Faculty · Department of Electrical Engineering

Bikash Kumar Dey

Bikash Kumar Dey

Contact

Email:
bikash@ee.iitb.ac.in

Office:
+91-22-2576-7429

Residence:
+91-22-2576-8429

Address:
Department of Electrical Engineering IIT Bombay, Powai Mumbai 400 076, India

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Research Interests

Information Theory Coding Theory Wireless communication

Qualifications

  • • Ph.D. from the Dept. of Elect. Comm. Engg., Indian Institute of Science, Bangalore, India.Feb’99-Jan’03
  • • Master of Engineering in Signal Processing from Indian Institute of Science, Bangalore, India, Aug’97-Jan’99

Work Experience

  • • Dec’15-Present: Professor, IIT Bombay, India
  • • Jan’11-Nov’15: Associate Professor, IIT Bombay, India
  • • May’05-Jan’11: Assistant Professor, IIT Bombay, India
  • • Jun’03-Apr’05:Assistant Professor, IIIT, Hyderabad, India
  • • Feb’03-Apr’03:Technical Member, Hellosoft India Pvt. Ltd., Hyderabad, India

Publications

Journal Papers ▼
  • Chinmay Gurjarpadhye, Jithin Ravi, Sneha Kamath, Bikash Kumar Dey , and Nikhil Karamchandani, "Fundamental limits of demand-private coded caching" , IEEE Transactions on Information Theory, vol. 68, no. 6, pp. 4106-6134, Jun. 2022. [ DOI ]
  • Varun Narayanan, Jithin Ravi, Vivek K Mishra, Bikash Kumar Dey , Nikhil Karamchandani, and Vinod M Prabhakaran, "Private index coding" , IEEE Transactions on Information Theory, vol. 68, no. 3, pp. 2020-2049, Mar. 2022.
  • Jithin Ravi and Bikash Kumar Dey , "Function Computation through a Bidirectional Relay" , IEEE Transactions on Information Theory, vol. 65, no. 2, pp. 902 - 916, Feb. 2019. [ DOI ]
  • Bikash Kumar Dey , Sidharth Jaggi and Michael Langberg, "Sufficiently Myopic Adversaries are Blind" , To appear , IEEE Transactions on Information Theory, 2019. [ DOI ]
  • Amitalok J. Budkuley, Bikash Kumar Dey , and Vinod M. Prabhakaran, "Communication in the Presence of a State-Aware Adversary" , IEEE Transactions on Information Theory, vol. 63, no. 11, pp. 7396 - 7419, Nov. 2017.
  • Manoj Mishra, Bikash Kumar Dey , Vinod M.Prabhakaran, and Suhas N. Diggavi, "Wiretapped Oblivious Transfer" , IEEE Transactions on Information Theory, vol. 63, no. 4, pp. 2560-2595, Apr. 2017.
  • Jithin Ravi, Bikash Kumar Dey , and Emanuele Viterbo, "Oblivious Transfer Over Wireless Channels" , IEEE Transactions on Communications, vol. 64, no. 3, pp. 893-905, Mar. 2016.
  • Sreejith Sreekumar, Bikash Kumar Dey , and Sibi Raj B Pillai, "Distributed Rate Adaptation and Power Control in Fading Multiple Access Channels" , IEEE Transactions on Information Theory, vol. 61, no. 10, pp. 5504 - 5524, Oct. 2015.
  • Krishnamoorthy Iyer, Sibi Raj B Pillai, and Bikash Dey, "On the Adaptive Sum-Capacity of Distribited Multiple Access under Individual CSI" , (Best paper award) , IETE Journal of Research, vol. 61, no. 6, pp. 659-672, May 2015.
  • E. Pannir Selvam, Bikash Kumar Dey , and Srikrishna Bhashyam, "An MMSE Strategy at Relays with partial CSI for a Multi-layer Relay Network" , IEEE Transactions on Signal Processing, vol. 62, no. 2, pp. 271-282, Jan. 2014.
  • Bikash Kumar Dey , Sidharth Jaggi, and Michael Langberg, "Codes against online adversaries: Large alphabets" , IEEE Transactions on Information Theory, vol. 59, no. 6, pp. 3304 - 3316, Jun. 2013.
  • Bikash Kumar Dey , Sidharth Jaggi, Michael Langberg, and Anand D. Sarwate, "Upper bounds on the capacity of binary channels with causal adversaries" , IEEE Transactions on Information Theory, vol. 59, no. 6, pp. 3753 - 3763, Jun. 2013.
  • Virag Shah, B. K. Dey, and D. Manjunath, "Network flows for functions" , IEEE Journal on Selected Areas of Communications - Special Issue on In-Network Computation: Exploring the Fundamental Limits, vol. 31, no. 4, pp. 714 - 730, Apr. 2013.
  • Brijesh Kumar Rai and Bikash Kumar Dey , "On network coding for sum-networks" , IEEE Transactions on Information Theory, vol. 58, no. 1, pp. 50 - 63, Jan. 2012.
  • Virag Shah, Bikash Kumar Dey , and D. Manjunath, "Network flows for functions" , Accepted , IEEE Journal on Selected Areas of Communications - Special Issue on In-Network Computation: Exploring the Fundamental Limits, 2012.
  • S. T. Aditya, O. Dabeer, and B. K. Dey, "A Channel Coding Perspective of Collaborative Filtering" , IEEE Transactions on Information Theory, vol. 57, pp. 2327 - 2341, Apr. 2011.
  • Bikash Kumar Dey , D. Manjunath, and Supriyo Chakraborty, "Estimating Network Link Characteristics using Packet-Pair Dispersion: A Discrete Time Queueing Theoretic Analysis" , Computer Networks, vol. 55, no. 5, pp. 1052-1068, Apr. 2011.
  • B. Jagyasi, B. K. Dey, S. N. Merchant, and U. B. Desai, "An efficient multibit aggregation scheme for multihop wireless sensor networks" , Eurasip Journal on Wireless Communications and Networking, pp. 781-785, 2008.
  • S. Batabyal, B. K. Dey, and V. U. Reddy, "A code-set for a robust 8.25 Mbps data rate for IEEE 802.11b WLANs" , IEEE Transactions on Vehicular Technology, vol. 56, no. 3, pp. 1131-1142, May 2007.
  • B. G. Jagyasi, B. K. Dey, S. N. Merchant, and U. B. Desai, "Weighted aggregation scheme with lifetime-accuracy tradeoff in wireless sensor network" , International Journal on Information Processing (IJIP), vol. 1, no. 2, pp. 1-9, 2007.
  • B. K. Dey and B. S. Rajan, "linear cyclic codes overDFT approach" , Design, Codes and Cryptography, vol. 34, pp. 89-116, Jan. 2005.
  • B. K. Dey, "On existence of good self-dual quasi-cyclic codes" , IEEE Transactions on Information Theory, vol. 50, pp. 1794-1798, Aug. 2004.
  • B. K. Dey and B. S. Rajan, "Affine invariant extended cyclic codes over Galois rings" , IEEE Transactions on Information Theory, vol. 50, no. 4, pp. 691-698, Apr. 2004.
  • B. K. Dey and B. S. Rajan, "Codes closed under arbitrary abelian group of permutations" , SIAM Journal of Discrete Mathematics, vol. 18, no. 1, pp. 1-18, 2004.
  • B. K. Dey and B. S. Rajan, "DFT domain characterization of quasi-cyclic codes" , Applicable Algebra in Engineering, Communication and Computing, Springer-Verlag, vol. 13, pp. 453-474, 2003.
  • A. Sarkar, B. K. Dey, and S. R. B. Pillai, "On the Error Exponents for Common Message Broadcasting over DMCs with Feedback," SPCOM 2022, Bangalore, India.
  • S. Chaudhuri, N. Sangwan, M. Bakshi, B. K. Dey, and V. M. Prabhakaran, "Compound Arbitrarily Varying Channels," In proceedings of 2021 IEEE International Symposium on Information Theory (ISIT), 2021, pp. 503-508.
  • N. Sangwan, M. Bakshi, B. K. Dey, and V. M. Prabhakaran, "Communication With Adversary Identification in Byzantine Multiple Access Channels," In proceedings of 2021 IEEE International Symposium on Information Theory (ISIT), 2021, pp. 688-693.
  • B. K. Dey, S. Jaggi, M. Langberg, A. D. Sarwate, C. Wang, "Symmetrizability for Myopic AVCs," IEEE International Symposium on Information Theory (ISIT), 2020.
  • S. Kamath, J. Ravi, B. K. Dey, "Demand-private coded caching and the exact trade-off for n = k = 2," National Conference on Communication (NCC), 2020.
  • N. Sangwan, M. Bakshi, B. K. Dey, V. Prabhakaran, "Multiple access channels with adversarial users," IEEE International Symposium on Information Theory (ISIT), 2019.
  • B. K. Dey, S. Jaggi, M. Langberg, A. D. Sarwate, C. Wang, "The interplay of causality and myopia in adversarial channel models," IEEE International Symposium on Information Theory (ISIT), 2019.
  • T. Li, S. Jaggi, M. Langberg, A. D. Sarwate, "Quadratically constrained channels with causal adversaries," IEEE International Symposium on Information Theory (ISIT), 2018.
  • V. Narayan, V. Prabhakaran, J. Ravi, B. K. Dey, N. Karamchandani, "Private index coding," IEEE International Symposium on Information Theory (ISIT), 2018.
  • A. Budkuley, B. K. Dey, V. Prabhakaran, "On the Rate Distortion Function of Arbitrarily Varying Remote Sources," IEEE Information Theory Workshop (ITW), 2018.
  • A. Budkuley, B. K. Dey, V. Prabhakaran, "Coding for arbitrarily varying remote sources," IEEE International Symposium on Information Theory (ISIT), 2017.
  • J. Ravi, B. K. Dey, "Broadcast Function Computation with Complementary Side Information," Global Telecommunications Conference (Globecom), 2016.
  • B. K. Dey, S. Jaggi, M. Langberg, A. D. Sarwate, "A bit of delay is sufficient and stochastic encoding is necessary to overcome online adversarial erasures," IEEE International Symposium on Information Theory (ISIT), July 2016, Barcelona, Spain.
  • A. Budkuley, B. K. Dey, V. Prabhakaran, "Dirty Paper Arbitrarily Varying Channel with a State-Aware Adversary," IEEE Information Theory Workshop (ITW), Oct. 2015, Jeju Island, Korea.
  • M. Mishra, T. Sharma, B. K. Dey, and V. Prabhakaran, "Private Data Transfer over a Broadcast Channel" in IEEE International Symposium on Information Theory, 2015, Hong Kong , Dec. 2015.
  • Bikash Kumar Dey , Sidharth Jaggi, and Michael Langberg, "Sufficiently Myopic Adversaries are Blind" in IEEE International Symposium on Information Theory , Jun. 2015.
  • Manoj Mishra, Bikash Kumar Dey , Vinod M. Prabhakaran, and Suhas Diggavi, "On the Oblivious Transfer Capacity of the Degraded Wiretapped Binary Erasure Channel" in IEEE International Symposium on Information Theory , Jun. 2015.
  • Jithin Ravi and Bikash Kumar Dey , "Zero-Error Function Computation through a Bidirectional Relay" in IEEE Information Theory Workshop , Apr. 2015.
  • Jithin Ravi, Bikash Kumar Dey , and Emanuele Viterbo, "Oblivious Transfer over OFDM and MIMO Channels" in IEEE Information Theory Workshop , Apr. 2015.
  • Amitalok Budkuley, Bikash Kumar Dey , and Vinod Prabhakaran, "Dirty Paper Arbitrarily Varying Channel with a State-Aware Adversary" in IEEE Information Theory Workshop, 2015, Jeju Island , Apr. 2015.
  • A.J. Budkuley, B.K. Dey, and V.M. Prabhakaran, "Writing on a dirty paper in the presence of jamming" in International Symposium on Information Theory (ISIT) 2014, Hawaii, USA , Dec. 2014.
  • Manoj Mishra, Bikash Kumar Dey , Vinod Prabhakaran, and Suhas Diggavi, "On the Oblivious Transfer Capacity Region of the Binary Erasure Broadcast Channel" in ITW , Dec. 2014.
  • A.J. Budkuley, B.K. Dey, and V.M. Prabhakaran, "Correlated jamming in a joint source channel communication system" in International Symposium on Information Theory (ISIT) 2014, Hawaii, USA , Dec. 2014.
  • Sreejith Sreekumar, Sibi Raj B Pillai, and Bikash Kumar Dey , "On the Adaptive Capacity Region of Fading MACs with Distributed CSI" in IEEE Information Theory Workshop , Nov. 2014.
  • Deepesh Data, Bikash K Dey, Manoj Mishra, and Vinod M Prabhakaran, "How to Securely Compute the Modulo-Two Sum of Binary Sources" in IEEE Information Theory Workshop , Nov. 2014.
  • Sreejith Sreekumar, Sibi Raj B Pillai, and Bikash Kumar Dey , "On the Noisy Feedback Capacity of Gaussian Broadcast Channels" in IEEE International Symposium on Information Theory , Jun. 2014.
  • Kamal Singh, Sibi Raj B Pillai, and Bikash K Dey, " On Fading MAC channels with asymmetric CSI" in ISIT 2013 , Jul. 2013.
  • K. Iyer, S. R. B. Pillai, and B. K. Dey, "Power Controlled Adaptive Sum-Capacity in the Presence of Distributed CSI,’ ISITA" in ISITA , Hawaii, USA , Dec. 2012.
  • B. K. Dey, S. Jaggi, M. Langberg, and A. D. Sarwate, "Improved Upper Bounds on the Capacity of Binary Channels with Causal Adversaries" in ISIT , Boston, USA , Dec. 2012.
  • J.Ravi and B.K. Dey, "Exact topology inference for DAGs using network coding" in IEEE International Symposium on Network Coding, Boston, U.S.A , Dec. 2012.
  • Y. K. Deshpande, S. R. B. Pillai, and B. K. Dey, "On the Sum Capacity of Multiaccess Block-Fading Channels with Individual Side Information" in ITW, Paraty, Brazil , Dec. 2011.
  • Y. K. Deshpande, S. R. B. Pillai, and B. K. Dey, "On the Sum Capacity of Multiaccess Block-Fading Channels with Individual Side Information" in ITW , Paraty, Brazil , Dec. 2011.
  • V. Shah, B. K. Dey, and D. Manjunath, "Network Flows for Functions" in ISIT , Dec. 2011.
  • V. Shah, B. K. Dey, and D. Manjunath, "Efficient Flow Allocation Algorithms for In-Network Function Computation" in Globecom , Dec. 2011.
  • V. Shah, B. K. Dey, and D. Manjunath, "Efficient Flow Allocation Algorithms for In-Network Function Computation" in Globecom , Dec. 2011.
  • B. K. Rai, B. K. Dey, and S. Shenvi, "Some bounds on the capacity of communicating the sum of sources" in ITW , Cairo, Egypt , Dec. 2010.
  • P. Selvam and B. K. Dey, "Improved Layering Protocol for Wireless Cooperative Networks" in ICFCC , Dec. 2010.
  • B. K. Dey, S. Jaggi, M. Langberg, and A. Sarwate, "Coding against delayed adversaries" in ISIT , Dec. 2010.
  • S. Shenvi and B. K. Dey, "A simple necessary and sufficient condition for the double unicast problem" in ICC , Dec. 2010.
  • S. Shenvi and B. K. Dey, "A Necessary and Sufficient Condition for Solvability of a $3s/3t$ Sum-network" in ISIT , Dec. 2010.
  • BK Rai, Bikash Dey, and Abhay Karandikar, "Some results on communicating the sum of sources over a network" in Workshop on Network Coding Theory and Applications , Dec. 2009.
  • B. K. Rai, B. K. Dey, , and A. Karandikar, "Some results on communicating the sum of sources over a network" in NetCod , Dec. 2009.
  • V. Ganwani, B. K. Dey, G. V. V. Sharma, S. N. Merchant, and U. B. Desai, "Performance analysis of amplify and forward based cooperative diversity in MIMO relay channels" in VTC -spring , Dec. 2009.
  • B. K. Rai and B. K. Dey, "Feasible alphabets for communicating the sum of sources over a network" in ISIT , Dec. 2009.
  • M. Kamat, B. K. Dey, U. Desai, and S. N. Merchant, "Fair scheduling in MIMO broadcast channels" in WPMC , Dec. 2009.
  • B. K. Dey, S. Jaggi, and M. Langberg, "Codes against Online Adversaries" in Forty-Seventh Annual Allerton Conference , Dec. 2009.
  • M. Langberg, S. Jaggi, and B. K. Dey, "Binary causal-adversary channels" in ISIT , Dec. 2009.
  • S. T. Aditya, O. Dabeer, , and B. K. Dey, "A channel coding perspective of recommendation systems" in ISIT , Dec. 2009.
  • S. Shenvi, B. K. Dey, S. Jaggi, , and M. Langberg, "‘“Real” Slepian-Wolf Codes" in ISIT , Dec. 2008.
  • S. Shintre, S. Katti, S. Jaggi, B. K. Dey, D. Katabi, , and M. Medard, "Real” and “Complex” Network Codes: Promises and Challenges" in NetCod , Dec. 2008.
  • G.Sharma, S. Jaggi, and B.K.Dey, "Network tomography via network coding" in ITA , Dec. 2008.
  • B. G. Jagyasi, D. Chander, S. N. Merchant, U. B. Desai, , and B. K. Dey, "MAAS: Multibit Adaptive Aggregation Scheme for Wireless Sensor Networks" in ICT , St. Petersburg, Russia , Dec. 2008.
  • B. Jagyasi, D. Chander, U. Desai, S. N. Merchant, , and B. K. Dey, "Blind adaptive distributed detection in multi-hop wireless sensor networks" in WPMC , Dec. 2008.
  • B. G. Jagyasi, D. Chander, U. B. Desai, S. N. Merchant, and B. K. Dey, "On robustness of Adaptive Weighted Aggregation Scheme for wireless sensor network" in WPMC , Dec. 2007.
  • B. G. Jagyasi, U. B. Desai, S. N. Merchant, D. Chander, and B. Dey, "AdWAS:Adaptive Weighted Aggregation Scheme for Single-hop and Multi-hop Wireless Sensor Network" in ChinaCom-WCN , Dec. 2007.
  • B. G. Jagyasi, B. K. Dey, S. N. Merchant, and U. B. Desai, "An MMSE based weighted aggregation scheme for event detection using wireless sensor network" in Proceedings of EUSIPCO , Dec. 2006.
  • B. G. Jagyasi, B. K. Dey, S. N. Merchant, , and U. B. Desai, "Weighted Aggregation Scheme with lifetime-accuracy tradeoff in wireless sensor network" in ICISIP , Dec. 2005.
  • S. Batabyal, B. K. Dey, and V. U. Reddy, "Design of code-set for a robust 8.25 Mbps data rate for IEEE 802.11b wlan" in IEEE Vehicular Technology Conference, Dallas Texas , Dec. 2005.
  • B. K. Dey, "On existence of good self-dual quasi-cyclic codes" in In Proceedings of 2004 IEEE International Symposium on Information Theory, Chicago, USA , pp.184, Dec. 2004.
  • B. K. Dey and B. S. Rajan, "Affine invariant extended cyclic codes over Galois rings" in Proceedings of 2003 IEEE International Symposium on Information Theory, Yokohama, Japan , pp.160, Dec. 2003.
  • B. K. Dey and B. S. Rajan, "Codes closed under arbitrary abelian group of permutations" in Proceedings of 2002 IEEE International Symposium on Information Theory, Lausanne, Switzerland , pp.201, Dec. 2002.
  • B. K. Dey and B. S. Rajan, "linear cyclic codes over DFT characterization" in Proceedings of AAECC-14 , pp.67-76, Dec. 2001.
  • B. K. Dey and B. S. Rajan, "DFT domain characterization of quasi-cyclic codes" in Proceedings of 2001 IEEE International Symposium on Information Theory, Washington D.C, USA , pp.31, Dec. 2001.
  • B. K. Dey and B. S. Rajan, "DFT characterization of minimal quasicyclic codes" in Proceedings of International Conference on Communications, Computers & Devices, (ICCCD-2000), IIT Kharagpur, India , pp.701-704, Dec. 2000.
  • B. K. Dey, V. U. Reddy, , and S. Dasgupta, "Optimal bases for DMT modulation with zero suffix and pre-detection equalizer" in Proc. of SPCOM99, IISc, Bangalore, India , Dec. 1999.
  • V. U. Reddy, B. K. Dey, , and S. Dasgupta, "Discrete multitone modulation with least squares inverse channel filtering" in Proceedings of 1999 IEEE Int. Conf. on Personal Wireless Comm. (ICPWC99), Feb. 17-19, Jaypur, India , Dec. 1999.
  • B. K. Dey and B. S. Rajan, "An algorithm to determine linearizability of primitive length cyclic group codes over elementary abelian groups" in SITA 99, Yuzawa, Niigata, Japan , pp.591-594, Dec. 1999.