Publications

Google Scholar Link:  https://scholar.google.fr/citations?user=-qjjN2sAAAAJ&hl=en  

Patent

Sumit Kumar, Garimella Ramamurthy, ”A System for Implementation of Doubly Cognitive Wireless Sensor Networks”, Indian Patent Number: 297998, November 2011

Book Chapters

1. Jorge Querol, Sumit Kumar, Oltjon Kodheli, Abdelrahman Astro, Juan Duncan, Mohammad Gholamian, Rakesh Palisetty, Symeon Chatzinotas, Thomas Heyn, Guido Casati, and Bo Zhao. ”Non-terrestrial network testbeds for 5G and beyond.” In Non-Geostationary Satellite Communications Systems, pp. 405- 434, IET, 2022.

2. Jorge Querol, Alejandro Gonzalez, Vu Nguyen Ha, Sumit Kumar, and Symeon Chatzinotas. ”Wireless and Networking Technologies for Social Distancing - Indoor & Outdoor.” In Enabling Technologies for Social Distancing: Fundamentals, concepts and solutions, pp. 67-111, IET, 2022.

3. Kumar Sumit, Garimella Rama Murthy, and Naveen Chilamkurti. ”Cooperative Mesh Networks.” In Next-Generation Wireless Technologies, pp. 7-13. Springer, London, 2013.

4. Kumar Sumit, Deepti Singhal, and Rama Murthy Garimella. ”Cognitive wireless sensor networks.” In Intelligent Sensor Networks 205 (2012).

5. Sujeethnanda, M., Sumit Kumar, and G. Ramamurthy. ”Mobile wireless sensor networks: a cognitive approach.” In Wireless Sensor Networks From Theory to Applications (2013).

Journals

1. Sumit kumar, Jevgenij Krivochiza, Turker Yilmaz, Jorge Querol, Symeon Chatzinotas, Stefano Andrenacci, Joel Grotz, “5G-NR Over Transparent Payload GEO Satellites: A Hands-On Approach Using OpenAirInterface5G-NTN”, IEEE Open Journal of the Communications Society 2025, DOI 10.1109/OJCOMS.2025.3586871.

2. Ashish Kumar Meshram, Sumit Kumar, Jorge Querol, Symeon Chatzinotas, Stefano Andrenacci, "Reduced Complexity Initial Synchronization for 5G NR Multibeam LEO-based Non-Terrestrial Networks", in IEEE Open Journal of the Communications Society. 

3. Florian Volk, Thomas Schlichter, Sumit Kumar et.al., "5G Non-Terrestrial Networks with OpenAirInterface: An Experimental Study over GEO Satellite", In IEEE Access 2024 DOI: 10.1109/ACCESS.2024.3483958. 

4. Sheemar, Chandan Kumar and Solanki, Sourabh, and Querol, Jorge and Kumar, Sumit and Chatzinotas, Symeon. ”IRS Assisted MIMO Full Duplex: Rate Analysis and Beamforming Under Imperfect CSI.” IEEE Open Journal of the Communications Society, doi: 10.1109/OJCOMS.2023.3306524.

5. Marrero, Liz Martinez, Juan Carlos Merlano-Duncan, Jorge Querol, Sumit Kumar, Jevgenij Krivochiza, Shree Krishna Sharma, Symeon Chatzinotas, Adriano Camps, and Bj¨orn Ottersten. ”Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey.” IEEE Access 10 (2022): 45375-45409.

6. Alaee-Kerahroodi, Mohammad, Ehsan Raei, Sumit Kumar, and Bhavani Shankar MRR. ”Cognitive Radar Waveform Design and Prototype for Coexistence With Communications.” IEEE Sensors Journal 22, no. 10 (2022): 9787- 9802.

7. Kodheli, Oltjon, Abdelrahman Astro, Jorge Querol, Mohammad Gholamian, Sumit Kumar, Nicola Maturo, and Symeon Chatzinotas. ”Random access procedure over non-terrestrial networks: From theory to practice.” IEEE Access 9 (2021): 109130-109143.

8. Gautam, Sumit, Sumit Kumar, Symeon Chatzinotas, and Bj¨orn Ottersten. ”Experimental Evaluation of RF Waveform Designs for Wireless Power Transfer Using Software Defined Radio.” IEEE Access 9 (2021): 132609-132622. 

9. Merlano-Duncan, Juan Carlos, Liz Martinez-Marrero, Jorge Querol, Sumit Kumar, Adriano Camps, Symeon Chatzinotas, and Bj¨orn Ottersten. ”A remote carrier synchronization technique for coherent distributed remote sensing systems.” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 14 (2020): 1909-1922.

10. Kumar, Sumit, Florian Kaltenberger, Alejandro Ramirez, and Bernhard Kloiber. ”An SDR implementation of WiFi receiver for mitigating multiple cochannel ZigBee interferers.” EURASIP Journal on Wireless Communications and Networking 2019, no. 1 (2019): 1-21.

11. Kumar, Sumit, Deepti Singhal, and Garimella Rama Murthy. ”Doubly cognitive architecture based cognitive wireless sensor networks.” In Security, Design, and Architecture for Broadband and Wireless Network Technologies, pp. 121-126. IGI Global, 2013.

Conferences

1. Arina Caraus, Alessio Buscemi, Sumit Kumar and Ion Turcanu, "Evaluating Open-Source Large Language Models for Technical Telecom Question Answering", In IEEE IEEE Global Communications Conference (GLOBECOM), 2025, Taipei, Taiwan. 

2. Ayat Zaki Hindi, Jean Sebastien Sottet, Sumit Kumar, Ion Turcanu, Sebastien Faye "A Modular Network Digital Twin for Radio Coverage Prediction: From Theory to Practice", In IEEE IEEE Global Communications Conference (GLOBECOM), 2025, Taipei, Taiwan. 

3. Sumit Kumar, Juan Carlos Estrada Jimenez, Ion Turcanu “User-Centric Comparison of 5G NTN and DVB-S2/RCS2 Using OpenAirInterface and OpenSAND.” In IEEE Future Networks World Forum (FNWF) 2025, Bengaluru, India.

4. Luis Manuel Garcés-Socarrás, Amirhosein Nik, Flor Ortiz, Juan A Vásquez-Peralvo, Jorge Luis González Rios, Mouhamad Chehailty, Marcele Kuhfuss, Eva Lagunas, Jan Thoemel, Sumit Kumar, Vishal Singh, Juan Carlos Merlano Duncan, Sahar Malmir, Swetha Varadajulu, Jorge Querol, Symeon Chatzinotas. "Artificial Intelligence implementation of onboard flexible payload and adaptive beamforming using commercial off-the-shelf devices", arXiv preprint arXiv:2505.01853. 

5. Mouhamad Chehaitly, Houcine Chougrani, Sumit Kumar, et.al."A Study of Lunar Proximity Networks: Scenarios and Architectures", In 12ᵗʰ IEEE Wireless for Space and Extreme Environments (WISEE 2024), Floriada, USA. 

6. D. M. K. K. Venkateswara Rao, Sumit Kumar, Hamed Habibi, Jorge Querol, Symeon Chatzinotas, Holger Voos. "High-Resolution 5G Active Antenna Beam Pattern Measurement Using UAVs", In International Conference on Unmanned Aircraft Systems (ICUAS) (ICUAS '24), Chania, Crete, Greece. 

7. Sumit Kumar, Chandan Kumar Sheemar, Jorge Querol, Amirhossein Nik and Symeon Chatzinotas. ”Experimental Study of the Effects of RLC Modes for 5G-NTN applications using OpenAirInterface5G” in IEEE Global Communications Conference (GLOBECOM) 2023, Kuala Lumpur, Malaysia.

8. Ashish Kumar Meshram, Sumit Kumar, Jorge Querol, and Symeon Chatzinotas. ”Doppler effect mitigation in LEO-based 5G Non-Terrestrial Networks” IEEE Global Communications Conference (GLOBECOM) 2023, Kuala Lumpur, Malaysia.

9. Sumit Kumar, Chandan Kumar Sheemar, Jorge Querol, Turker Yilmaz, Symeon Chatzinotas, Marwan Hammouda, Thomas Heyn, Thomas Schlichter, Paulo Marques, Luis Pereira, Roberto Magueta, Adam kapovits, Stefano Cioni. ”5G NTN LEO Based Demonstrator Using OpenAirInterface5G” 40th International Communications Satellite Systems Conference - ICSSC 2023, Bradford, United Kingdom.

10. Ashish Kumar Meshram, Sumit Kumar, Jorge Querol, and Symeon Chatzinotas. ”Beam Centric Doppler Pre-Compensation for LEO based 5G-NTN” 40th International Communications Satellite Systems Conference - ICSSC 2023, Bradford, United Kingdom.

11. Chandan Kumar Sheemar, Sumit Kumar, Jorge Querol, and Symeon Chatzinotas. ”Location Dependent Allocation of Timers and Buffers at Layer-2 in LEO Based 5G-NTN” 40th International Communications Satellite Systems Conference - ICSSC 2023, Bradford, United Kingdom.

12. Sheemar, Chandan Kumar and Solanki, Sourabh and Querol, Jorge and Kumar, Sumit and Chatzinotas, Symeon. ”Robust Beamforming for IRS Aided MIMO Full Duplex Systems.” in IEEE Global Communications Conference: Signal Processing for Communications - Globecom 2023, Kuala Lumpur, Malaysia.

13. Chandan Kumar Sheemar, Sumit Kumar, Jorge Querol, and Symeon Chatzinotas. ”Adaptive Timers and Buffer Optimization for Layer-2 Protocols in 5G Non-Terrestrial Networks.” In 31st International Conference on Software, Telecommunications and Computer Networks - SoftCOM 2023, Split, Croatia.

14. Sumit Kumar, Abdelrahman Abdalla, Oltjon Kodheli, Jorge Querol, Symeon Chatzinotas, Thomas Schlichter, Guido Casati et al. ”5G-NTN GEO-based In-Lab Demonstrator using OpenAirInterface5G.” In 11th Advanced Satellite Multimedia Conference (ASMS) 2022, Graz, Austria.

15. Kodheli, Oltjon, Jorge Querol, Abdelrahman Astro, Sofia Coloma, Loveneesh Rana, Zhanna Bokal, Sumit Kumar et al. ”5G Space Communications Lab: Reaching New Heights.” In 2022 18th International Conference on Distributed Computing in Sensor Systems (DCOSS), pp. 349-356. IEEE, 2022.

16. Sumit Kumar, Oltjon Kodheli, Abdelrahman Abdalla, Jorge Querol, Symeon Chatzinotas, Guido Casati, Thomas Schlichter, et al. ”5G-NTN GEO-based Over-The-Air Demonstrator using OpenAirInterface.” in 39th International Communications Satellite Systems Conference (ICSSC) 2022, Stresa, Italy.

17. Sumit Kumar, Ashish Kumar Meshram, Abdelrahman Astro, Jorge Querol, Symeon Chatzinotas, Thomas Schlichter, Guido Casati, et al. ”OpenAirInterface as a platform for 5G-NTN Research and Experimentation.” In IEEE Future Networks World Forum (FNWF) 2022, Montreal, Canada.

18. Al-Hraishawi, Hayder, Eva Lagunas, Sumit Kumar, and Symeon Chatzinotas. ”Performance Evaluation of Forward Link Packet Scheduling in Satellite Communication Systems with Carrier Aggregation.” (2022). 

19. Gautam, Sumit, Sumit Kumar, Symeon Chatzinotas, and Bj¨orn Ottersten. ”Experimental Comparison of RF Waveform Designs for Wireless Power Transmission.” In 2021 IEEE 26th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), pp. 1-7. IEEE, 2021.

20. Querol, Jorge, Juan Carlos Merlano-Duncan, Liz Martinez-Marrero, Jevgenij Krivochiza, Sumit Kumar, Nicola Maturo, Adriano Camps, Symeon Chatzinotas, and Bj¨orn Ottersten. ”A Cubesat-Ready Phase Synchronization Digital Payload for Coherent Distributed Remote Sensing Missions.” In 2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), pp. 7888-7891. IEEE, 2021.

21. Sumit Kumar, Kumar Vijay Mishra, Sumit Gautam, Bhavani Shankar MR, and Bj¨orn Ottersten. ”Interference mitigation methods for coexistence of radar and communication.” In 2021 15th European Conference on Antennas and Propagation (EuCAP), pp. 1-4. IEEE, 2021.

22. Alaee-Kerahroodi, Mohammad, Ehsan Raei, Sumit Kumar, and Bhavani Shankar Mysore Rama Rao. ”Coexistence of communications and cognitive MIMO radar: Waveform design and prototype.” arXiv preprint arXiv:2103.11890 (2021).

23. Alaee-Kerahroodi, Mohammad, Sumit Kumar, MR Bhavani Shankar, and Kumar Vijay Mishra. ”Discrete-phase sequence design with stopband and PSL constraints for cognitive radar.” In 2020 17th European Radar Conference (EuRAD), pp. 17-20. IEEE, 2021.

24. Sumit Kumar, Florian Kaltenberger, Alejandro Ramirez, and Bernhard Kloiber. ”A WiFi SIC receiver in the presence of LTE-LAA for indoor deployment.” In 2019 IEEE Wireless Communications and Networking Conference (WCNC), pp. 1-6. IEEE, 2019.

25. Sumit Kumar, Florian Kaltenberger, Alejandro Ramirez, and Bernhard Kloiber. ”Robust ofdm diversity receiver under co-channel narrowband interference.” In 2018 14th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), pp. 1-8. IEEE, 2018.

26. Sumit Kumar, and Florian Kaltenberger. ”Mitigating Multiple Narrowband Interferers in SDR IEEE 802.11 g Diversity Receiver.” In Proceedings of the 24th Annual International Conference on Mobile Computing and Networking(ACM Mobicom), pp. 811-813. 2018.

27. Sumit Kumar, Florian Kaltenberger, Alejandro Ramirez, and Bernhard Kloiber. ”A robust decoding method for OFDM systems under multiple cochannel narrowband interferers.” In 2018 European Conference on Networks and Communications (EuCNC), pp. 368-372. IEEE, 2018.

28. Pradhan, Chandan, Kunal Sankhe, Sumit Kumar, and Garimella Rama Murthy. ”Full-duplex enodeB and UE design for 5G networks.” arXiv preprint arXiv:1506.02132 (2015).

29. Sankhe, Kunal, Chandan Pradhan, Sumit Kumar, and Garimella Ramamurthy. ”Machine learning based cooperative relay selection in virtual MIMO.” arXiv preprint arXiv:1506.01910 (2015).

30. Pradhan, Chandan, Kunal Sankhe, Sumit Kumar, and Garimella Rama Murthy. ”Revamp of eNodeB for 5G networks: Detracting spectrum scarcity.” In 2015 12th Annual IEEE Consumer Communications and Networking Conference (CCNC), pp. 862-868. IEEE, 2015.

31. Sankhe, Kunal, Chandan Pradhan, Sumit Kumar, and Garimella Rama Murthy. ” Cost-effective restoration of wireless connectivity in disaster hit areas using OpenBTS.” In 2014 Annual IEEE India Conference (INDICON), pp. 1-6. IEEE, 2014.

32. Pradhan, Chandan, Kunal Sankhe, Sumit Kumar, and Garimella Rama Murthy. ”Cognitive base station design for efficient spectrum utilization in cellular network.” In 2014 Eleventh International Conference on Wireless and Optical Communications Networks (WOCN), pp. 1-7. IEEE, 2014.

Tutorials 

1. Sumit Kumar, "Prototyping 5G-NTN with Open Source Software and COTS Hardware: From Lab Emulations to Live Satellite Testing." In IEEE Future Networks World Forum (FNWF) 2025, Bengaluru, India.

2. Sumit Kumar, Jorge Querol, Symeon Chatzinotas: "5G Non-Terrestrial Networks (NTN): Recent Advancements, Open Challenges, and the way towards 6G-NTN", In International Conference on Communication - ICC 2023, Rome, Italy (pdf)

3. Sumit Kumar, Jorge Querol: "5G Non-Terrestrial Networks: Recent Advancements, Open Challenges, and Research Tools" in COMSNETS 2023.