Siddhartha Kumar • Senior Systems Engineer
Qamcom Research and Technology AB • Sweden

Biography

I am a Senior Systems Engineer at Qamcom Research and Technology AB, where I develop efficient algorithms for advanced communication and Joint Communication and Sensing (JCAS) systems. My work focuses on applied linear algebra and graph theory to solve complex challenges in the telecommunications industry.

I began my academic journey at Amrita Vishwavidyapeetham, India, where I received my Bachelor of Technology (B.Tech) in Electronics and Communication Engineering in 2013. My bachelor's thesis, supervised by Dr. Shikha Tripathi, was awarded funding through the Government of Karnataka's KSCST program.

In 2015, I earned my Master of Science in Communication Engineering from Chalmers University of Technology in Sweden. During my master's studies, I also served as a research intern in the Communication Systems Group within the Department of Signals and Systems. My thesis was jointly supervised by Prof. Alexandre Graell i Amat, Dr. Iryna Andriyanova, and Dr. Fredrik Brännström.

Following my master's, I pursued my doctoral studies at the University of Bergen and Simula UiB AS in Norway from 2015 to 2018. Under the guidance of Dr. Eirik Rosnes, Prof. Alexandre Graell i Amat, and Dr. Øyvind Ytrehus, I completed my Ph.D.

My primary research interests include JCAS systems, forward error correction, and information-theoretic privacy and security for distributed storage and computing. I have also contributed to the academic community by serving as a Technical Program Committee (TPC) member for prestigious conferences, including the IEEE Global Communications Conference (GLOBECOM) in 2020 and the IEEE Wireless Communications and Networking Conference (WCNC) in 2021.

Resume (Updated June 2025)

Publications

Journal

  1. R. Schlegel, S. Kumar, E. Rosnes, A. Graell i Amat, “ Privacy-Preserving Coded Mobile Edge Computing for Low-Latency Distributed Inference,” to appear in IEEE Journal on Selected Areas in Communications (JSAC), 2022
  2. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, E. Yaakobi, “Multi-Server Weakly-Private Information Retrieval,” to appear in IEEE Transactions on Information Theory, 2021
  3. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, E. Yaakobi, “The Capacity of Single-Server Weakly-Private Information Retrieval,” IEEE Journal on Selected Areas in Information Theory, vol. 2, no. 1, March, 2021
  4. S. Kumar, H.-Y. Lin, E. Rosnes, A. Graell i Amat, “Achieving maximum distance separable private information retrieval capacity with linear codes,” IEEE Transactions on Information Theory, vol. 65, no. 8, August, 2019
  5. S. Kumar, A. Graell i Amat, E. Rosnes, L. Senigagliesi, “Private Information Retrieval From a Cellular Network With Caching at the Edge,” IEEE Transactions on Communications, vol. 67, no. 7, July, 2019
  6. S. Kumar, A. Graell i Amat, I. Andriyanova, F. Brännström, E. Rosnes, “Code Constructions for Distributed Storage with Low Repair Bandwidth and Low Repair Complexity,” IEEE Transactions on Communications, vol. 66, no. 12, December 2018
  7. S. Kumar, E. Rosnes, A. Graell i Amat, “Secure Repairable Fountain Codes,” IEEE Communications Letters, vol. 20, no. 8, August 2016

Conference

  1. S. Kumar, M. H. Moghaddam, A. Wolfgang, T. Svensson, “Path Assignment in Mesh Networks at the Edge of Wireless Networks, ” in Proc. IEEE International Conference on Communications (ICC) Workshop, Montreal, Canada, June 2025
  2. R. Schlegel, S. Kumar, E. Rosnes, A. Graell i Amat, “Straggler-resilient secure aggregation for federated learning, ” in Proc. Eur. Signal Process. Conf. (EUSIPCO), Belgrade, Serbia, Aug./Sep. 2022 (Invited paper)
  3. S. Kumar, R. Schlegel, E. Rosnes, A. Graell i Amat, “Coding for Straggler Mitigation in Federated Learning, ” in Proc. IEEE International Conference on Communications (ICC), Seoul, South Korea, May 2022
  4. A. Frigård, S. Kumar, E. Rosnes, A. Graell i Amat, “Low-Latency Distributed Inference at the Network Edge Using Rateless Codes,” in Proc. International Symposium on Wireless Communication Systems (ISWCS), Berlin, Germany, September 2021 (Invited paper)
  5. R. Schlegel, S. Kumar, E. Rosnes, A. Graell i Amat, “Private Edge Computing for Linear Inference Based on Secret Sharing,” in Proc. IEEE Global Communications Conference (GLOBECOM), Taipei, Taiwan, December 2020
  6. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, E. Yaakobi, “The Capacity of Single-Server Weakly-Private Information Retrieval,” in Proc. IEEE International Symposium on Information Theory (ISIT), Los Angeles, CA, June 2020
  7. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, “Improved Private Information Retrieval for Coded Storage From Code Decomposition,” in Proc. IEEE Information Theory Workshop (ITW), Visby, Gotland, Sweden, August 2019 (Invited paper)
  8. S. Kumar, A. Graell i Amat, E. Rosnes, “Private Information Retrieval in Wireless Coded Caching,” in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Cannes, France, July 2019 (Invited paper)
  9. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, E. Yaakobi, “Weakly-Private Information Retrieval,” in Proc. IEEE International Symposium on Information Theory (ISIT), Paris, France, July 2019
  10. S. Kumar, H.-Y. Lin, E. Rosnes, A. Graell i Amat, “Local Reconstruction Codes: A Class of MDS-PIR Capacity-Achieving Codes,” in Proc. IEEE Information Theory Workshop (ITW), Guangzhou, China, November 2018
  11. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, “Asymmetry helps: Improved private information retrieval protocols for distributed storage,” in Proc. IEEE Information Theory Workshop (ITW), Guangzhou, China, November 2018
  12. H.-Y. Lin, S. Kumar, E. Rosnes, A. Graell i Amat, “A Capacity-Achieving PIR Protocol for Distributed Storage Using an Arbitrary Linear Code,” in Proc. IEEE International Symposium on Information Theory (ISIT), Vail, CO, June 2018
  13. S. Kumar, E. Rosnes, A. Graell i Amat, “Private Information Retrieval in Distributed Storage Systems Using an Arbitrary Linear Code,” in Proc. IEEE International Symposium on Information Theory (ISIT), Aachen, Germany, June 2017
  14. S. Kumar, A. Graell i Amat, I. Andriyanova, F. Brännström, “A Family of Erasure Correcting Codes with Low Repair Bandwidth and Low Repair Complexity,” in Proc. IEEE Global Communications Conference (GLOBECOM), San Diego, CA, December 2015

Thesis

  1. “Privacy, Security, and Repair in Distributed Storage Systems” (Doctoral Thesis), University of Bergen, August 2018
  2. “Repair Efficient Erasure Correcting Codes for Distributed Storage Systems” (Master Thesis), Chalmers University of Technology, June 2015
  3. “Speaker Emotion Recognition for Human Computer Interaction” (Bachelor Thesis), Amrita Vishwavidyapeetham, May 2013

Contact

Email

kumarsi@simula.no

Address

HIB - Thormøhlensgt. 55 5020 Bergen