conference on Dependable Systems and Networks (DSN 2002), June, Washington DC, USA, pp. 337-342. (Full paper)

  61. K.S. Trivedi, S. Dharmaraja, Xiaomin Ma: Analytic Modeling of Handoffs in Wireless Cellular Networks, Proceedings of First Symposium on Photonics, Networking and Computing (PNC 2002), March, 2002, North Carolina, USA, pp. 1383-1392. (Full paper)

  Recently Submitted Research Papers

  1. Sanyam Garg, Utpal Jyoti Deba Sarma, S. Dharmaraja and Paola Tardelli: A Generalized Unidirectional Elephant Random Walk with Self-Exciting Memory, 2026.

  2. S Dharmaraja, Urvashi Godara and Sufal Chandra Swar: Reliability Prediction and Optimization of UAV Systems Using Artificial Neural Networks and Particle Swarm Optimization, 2026.

  3. K Janani, S. Dharmaraja and Kavikumar Jacob: Evaluating Crude Oil Forecasting Models Amid Contemporary Geopolitical Conflicts, 2026.

  4. Simran Sharma, Rakesh Kumar and S. Dharmaraja: Markovian Modeling of a Voice Bot Queuing System with Breakdown and Reverse Balking, 2026.

  5. S. Dharmaraja, Aravind Udupa, Juho Kanniainen, Puneet Pasricha and Anubha Goel: Neural Hawkes Process for Crude Oil Price Forecasting, 2026.

  6. Utpal Jyoti Deba Sarma, Anthony Reveillac and S. Dharmaraja: Analysis of Discrete-Time Hawkes Process and its Associated Martingale, 2026.

  7. Bhupakhi Deka, Priyanka Kalita and S. Dharmaraja: Reliability Modeling of UAV Systems: Semi-Markov Approach, 2026.

  8. Aravind Udupa, S. Dharmaraja Juho Kanniainen, Puneet Pasricha and Anubha Goel: Attention-based Neural Hawkes Extension for Limit Order Book, 2026.

  9. Rasmi K and S. Dharmaraja: Reliability Evaluation of a UAV System Under Phase-Specific Failures and Repairs, 2026.

  10. Harini Rajendran, Ruslana Nekrasova, Ksenia Zhukova and S. Dharmaraja: Performance Analysis of Tethered HAP Communication Systems with Threshold-Based Priority and Retrial Mechanisms, 2026.

  11. Shamiksha Pandey, Paola Tardelli, Ksenia Zhukova and S. Dharmaraja: Hawkes/M/C Queues with Self-Exciting Retrials , 2026.

  12. Urvashi Godara, S Dharmaraja and Sufal Chandra Swar: Availability Assessment of Uncrewed Aerial Vehicle System Using Markov Process and Genetic Algorithm, 2025.

  13. Utpal Sarma, Paola Tardelli, Viswanathan Arunachalam and S. Dharmaraja: Limit Theorems for a Self and Mutually Exciting Discrete- Time Hawkes Process, 2025.

  14. Nika Ivanova, Vladimir Vishnevsky and S. Dharmaraja: Risk Tree Methodology for Enhancing Reliability of Tethered High-Altitude Unmanned Platforms, 2025.

  15. Priya Mittal and S. Dharmaraja: Asian Basket option under stochastic liquidity, 2025.

  16. S. Dharmaraja, Shamiksha Pandey and Paola Tardelli: Limit Theorems for Spatio-Temporal Hawkes Processes on Polish Spaces, 2025.

  17. S Dharmaraja and Paola Tardelli: Mean-Fields Limits of Hawkes Processes in a Random Environment, 2025.

  18. Ankit Kumar, S Dharmaraja, Raina Raj and Rasmi K: Reliability Analysis of Tethered UAV System in Varied Environmental Conditions, 2024.

  19. Sebasthi Priya, R Sudhesh, Priyanka Kalita and S. Dharmaraja: Stochastic Modeling and Analysis of Energy Efficiency in Tethered High Altitude Platforms Based Smart Macro Base Station, 2024.

  20. Mohammad Sarfraz, S. Dharmaraja and N. Selvaraju: Analyzing Systematic Risk and Interest Rate Dynamics in Life Insurance Portfolios: Incorporating Regime-Switching Stochastic Interest Rate Model, 2024.

  21. Shakti Singh, S. Dharmaraja and N. Selvaraju: Optimizing Variable Annuity Fees with Semi-Markovian Health and VIX-Linked Features: A Q-Learning Analysis, 2024.

  22. Priyanka Kalita, Vidyottama Jain and S. Dharmaraja: Efficient Energy Management in a Tethered HAP: A Markov Regenerative Model Perspective on Performance Analysis, 2024.

  23. Mohammad Sarfraz, Viswanathan Arunachalam, Guglielmo D'Amico and S. Dharmaraja: A guided tour to the valuation of Variable annuities with GMxB guarantees based on Machine Learning Techniques, 2023.

Last modified: Mon Sept 28 2026