[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. Nitu Sharma, S. Dharmaraja and Viswanathan Arunachalam: A Time Series Framework for Pricing Guaranteed Lifelong Withdrawal Benefit, To appear in Computational Economics, 2020. (Q2 in SJR citation index)

  2. Gautam Choudhaury, Priyanka Kalita and S. Dharmaraja: Analysis of a model of batch arrival single server queue with random vacation policy, To appear in Communications in Statistics – Theory and Methods, 2020. (https://doi.org/10.1080/03610926.2020.1728329)

  3. Anupam, Gautam Choudhaury and S. Dharmaraja: Performance analysis of DRX mechanism using batch arrival vacation queueing system with N-policy in LTE-A networks, To appear in Annals of Telecommunications, 2020. (https://doi.org/10.1007/s12243-018-0659-y)

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

  5. 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)

  6. 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)

  7. 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)

  8. 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. (Full Paper) (Q1 in SJR citation index)

      Refereed SCI and SCI Expanded Journal Papers

  9. 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)

  10. 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)

  11. 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. (Full paper) (Q1 in SJR citation index)

  12. 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)

  13. 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)

  14. 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)

  15. 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)

  16. 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)

  17. 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)

  18. 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)

  19. 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)

  20. 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)

  21. 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)

  22. 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)

  23. 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)

  24. 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)

  25. 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)

  26. 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)

  27. 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)

  28. 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)

  29. 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)

  30. 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)

  31. 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)

  32. 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)

  33. 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)

  34. 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)

  35. 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)

  36. 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)

  37. 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)

  38. 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)

  39. 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)

  40. 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. ?? - ??, in Applied Probability and Stochastic Processes, Eds. V. C. Joshua, S. R. S. Varadhan, and Vladimir Vishnevsky, Springer, 2020.

  2. Aditi Gupta, S. Dharmaraja and Subrat Kar, Delay Efficient Load Balancing Scheme for Component Carrier Selection in Carrier Aggregation in LTE-A, pp. 146 - 159, in Systems Modeling: Methodologies and Tools, Eds. A. Puliafito and K. S. Trivedi, Springer, 2018.

  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, 2018.

  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.

  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.

  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.

  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.

  Refereed International Conference Papers


  1. S. Dharmaraja and Paola Tardelli: Partial Observed Fluid Queue Model for Rechargeable Batteries, To appear in Proceedings of 13th EAI International Conference on Performance Evaluation Methodologies and Tools (ValueTools 2020), Tsukuba, Japan, May 18-20, 2020.

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

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

  4. 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)

  5. 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)

  6. 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)

  7. 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)

  8. 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.

  9. 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)

  10. 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.

  11. 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.

  12. 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)

  13. 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)

  14. 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)

  15. 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.

  16. 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.

  17. 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).

  18. 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).

  19. 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.

  20. 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)

  21. 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.

  22. 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.

  23. 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.

  24. 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.

  25. 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)

  26. 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.

  27. 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)

  28. 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)

  29. 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. R. Sudhesh, A. Mohammed shapique and S. Dharmaraja: Analysis of a dual-stage vacation queueing system with disaster and repairable server, 2020.

  2. Nitu Sharma, Puneet Pasricha S. Dharmaraja: Valuation Of Equity-Indexed Annuities Under Correlated Jump-Diffusion Processes, 2020.

  3. S. Dharmaraja, Anisha and Kamalesh Neerasa: Analytical Modelling and Simulation of DRX Mechanism for Energy Harvesting, 2020.

  4. S. Dharmaraja, Puneet Pasricha and Paola Tardelli: Correlated Defaults in Structural Credit Risk Model with Stochastic Default Barriers and Jump Clustering, 2020.

  5. Nitu Sharma, S. Dharmaraja and N Selvaraju: Variable annuities valuation under a mixed fractional Brownian motion environment with jumps considering mortality risk, 2019.

  6. Anupam and S. Dharmaraja: Reliability and Survivability Analysis of LTE-A Networks: An Analytical Approach, 2019.

  7. S. Dharmaraja and Paola Tardelli: Stochastic Modeling of Power-Saving Mechanism in a DRX-cycle using Hawkes Processes, 2019.

  8. Nitu Sharma and S. Dharmaraja: A Levy model for the valuation of Variable Annuities embedded with lifelong guarantees considering associated risks, 2019.

  9. Puneet Pasricha, S. Dharmaraja and N Selvaraju: A factor model with clustering for joint default risk, 2018.

  10. Puneet Pasricha, S. Dharmaraja and Paola Tardelli: Hedging and Utility Valuation of a Defaultable Claim Driven by Hawkes Processes, 2017.

  11. S. Dharmaraja and Puneet Pasricha: A Continuous Time Non-Homogeneous Markov Regenerative model with Catastrophe and Application to Credit Rating Dynamics, 2017.


Last modified: Sun May 31 2020