Publications

Journals

1. An Umbrella Converse for Data Exchange: Applied to Caching, Computing, Shuffling and Rebalancing
   Prasad Krishnan, L. Natarajan and V. Lalitha
   Entropy, 2021, 23(8), 985. [online]

2. Codes with Minimum Bandwidth Cooperative Local Regneration
   M. Nikhil Krishnan, V. Lalitha, Sreeranjani Didugu
   IEEE Communication Letters, vol. 24, no. 12, pp. 2669–2673, December 2020. [ieeexplore]

3. Locally Decodable Index Codes
   L. Natarajan, P. Krishnan, V. Lalitha, Hoang Dau
   IEEE Transactions on Information Theory, vol. 66, no. 12, pp. 7387–7407, December 2020. [ieeexplore]

4. Straggler Mitigation with Tiered Gradient Codes
   Shanuja Sasi, V. Lalitha, Vaneet Aggarwal, B. Sundar Rajan
   IEEE Transactions on Communications, vol. 68, no. 8, pp. 4632–4647, August 2020. [ieeexplore]

5. Codes with Locality for Two Erasures
   N. Prakash, V. Lalitha, S. B. Balaji, P. Vijay Kumar
   IEEE Transactions on Information Theory, vol. 65, no. 12, pp. 7771–7789, December 2019. [ieeexplore]

6. Codes with Local Regeneration and Erasure Correction
   Govinda M. Kamath, N. Prakash, V. Lalitha, P. Vijay Kumar
   IEEE Transactions on Information Theory, vol. 60, no.8, pp.4637–4660, August 2014. [ieeexplore]

7. Linear Coding Schemes for the Distributed Computation of Subspaces
   V. Lalitha, N. Prakash, K. Vinodh, P. Vijay Kumar, S. Sandeep Pradhan
   IEEE Journal on Selected Areas in Communications, Special Issue on In-Network Computation: Exploring the Fundamental Limits, vol.31, no.4, pp.678–690, April 2013. [ieeexplore]

8. Distributed detection in the presence of correlated sensor readings: signal-space and communication-complexity view-point
   Venkatesan N. E., Tarun Agarwal, V. Lalitha, P. Vijay Kumar
   Special issue of Adhoc Networks, Elsevier, vol. 9, no. 6, pp. 1015-1027, August 2011. [online]

9. Distributed Function Computation over fields and rings via linear compression of sources
   K. Vinodh, V. Lalitha, N. Prakash, P. Vijay Kumar, and S. Sandeep Pradhan
   Journal of the Indian Institute of Science, vol. 91, no. 1, pp. 181-205, January-March 2011.

10. Wireless sensor networks for human intruder detection
    The SmartDetect Project Team
    Journal of the Indian Institute of Science, Special issue on Advances in Electrical Science, vol. 90, no. 3, pp. 471-480, July-September 2010.

11. DMT of Wireless Networks: An Overview
    K. Vinodh, N. Prakash, V. Lalitha, and P. V. Kumar
    Journal of Communications, vol. 5, no. 4, pp. 265-281, April 2010 (Invited). [online]

Conferences

1. Learning to Decode Trellis Coded Modulation
   Jayant Sharma and V. Lalitha
   accepted in National Conference on Communications (NCC) 2021, Kanpur, India.

2. On Gradient Coding with Partial Recovery
   S. Sarmasarkar, V. Lalitha and N. Karamchandani
   accepted in IEEE International Symposium on Information Theory (ISIT) 2021, Melbourne, Australia.

3. A Field Size Bound and Constructions of Maximally Recoverable Codes with Hierarchical Locality
   D. Shivakrishna, Aaditya M. Nair and V. Lalitha
   accepted in IEEE International Symposium on Information Theory (ISIT) 2021, Melbourne, Australia.

4. Secure Raptor Encoder and Decoder for Low Storage Blockchain
   Aayush Tiwari and V. Lalitha
   Proc. COMSNETS, 2021, Bengaluru, India (poster paper).

5. An Umbrella Converse for Data Exchange: Applied to Caching, Computing, Shuffling and Rebalancing
   Prasad Krishnan, L. Natarajan and V. Lalitha
   accepted in IEEE Information Theory Workshop, 2020, Riva Del Garda, Italy.

6. Secure Regenerating Codes for Reducing Storage and Bootstrap Costs in Sharded Blockchains
   Divija Swetha Gadiraju, V. Lalitha and Vaneet Aggarwal
   Proc. IEEE International Conference on Blockchain (Blockchain), 2020, Rhode Island, Greece.

7. Rack-aware Cooperative Regenerating Codes
   Shreya Gupta and V. Lalitha
   Proc. International Symposium on Information Theory and Applications (ISITA), 2020, Hawaii, USA.

8. Coded Data Rebalancing: Fundamental Limits and Constructions
   Prasad Krishnan, V. Lalitha and L. Natarajan
   Proc. IEEE International Symposium on Information Theory (ISIT), 2020, LA, USA.

9. On the Polarizing Behavior and Scaling Exponent of Polar Codes with Product Kernels
   M. Bhandari, I. Bansal and V. Lalitha
   Proc. National Conference on Communications (NCC) 2020, Kharagpur, India.

10. On Epsilon-MSCR Codes for Two Erasures
    Bh. Rekha Devi and V. Lalitha
    Proc. IEEE International Symposium on Information Theory (ISIT), 2019, Paris, France.

11. Locality in Index Coding for Large Min-Rank
    L. Natarajan, H. Dau, Prasad Krishnan and V. Lalitha
    Proc. IEEE International Symposium on Information Theory (ISIT), 2019, Paris, France.

12. Maximally Recoverable Codes with Hierarchical Locality
    Aaditya M. Nair and V. Lalitha
    Proc. National Conference on Communications (NCC)} 2019, Bangalore, India (Best Paper Award (Runner Up)).

13. On Locally Decodable Index Codes
    L. Natarajan, Prasad Krishnan and V. Lalitha
    Proc. IEEE International Symposium on Information Theory (ISIT), 2018, Vail, Colorado.

14. On Maximally Recoverable Codes for Product Topologies
    D. Shivakrishna, V. Arvind Rameshwar, V. Lalitha and Birenjith Sasidharan
    Proc. National Conference on Communications (NCC)} 2018, Hyderabad, India.

15. Locality-Aware Coded MapReduce for Server-Rack Architecture
    Sneh Gupta and V. Lalitha
    Proc. IEEE Information Theory Workshop (ITW) 2017, Kaohsiung, Taiwan.

16. Rate 1/3 Index Coding: Forbidden and Feasible Configurations
    V. Lalitha, Prasad Krishnan
    Proc. IEEE International Symposium on Information Theory (ISIT), 2017, Aachen, Germany.

17. A class of index coding problems with rate 1/3
    Prasad Krishnan and V. Lalitha
    Proc. International Symposium on Information Theory (ISIT), 2016, Barcelona, Spain.

18. Weight Enumerators and Higher Support Weights of Maximally Recoverable Codes
    V. Lalitha and Satyanarayana V. Lokam
    Proc. 53rd Annual Allerton Conference on Communication, Control, and Computing, October 2015.

19. Codes with Locality for Two Erasures
    N. Prakash, V. Lalitha, and P. Vijay Kumar
    Proc. IEEE International Symposium on Information Theory (ISIT), July 2014.

20. Evaluation of Codes with Inherent Double Replication for Hadoop
    M. Nikhil Krishnan, N. Prakash, V. Lalitha, Birenjith P. S., P. Vijay Kumar, Srinivasan Narayanamurthy, Ranjit Kumar and Siddhartha Nandi
    Proc. USENIX HotStorage, June 2014.

21. Evaluation of Codes with Inherent Double Replication for Hadoop
    Govinda M. Kamath, N. Prakash, V. Lalitha, and P. Vijay Kumar
    Proc. IEEE International Symposium on Information Theory (ISIT), July 2013.

22. Explicit MBR All-Symbol Locality Codes
    Govinda M. Kamath, Natalia Silberstein, N. Prakash, Ankit Singh Rawat, V. Lalitha, Onur Ozan Koyluoglu P. Vijay Kumar and Sriram Vishwanath
    Proc. IEEE International Symposium on Information Theory (ISIT), July 2013.

23. Codes with Local Regeneration
    Govinda M. Kamath, N. Prakash, V. Lalitha and P. Vijay Kumar
    IEEE Information Theory and Applications (ITA) workshop, San Diego, Feb. 2013 (Invited).

24. Optimal Linear Codes with a Local-Error-Correction Property
    N. Prakash, Govinda M. Kamath, V. Lalitha, and P. Vijay Kumar
    Proc IEEE International Symposium of Information Theory (ISIT), Cambridge, MA, July 2012.

25. Optimal linear codes with Local-error-correcting capability
    Govinda M. Kamath, N. Prakash, V. Lalitha, and P. Vijay Kumar
    IEEE Information Theory and Applications (ITA) workshop, San Diego, Feb. 2012 (Invited).

26. On the t-designs and Bounds Relating Query Complexity to Error Resilience in Locally Correctable Codes
    V. Lalitha, N. Prakash, Govinda M. Kamath and P. Vijay Kumar
    Proc. National Conference on Communications (NCC), February 2012.

27. A Nested Linear Codes Approach to Distributed Function Computation Over Subspaces
    V. Lalitha, N. Prakash, K. Vinodh, P. Vijay Kumar, and S. Sandeep Pradhan
    Proc. Annual Allerton Conference on Communication, Control, and Computing (Allerton), October 2011.

28. Subspace-based DOA Estimation Using Fractional Lower Order Statistics
    K. V. S. Hari and V. Lalitha
    Proc. IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 2011.

29. On the achievable rates of sources having a group alphabet in a distributed source coding setting,
    K. Vinodh, V. Lalitha, N. Prakash, P. Vijay Kumar, and S. Sandeep Pradhan
    Proc. Annual Allerton Conference on Communication, Control, and Computing (Allerton), October 2010.