Publications

Journal Publications

1. Aiswarya S., N. S. Karat, Deepthi P. P. and B. S. Rajan, "Communication Efficient Multi-Vehicle Private Information Retrieval for VANETs," in IEEE Transactions on Vehicular Technology  (Early Access)

2. Sreelakshmi, P., Pachat, J., Deepthi, P.P., Sageer Karat, N. and Sundar Rajan, B. (2025), "Index Code Design for Index Coded-NOMA Transmission in VANETs." Trans Emerging Tel Tech, 36: e70209. https://doi.org/10.1002/ett.70209 

3. A. A. Mahesh, N. S. Karat and B. S. Rajan, "An Optimal Error Correction Scheme for the Shuffle Phase of a MapReduce Distributed Computing System," in IEEE Communications Letters, vol. 25, no. 12, pp. 3765-3769, Dec. 2021 

4. J. Pachat, N. S. Karat, A. A. Mahesh, D. P. P. and B. S. Rajan, "Index Coded PSK Modulation in Vehicle to Vehicle Communication," in IEEE Transactions on Vehicular Technology, vol. 70, no. 5, pp. 4753-4766, May 2021 

5. J. Pachat, N. S. Karat, P. P. Deepthi and B. S. Rajan, "Index Coding in Vehicle to Vehicle Communication," in IEEE Transactions on Vehicular Technology, vol. 69, no. 10, pp. 11926-11936, Oct. 2020 

6. Sageer Karat N, Thomas A, Sundar Rajan B. Optimal Linear Error Correcting Delivery Schemes for Two Optimal Coded Caching Schemes. Entropy (Basel). 2020 Jul 13;22(7):766 

7. N. S. Karat, A. Thomas and B. S. Rajan, "Error Correction in Coded Caching With Symmetric Batch Prefetching," in IEEE Transactions on Communications, vol. 67, no. 8, pp. 5264-5274, Aug. 2019. 

8. N. S. Karat, S. Samuel and B. S. Rajan, "Optimal Error Correcting Index Codes for Some Generalized Index Coding Problems," in IEEE Transactions on Communications, vol. 67, no. 2, pp. 929-942, Feb. 2019. 

Conference Publications

1. A. K. Nath, N. S. Karat and P. P. Deepthi, "Conventional Caching Versus Coded Caching for Location-based Shared Caches," 2025 IEEE Virtual Conference on Communications (VCC), NY, USA, 2025, pp. 1-6.

2. Athul Krishna K L, Sadina K, Deepthi P. P, and Nujoom Sageer Karat, “Efficient Federated Submodel Learning Technique for VANET Applications” accepted for IEEE iConSCEPT 2025.

3. Arun K. Nath, Nujoom Sageer Karat, Deepthi P. P. , “Conventional Caching Versus Coded Caching for Location-based Shared Caches” accepted for IEEE VCC 2025  

4. Sarella Snehasri, Sadina K, Deepthi P. P, and Nujoom Sageer Karat “ A Comparative Analysis of Synthetic Data Generation with Differential Privacy Using VAE and GAN for Federated Learning” MAI-2024.

5. B. Thomas, S. D V, S. Muraleedas, V. V. Nair, N. Sageer Karat and A. Aprem, "Autonomous Intersection Management using Gated Recurrent Units," 2024 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Bangalore, India, 2024, pp. 1-6

6. Adwaith K. J., Aleena Ann George, Ashwin S., Samyuktha M. S., N. S. Karat, G. Sreelekha, and P. P. Deepthi, "EfficientNet-based Three Head CNN Model with CLAHE Pre-processing for Accurate Diabetic Retinopathy Detection," 2023 9th International Conference on Smart Computing and Communications (ICSCC), Kochi, Kerala, India, 2023, pp. 494-499

7. R. Likhitha, S. P, D. P. P and N. Sageer Karat, "User Clustering and Optimum Bandwidth Allocation for Down link Multi-Carrier NOMA," TENCON 2023 - 2023 IEEE Region 10 Conference (TENCON), Chiang Mai, Thailand, 2023, pp. 702-707.

8. S. Pazhoor, J. Pachat, N. S. Karat, V. Joseph, P. P. Deepthi and B. S. Rajan, "Optimal Index Code Design for IC-NOMA Transmission in VANETs," 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), London, United Kingdom, 2022, pp. 1-7,

9. K. S. Reddy, N. S. Karat and N. Karamchandani, "On the Optimal Transmission Rate for Symmetric Index Coding Problems," 2021 IEEE International Symposium on Information Theory (ISIT), 2021, pp. 220-225.

10. J. Pachat, N. S. Karat, A. A. Mahesh, D. P. P and B. S. Rajan, "Index Coded PSK Modulation in Vehicle to Vehicle Communication," 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021, pp. 1-6 

11. N. S. Karat, K. L. V. Bhargav, and B. S. Rajan, "On the Optimality of Two Decentralized Coded Caching Schemes With and Without Error Correction," 2020 IEEE International Symposium on Information Theory (ISIT), 2020, pp. 1664-1669. 

12. A. A. Mahesh, N. Sageer Karat and B. S. Rajan, "Min-rank of Embedded Index Coding Problems," 2020 IEEE International Symposium on Information Theory (ISIT), 2020, pp. 1723-1728. 

13. N. S. Karat, S. Dey, A. Thomas, and B. S. Rajan, "An Optimal Linear Error Correcting Delivery Scheme for Coded Caching with Shared Caches," 2019 IEEE International Symposium on Information Theory (ISIT), 2019, pp. 1217-1221. 

14. N. S. Karat, A. Thomas and B. S. Rajan, "Optimal Error Correcting Delivery Scheme for Coded Caching with Symmetric Batch Prefetching," 2018 IEEE International Symposium on Information Theory (ISIT), 2018, pp. 2092-2096. 

15. N. S. Karat, A. Thomas and B. S. Rajan, "Optimal Error Correcting Delivery Scheme for an Optimal Coded Caching Scheme with Small Buffers," 2018 IEEE International Symposium on Information Theory (ISIT), 2018, pp. 1710-1714. 

16. S. Samuel, N. S. Karat and B. S. Rajan, "Optimal linear error-correcting index codes for some generalized index coding problems," 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2017, pp. 1-6 

17. N. S. Karat and B. S. Rajan, "Optimal Linear Error Correcting Index Codes for Some Index Coding Problems," 2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017, pp. 1-6.

Ph.D. Thesis

• Error Correction in Index Coding and Coded Caching, Jan. 2020.

Talks

1. May 2025: Invited talk delivered at NIT Raipur on "Privacy-Preserving Data Access: Advances in Private Information Retrieval."

2. Jan 2024: Invited talk in a Faculty Development Program on Industry 5.0 held in College of Engineering, Adoor on the topic: "Channel coding for Industry 5.0".

3. September 2020: Invited lecture on "Error Correction in Coded Caching" at NIT Calicut.