Staff profile

I am an Assistant Professor of Computer Science at Durham University, UK. Before this, I worked as a Postdoc in the College of Information and Computer Sciences at University of Massachusetts, Amherst, USA. I received my PhD from the department of Electrical and Computer Engineering at University of Waterloo, Canada, in November 2019. I obtained my Bachelors and Masters degrees in Egineering from Osmania University and Indian Institute of Science, Bangalore, respectively. My research focuses on performance modeling and analysis of communication networks with applications to Cloud computing, Internet of Things, Datacenters, Sensor networks, and Quantum networking. 

Open positions

I am looking for self-motivated PhD students. Please contact me if you are interested in working with me on my current research topics.

Research Groups

• NESTiD: Network Engineering, Science and Theory in Durham
• ACiD: Algorithms and Complexity in Durham

• Applied probability and queueing theory
• Internet of Things
• Performance modeling and analysis of communication networks
• Quantum networking
• Sequential analysis and changepoint detection

Conference Paper

• Yau, G. X., Vasantam, T., & Vardoyan, G. (2025, March). Service-the-Longest-Queue Among d Choices Policy for Quantum Entanglement Switching. Presented at QCNC2025: International Conference on Quantum Communications, Networking, and Computing, Nara, Japan
• Gauthier, S., Vasantam, T., & Vardoyan, G. (2024, September). An on-demand resource allocation algorithm for a quantum network hub and its performance analysis. Presented at QCE24: IEEE International Conference on Quantum Computing and Engineering, Montréal, Québec, Canada
• Tillman, I., Vasantam, T., Towsley, D., & Seshadreesan, K. P. (2024, September). Calculating the Capacity Region of a Quantum Switch. Presented at QCE2024: IEEE International Conference on Quantum Computing and Engineering, Montréal, Québec, Canada
• Bhambay, S., Mukhopadhyay, A., & Vasantam, T. (2023, October). The Power of Two Choices with Load Comparison Errors. Presented at MobiHoc '23: The Twenty-fourth International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing, Washington, DC
• Tillman, I., Vasantam, T., & Seshadreesan, K. P. (2022, November). A Continuous Variable Quantum Switch. Presented at IEEE Quantum Week 2022 - International Conference on Quantum Computing and Engineering (QCE), Broomfield, Colorado
• Vasantam, T., & Towsley, D. (2022, December). A throughput optimal scheduling policy for a quantum switch. Presented at Quantum Computing, Communication, and Simulation II, San Fransisco
• Vasantam, T., Towsley, D., & Veeravalli, V. V. (2021, December). Quickest Change Detection in the Presence of Transient Adversarial Attacks. Presented at 2021 55th Annual Conference on Information Sciences and Systems (CISS)
• Vasantam, T., & Mazumdar, R. R. (2019, December). Fluctuations Around the Mean-Field for a Large Scale Erlang Loss System Under the SQ(d) Load Balancing. Presented at 2019 31st International Teletraffic Congress (ITC 31)
• Vasantam, T., & Mazumdar, R. R. (2018, December). On Occupancy Based Randomized Routing Schemes in Large Systems of Shared Servers. Presented at 2018 30th International Teletraffic Congress (ITC 30)
• Vasantam, T., Mukhopadhyay, A., & Mazumdar, R. R. (2017, December). Mean-Field Analysis of Loss Models with Mixed-Erlang Distributions under Power-of-d Routing. Presented at 2017 29th International Teletraffic Congress (ITC 29)

Journal Article

• Bhambay, S., Vasantam, T., & Walton, N. (in press). Optimal Scheduling in a Quantum Switch. ACM SIGMETRICS Performance Evaluation Review,
• Bhambay, S., Mukhopadhyay, A., & Vasantam, T. (2024). The impact of load comparison errors on the power-of-d load balancing. Performance Evaluation, 164, Article 102408. https://doi.org/10.1016/j.peva.2024.102408
• Panigrahy, N. K., Vasantam, T., Basu, P., Towsley, D., Swami, A., & Leung, K. K. (2022). On the Analysis and Evaluation of Proximity Based Load Balancing Policies. ACM Transactions on Modeling and Performance Evaluation of Computing Systems, 7(2-4), Article 6. https://doi.org/10.1145/3549933
• Vasantam, T., & Mazumdar, R. R. (2021). Sensitivity of mean-field fluctuations in Erlang loss models with randomized routing. Journal of Applied Probability, 58(2), https://doi.org/10.1017/jpr.2020.99
• Vasantam, T., Mukhopadhyay, A., & Mazumdar, R. R. (2019). Insensitivity of the mean field limit of loss systems under SQ(d) routeing. Advances in Applied Probability, 51(4), https://doi.org/10.1017/apr.2019.41
• Vasantam, T., Mukhopadhyay, A., & Mazumdar, R. R. (2018). The mean-field behavior of processor sharing systems with general job lengths under the SQ(d) policy. Performance Evaluation, 127-128, 120-153. https://doi.org/10.1016/j.peva.2018.09.010

Other (Print)

• Vasantam, T., & Towsley, D. (2021). Stability Analysis of a Quantum Network with Max-Weight Scheduling
• Panigrahy, N. K., Vasantam, T., Basu, P., & Towsley, D. (2020). Proximity Based Load Balancing Policies on Graphs: A Simulation Study