Google Scholar,  DBLP

Research areas

• Low-latency communications
   
• Distributed storage
   
• Distributed learning

Research grants

• "Coding for Low-Latency Communication", DST-INSPIRE, Rs. 35,00,000, Sept 2022- Sept 2027 (Principal Investigator)

Journals

• M. Vajha, V. Ramkumar, and M. N. Krishnan,  "Streaming Codes for Three-Node Relay Networks With Burst Erasures," IEEE Transactions on Information Theory, vol. 71, no. 1, pp. 348-359, 2025.

• M. Vajha, V. Ramkumar, M. N. Krishnan, and P. V. Kumar,  "Explicit Rate-Optimal Streaming Codes With Smaller Field Size," IEEE Transactions on Information Theory, vol. 70, no. 5, pp. 3242-3261, 2024.

• G. K. Facenda, M. N. Krishnan, E. Domanovitz, S. Fong, A. Khisti, W.-T. Tan, and J. G. Apostolopoulos, "Adaptive Relaying for Streaming Erasure Codes in a Three Node Relay Network," IEEE Transactions on Information Theory, vol. 69, no. 7, pp. 4345-4360, 2023.

• M. Haghifam, M. N. Krishnan, A. Khisti, X. Zhu, W.-T. Tan, and J. G. Apostolopoulos, "On Streaming Codes With Unequal Error Protection," IEEE Journal on Selected Areas in Information Theory, vol. 2, no. 4, pp. 1165-1179, 2021.
• M. N. Krishnan, E. Hosseini, and A. Khisti, "Sequential Gradient Coding for Packet-Loss Networks," IEEE Journal on Selected Areas in Information Theory, vol. 2, no. 3, pp. 919-930, 2021.
   
• M. N. Krishnan, E. Hosseini, and A. Khisti, "Coded Sequential Matrix Multiplication for Straggler Mitigation," IEEE Journal on Selected Areas in Information Theory, vol. 2, no. 3, pp. 830-844, 2021.
• M. N. Krishnan, V. Lalitha, and S. Didugu, "Codes with Minimum Bandwidth Cooperative Local Regeneration," IEEE Communications Letters, vol. 24, no. 12, pp. 2669-2673, 2020.
   
• M. N. Krishnan, D. Shukla, and P. V. Kumar, "Rate-Optimal Streaming Codes for Channels With Burst and Random Erasures," IEEE Transactions on Information Theory, vol. 66, no. 8, pp. 4869-4891, 2020.
   
• M. N. Krishnan, V. Ramkumar, M. Vajha, and P. V. Kumar, "Simple Streaming Codes for Reliable, Low-Latency Communication," IEEE Communications Letters, vol. 24, no. 2, pp. 249-253, 2020.
   
• S. B. Balaji, M. N. Krishnan, M. Vajha, V. Ramkumar, B. Sasidharan, and P. V. Kumar, "Erasure coding for distributed storage: an overview," Science China Information Sciences, vol. 61, no. 10, pp. 100301:1-100301:45, 2018.
   
• M. N. Krishnan, B. Puranik, P. V. Kumar, I. Tamo, and A. Barg, "Exploiting Locality for Improved Decoding of Binary Cyclic Codes," IEEE Transactions on Communications, vol. 66, no. 6, pp. 2346-2358, 2018.
   
• B. Sasidharan, N. Prakash, M. N. Krishnan, M. Vajha, K. Senthoor, and P. V. Kumar, "Outer bounds on the storage-repair bandwidth trade-off of exact-repair regenerating codes," International Journal of Information and Coding Theory, vol. 3, no. 4, pp. 255-298, 2016.

Conference Proceedings

• M. N. Krishnan, M. Vajha, V. Ramkumar, G. Y. Sai, and X. Kong, "On Linear Field Size Access-Optimal MDS Convertible Codes," to appear in Proc. IEEE International Symposium on Information Theory (ISIT), 2025.
• V. Ramkumar, M. N. Krishnan, and M. Vajha, "Streaming Codes for Multi-Hop Relay Networks With Burst Erasures," to appear in Proc. IEEE International Symposium on Information Theory (ISIT), 2025.
• V. Ramkumar, M. Vajha and M. N. Krishnan, "Streaming Codes for Three-Node Relay Networks With Burst Erasures," in Proc. IEEE International Symposium on Information Theory (ISIT), 2024, pp. 1979-1984.
• M. N. Krishnan, A. Thomas, and B. Sasidharan, "Hierarchical Coded Gradient Aggregation Based on Layered MDS Codes," in Proc. IEEE International Symposium on Information Theory (ISIT), 2023, pp. 2547-2552.
• M. N. Krishnan, M. Vajha, V. Ramkumar, and P. V. Kumar, "Explicit Information-Debt-Optimal Streaming Codes with Small Memory," in Proc. IEEE International Symposium on Information Theory (ISIT), 2023, pp. 1112-1117.
• M. N. Krishnan, M. Ebrahimi, and A. Khisti, "Sequential Gradient Coding For Straggler Mitigation," in Proc. International Conference on Learning Representations (ICLR), 2023.
• V. Ramkumar, M. N. Krishnan, M. Vajha, and P. Vijay Kumar, "On Information-Debt-Optimal Streaming Codes With Small Memory," in Proc. IEEE International Symposium on Information Theory (ISIT), 2022, pp. 1578-1583.
   
• G. K. Facenda, E. Domanovitz, M. N. Krishnan, A. Khisti, S. L. Fong, W.-T. Tan, and J. G. Apostolopoulos, "On State-Dependent Streaming Erasure Codes over the Three-Node Relay Network," in Proc. IEEE International Symposium on Information Theory (ISIT), 2022, pp. 1951-1956.
   
• M. Vajha, V. Ramkumar, M. N. Krishnan, and P. V. Kumar, "Explicit Rate-Optimal Streaming Codes with Smaller Field Size," in Proc. IEEE International Symposium on Information Theory (ISIT), 2021, pp. 736-741.
   
• M. N. Krishnan, G. K. Facenda, E. Domanovitz, A. Khisti, W.-T. Tan, and J. G. Apostolopoulos, "High Rate Streaming Codes Over the Three-Node Relay Network," in Proc. IEEE Information Theory Workshop (ITW), 2021.
   
• V. Ramkumar, M. Vajha, M. N. Krishnan, and P. V. Kumar, "Staggered Diagonal Embedding Based Linear Field Size Streaming Codes," in Proc. IEEE International Symposium on Information Theory (ISIT), 2020, pp. 503-508.
   
• M. N. Krishnan, S. Hosseini, and A. Khisti, "Coded Sequential Matrix Multiplication For Straggler Mitigation," in Proc. Annual Conference on Neural Information Processing Systems (NeurIPS), 2020.
   
• M. N. Krishnan, D. Shukla, and P. V. Kumar, "A Quadratic Field-Size, Rate-Optimal Streaming Code for Channels with Burst and Random Erasures," in Proc. IEEE International Symposium on Information Theory (ISIT), 2019, pp. 852-856.
   
• M. N. Krishnan and P. V. Kumar, "Rate-Optimal Streaming Codes for Channels with Burst and Isolated Erasures," in Proc. IEEE International Symposium on Information Theory (ISIT), 2018, pp. 1809-1813.
   
• M. N. Krishnan, R. A. Narayanan, and P. V. Kumar, "Codes with Combined Locality and Regeneration Having Optimal Rate, dmin and Linear Field Size," in Proc. IEEE International Symposium on Information Theory (ISIT), 2018, pp. 1196-1200.
   
• M. N. Krishnan, B. Puranik, P. V. Kumar, I. Tamo, and A. Barg, "A study on the impact of locality in the decoding of binary cyclic codes," in Proc. IEEE International Symposium on Information Theory (ISIT), 2017, pp. 176-180.
   
• M. N. Krishnan and P. V. Kumar, "On MBR codes with replication," in Proc. IEEE International Symposium on Information Theory (ISIT), 2016, pp. 71-75.
   
• N. Prakash and M. N. Krishnan, "The storage-repair-bandwidth trade-off of exact repair linear regenerating codes for the case d = k = n - 1," in Proc. IEEE International Symposium on Information Theory (ISIT), 2015, pp. 859-863.
   
• M. N. Krishnan, N. Prakash, V. Lalitha, B. Sasidharan, P. V. Kumar, S. Narayanamurthy, R. Kumar, and S. Nandi, "Evaluation of codes with inherent double replication for hadoop," in Proc. 6th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage), 2014.

Books/Chapters

• Monograph "Codes for Distributed Storage" (joint with V. Ramkumar, S. B. Balaji, B. Sasidharan, M. Vajha and P. V. Kumar), Foundations and Trends in Communications and Information Theory, 2022.
   
• Book chapter on Distributed Storage (joint with V. Ramkumar, S. B. Balaji, B. Sasidharan, M. Vajha and P. V. Kumar) in the Concise Encyclopedia of Coding Theory, Chapman and Hall/CRC, 2021.

Courses taught at IIT Palakkad

• Big Data Lab (DS5102, Jan - May 2025)
   
• Error-Correcting Codes for Communications and Distributed Systems (EE5605, Jan - May 2025)
   
• Mathematics for Data Science (DS5004, Aug - Nov 2024)
   
• Introduction to Optimization (DS2010, Aug - Nov 2024) - jointly with Dr. Sahasranand K R
   
• Big Data Lab (DS5102, Jan - May 2024)
   
• Error-Correcting Codes for Communications and Distributed Systems (EE5605, Jan - May 2024)
   
• Linear Algebra for Engineers (EE5007, Aug - Nov 2023)
   
• Error-Correcting Codes for Communications and Distributed Systems (EE5605, Jan - May 2023)
   
• Communication Systems and Microwave Laboratory (EE3120, Jan - May 2023) - jointly with Dr. Swaroop Sahoo

Courses taught at IIIT Bangalore

• Computer Networks (EG 101, Mar - Jul 2022)
   
• Digital Design (ESS 102, Nov 2021 - Mar 2022) - jointly with Dr. Subhajit Sen (IIITB)
   
• Probability and Statistics (SM 211, Sept - Dec 2021)