Dr. Neelesh B. Mehta

ECE Dept., Indian Institute of Science (IISc)

Cooperative Communications and Routing

· The Relay Selection and Transmission Tradeoff in Cooperative Communication Systems, Virag Shah, Neelesh B. Mehta, Raymond Yim, To appear in IEEE Trans. on Wireless Communications, 2010. (Now available on IEEEXplore Early Access)

· Optimal Timer Based Selection Schemes, Virag Shah, Neelesh B. Mehta, Raymond Yim, IEEE Trans. on Communications, Vol. 58, Jun. 2010, pp. 1814–1823

· Splitting Algorithms for Fast Relay Selection: Generalizations, Analysis, and a Unified View, Virag Shah, Neelesh B. Mehta, and Raymond Yim, IEEE Trans. on Wireless Communications, Vol. 9, Apr. 2010, pp. 1525–1535.

· A Complete Characterization of an Optimal Timer Based Selection Scheme, Virag Shah, Neelesh B. Mehta, and Raymond Yim, IEEE International Conference on Communications (ICC), Cape Town, South Africa, May 2010.

· Relay Load Balancing in Queued Cooperative Wireless Networks with Rateless Codes, Gaurav Bansal, Vinod Sharma, Neelesh B. Mehta, and Eitan Altman, IEEE International Conference on Communications (ICC), Cape Town, South Africa, May 2010

· On Optimal Timer-Based Distributed Selection For Rate-Adaptive Multi-user Diversity Systems, Ananda Theertha, Neelesh B. Mehta, Virag Shah, National Conference on Communications (NCC), Chennai, India, Jan. 2010. [Received best paper award]

· Implications Of The Half-Duplex Constraint On Relay-Aided Cooperation Using Rateless Codes, Rahul Meshram and Neelesh B. Mehta, National Conference on Communications (NCC), Chennai, India, Jan. 2010

· Relay Selection and Data Transmission Throughput Tradeoff in Cooperative Systems, Virag Shah, Neelesh B. Mehta, and Raymond Yim, IEEE Global Telecommunications Conference (Globecom), Honolulu, USA, Dec. 2009.

· Analysis, Insights and Generalization of a Fast Decentralized Relay Selection Mechanism, Virag Shah, Neelesh B. Mehta, and Raymond Yim, ICC, Dresden, Germany, Jun. 2009.

· Fast Multiple Access Selection Through Variable Power Transmissions, Raymond Yim, Neelesh B. Mehta, and Andreas F. Molisch, IEEE Transactions on Wireless Communications, Apr. 2009, pp. 1962-1973.

· Energy-Efficient Decentralized Control of Cooperative Wireless Networks with Fading, Ritesh Madan, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, IEEE Transactions on Automatic Control, Vol. 54, Mar. 2009, pp. 512–517.

· Asymmetric Cooperation Among Wireless Relays with Linear Precoding, Natasha Devroye, Neelesh B. Mehta, and Andreas F. Molisch, IEEE Transactions on Wireless Communications, Dec. 2008.

· Fast Distributed Multiple Access Based Selection With Imperfect Parameter Knowledge, Virag Shah, Dilip Bethanabhotla, Neelesh B. Mehta, National Conf. on Communications (NCC), Guwahati, India, Jan. 2009.

· Progressive Accumulative Routing: Fundamental Concepts and Protocol, Raymond Yim, Neelesh B. Mehta, Andreas F. Molisch, and Jinyun Zhang, IEEE Transactions on Wireless Communications, Nov. 2008.

· Energy-Efficient Cooperative Relaying over Fading Channels with Simple Relay Selection, Ritesh Madan, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, IEEE Transactions on Wireless Communications, Aug. 2008.

· Queued Cooperative Wireless Networks With Rateless Codes, Neelesh B. Mehta, Vinod Sharma, and Gaurav Bansal, IEEE Globecom 2008, New Orleans, LA, USA.

· Asynchronous Interference Mitigation in Cooperative Base Station Systems, Hongyuan Zhang, Neelesh B. Mehta, A. F. Molisch, Jin Zhang, and Huaiyu Dai, IEEE Transactions on Wireless Communications, Jan. 2008, pp. 155-165.

· Asymmetric Cooperation Among Relays with Linear Precoding, Natasha Devroye, Neelesh B. Mehta, and Andreas F. Molisch, IEEE Globecom 2007, Washington D.C., USA.

· Progressive Accumulative Routing in Wireless Networks, Raymond Yim, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, IEEE Globecom, Nov. 2006, San Francisco, USA.

· Energy-Efficient Cooperative Relaying over Fading Channels with Simple Relay Selection, Ritesh Madan, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, IEEE Globecom, Nov. 2006, San Francisco, USA.

· Cooperative relay networks using fountain codes, Andreas F. Molisch, Neelesh B. Mehta, Jonathan Yedidia, and Jin Zhang, IEEE Globecom, Nov. 2006, San Francisco, USA.

· Cooperative relay networks with mutual-information accumulation, Andreas F. Molisch, Neelesh B. Mehta, Jonathan Yedidia, and Jin Zhang, IEEE Trans. on Wireless Communications, Nov. 2007, pp. 4108-4119.

· On the fundamentally asynchronous nature of interference in cooperative base station systems, Hongyuan Zhang, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, and Huaiyu Dai, ICC 2007, Glasgow, Scotland.

· Energy-Efficient Decentralized Routing with Localized Cooperation Suitable for Fast Fading, Ritesh Madan, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, Allerton 2007.

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Antenna Selection and MIMO Techniques

· On Training and Training Voids for Receive Antenna Subset Selection in Time-Varying Channels," Vinod Kristem, Neelesh B. Mehta, Andreas F. Molisch, To appear in IEEE Global Communications Conf. (Globecom), Miami, FL, USA, Nov. 2010.

· A Novel, Balanced, and Energy-Efficient Training Method for Receive Antenna Selection, Vinod Kristem, Neelesh B. Mehta, Andreas F. Molisch, To appear in the IEEE Trans. on Wireless Communications, 2010.  (Now available on IEEEXplore Early Access)

· Optimal Receive Antenna Selection in Time-Varying Fading Channels with Practical Training Constraints, Vinod Kristem, Neelesh B. Mehta, and Andreas F. Molisch, IEEE Trans. on Communications, Vol. 58, Jul. 2010, pp. 2023-2034.

· A Novel Energy-Efficient Training Method for Receive Antenna Selection, Vinod Kristem, Neelesh B. Mehta, and Andreas F. Molisch, IEEE International Conference on Communications (ICC), Cape Town, South Africa, May 2010.

· Optimal Weighted Antenna Selection For Imperfect Channel Knowledge From Training, Vinod Kristem, Neelesh B. Mehta, Andreas F. Molisch, ICC, Dresden, Germany, June 2009.

· Receive Antenna Selection with Imperfect Channel Knowledge from Training, Vinod Kristem, Neelesh B. Mehta, National Conf. on Communications (NCC), Guwahati, India, Jan. 2009.

· Antenna Selection for Next Generation IEEE 802.16 Mobile Stations, Zhifeng Tao, Chun Nie, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, Toshiyuki Kuze, Shivendra Panwar, ICC 2008, Beijing, China.

· Antenna Selection Training in MIMO-OFDM/OFDMA Cellular Systems, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, Erdem Bala, IEEE CAMSAP 2007, St. Thomas, US Virgin Islands, Dec. 2007.

· Optimal signaling and selection verification for single transmit antenna selection, Yabo Li, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, IEEE Trans. on Communications, June 2007.

· Channel Statistics-Based RF Pre-Processing with Antenna Selection, P. Sudarshan, N. B. Mehta, A. F. Molisch, and J. Zhang, IEEE Trans. on Wireless Communications, Dec. 2006.

· Optimal Signaling for Single Transmit Antenna Selection with Erroneous Feedback, Yabo Li, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, IEEE Globecom, San Francisco, USA, Nov. 2006.

· Implementation Aspects of Antenna Selection for MIMO Systems, Andreas F. Molisch, Neelesh B. Mehta, Hongyuan Zhang, Peter Almers, and Jin Zhang, Chinacomm 2006, Beijing, China.

· Joint Pilot and Data Loading Technique for MIMO Systems Operating with Covariance Feedback, F. F. Digham, N. B. Mehta, A. F. Molisch, and J. Zhang, Fifth IEE Intl. Conf. on 3G Mobile Communication Technologies (3G 2004), Oct. 2004, London, UK. [Invited paper]

· Spatial Diversity and Channel Statistics-Based RF-Baseband Co-Design for Antenna Selection, P. Sudarshan, N. B. Mehta, A. F. Molisch, and J. Zhang, IEEE Vehicular Technology Conf. (VTC), 2004 (Fall), Los Angeles, USA. [Invited paper]

· Rate of MIMO Systems with CSI at Transmitter and Receiver from Pilot-Aided Estimation, N. B. Mehta, F. F. Digham, A. F. Molisch, and J. Zhang, IEEE Vehicular Technology Conf. (VTC), 2004 (Fall), Los Angeles, USA.

· Antenna Selection with RF Pre-Processing: Robustness to RF and Selection Non-Idealities, P. Sudarshan, N. B. Mehta, A. F. Molisch, and J. Zhang, IEEE Radio & Wireless Conf. (RAWCON), Sept. 2004, Atlanta, USA. [Invited paper]

· Channel Statistics-Based Joint RF-Baseband Design for Antenna Selection for Spatial Multiplexing, Pallav Sudarshan, Neelesh B. Mehta, Andreas Molisch, and Jin Zhang, IEEE Globecom, Nov. 2004, Dallas, USA.

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Multiple Access Protocols

· Dual Power Multiple Access with Multipacket Reception using Local CSI, Raymond Yim, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, IEEE Trans. on Wireless Communications, Vol. 8, Aug. 2009, pp. 4078–4088.

· Best Node Selection Through Distributed Fast Variable Power Multiple Access, Raymond Yim, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, IEEE ICC 2008, Beijing, China.

· Efficient Multiple Access Using Received Signal Strength and Local Channel Information, Raymond Yim, Neelesh B. Mehta, Andreas F. Molisch, Jin Zhang, IEEE WCNC 2008, Las Vegas, USA.

· Effect of Mobility on PRMA, Neelesh B. Mehta and Andrea Goldsmith, IEEE Trans. on Communications, Mar. 2002.

· Effect of Fixed and Interference-induced Packet Error Probability on PRMA, Neelesh B. Mehta, Andrea Goldsmith, IEEE Intl. Conf. on Communications (ICC), Jun. 2000, New Orleans, USA.

· Effect of Mobility on PRMA, Neelesh B. Mehta and Andrea Goldsmith. IEEE Intl. Conf. on Communications (ICC), Jun. 1999, Vancouver, Canada.

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Interference Modeling

· “Moment-Matched Lognormal Modeling of Uplink Interference with Power Control and Cell Selection,” Sarabjot Singh, Neelesh B. Mehta, and Andreas F. Molisch, IEEE Trans. on Wireless Communications, Vol. 9, Mar. 2010,pp.932–938.

· An Accurate Model For Interference From Spatially Distributed Shadowed Users in CDMA Uplinks, Neelesh B. Mehta, Sarabjot Singh, and Andreas F. Molisch, IEEE Global Telecommunications Conference (Globecom), Honolulu, USA, Dec. 2009.

· An Alternate Model for Uplink Interference in CDMA Systems with Power Control, Sarabjot Singh, Neelesh B. Mehta, National Conf. on Communications (NCC), Guwahati, India, Jan. 2009.

· Approximating a Sum of Random Variables with a Lognormal, Neelesh B. Mehta, Andreas F. Molisch, and Jingxian Wu, and Jin Zhang, IEEE Trans. on Wireless Communications, July 2007, pp. 2690-2699.

· Approximating the Sum of Correlated Lognormal or Lognormal-Rice Random Variables, Neelesh B. Mehta, Andreas F. Molisch, and Jingxian Wu, and Jin Zhang, IEEE Intl. Conf. on Communications (ICC), Jun. 2006, Istanbul, Turkey.

· A Flexible Lognormal Sum Approximation Method, Jingxian Wu, Neelesh B. Mehta, and Jin Zhang, IEEE Globecom, Nov. 2005, St. Louis, USA.

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Energy Harvesting Wireless Sensor Networks

· Voluntary Energy Harvesting Relays and Selection in Cooperative Wireless Networks, Bhargav Medepally and Neelesh B. Mehta, To appear in the IEEE Trans. on Wireless Communications, 2010.

· Voluntary Cooperative Energy Harvesting Relay Nodes: Analysis and Benefits, Bhargav Medepally, and Neelesh B. Mehta, IEEE International Conference on Communications (ICC), Cape Town, South Africa, May 2010.

· Implications of Energy Profile and Storage on Energy Harvesting Sensor Link Performance, Bhargav Medepally, Neelesh B. Mehta, Chandra R. Murthy, IEEE Global Telecommunications Conference (Globecom), Honolulu, USA, Dec. 2009.

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LTE and WCDMA

· Performance Analysis of User Selected Subband Channel Quality Indicator Feedback Scheme of LTE, Sushruth Donthi, Neelesh B. Mehta, to appear in IEEE Global Communications Conf. (Globecom), Miami, FL, USA, Nov. 2010.

· Performance Analysis of Subband-Level Channel Quality Indicator Feedback Scheme of LTE, Sushruth N. Donthi and Neelesh B. Mehta, National Conference on Communications (NCC), Chennai, India, Jan. 2010.

· Macrocell-Wide Behavior of the Orthogonality Factor in WCDMA Downlinks, Neelesh B. Mehta, Andreas F. Molisch, Larry Greenstein, IEEE Trans. on Wireless Communications, Dec. 2006.

· Analysis and Results for the Orthogonality Factor in WCDMA Downlinks, Neelesh B. Mehta, L. Greenstein, T. Willis, Z. Kostic, IEEE Trans. on Wireless Communications, pp 1138-1149, Nov. 2003.

· Characterizing the Orthogonality Factor in WCDMA Downlinks, O. Awoniyi, Neelesh B. Mehta, Larry Greenstein, IEEE Trans. on Wireless Communications, Jul. 2003.

· Orthogonality Factor in WCDMA Downlinks in Urban Macrocellular Environments, Neelesh B. Mehta, Andreas F. Molisch, and Larry Greenstein, IEEE Globecom, Nov. 2005, St. Louis, USA.

· Analysis and Results for the Orthogonality Factor in WCDMA Downlinks, Neelesh B. Mehta, L. Greenstein, T. Willis, and Z. Kostic, IEEE Vehicular Technology Conf. (VTC), 2002 (Spring), Birmingham, USA.

· Some Performance Results for Downlink Shared Channel in WCDMA, X. Qiu, L.-F. Cheng, Z. Kostic, T. Willis, N. Mehta, L. Greenstein, K. Chawla, J. Whitehead, and J. Chuang, IEEE Intl. Conf. on Communications (ICC), Jun. 2002, New York, USA.

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Multi-User Diversity and Cellular System Performance Analysis

· Spectral Efficiency of Channel-Aware Schedulers in Non-identical Composite Links with Interference, J. Wu, Neelesh B. Mehta, Andreas F. Molisch, and Jin Zhang, ICC 2007, Glasgow, Scotland.

· Spectral Efficiency Analysis of Cellular Systems with Channel-Aware Schedulers, Jingxian Wu, Neelesh B. Mehta, and Jin Zhang, IEEE Globecom, Nov. 2005, St. Louis, USA.

· Fast Scheduling Diversity and Its Impact on CDMA Rake Receivers Exploiting Multipath Channel Diversity, Neelesh. B. Mehta, Zoran Kostic, and Moe Win, IEEE Vehicular Technology Conf. (VTC), 2003 (Spring), Jeju, S. Korea.

· Throughput Analysis of Link Adaptation in Interference-Limited Cellular Systems, N. B. Mehta and A. Goldsmith, IEEE Vehicular Technology Conf. (VTC), 2001 (Spring), Rhodes, Greece.

· Performance Analysis of Link Adaptation in Wireless Data Networks, Neelesh B. Mehta and Andrea Goldsmith, IEEE Globecom, Nov. 2000, San Francisco, USA.

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Miscellaneous

· Clustering of Scatterers in Mobile Radio Channels - Evaluation and Modeling in the COST259 Directional Channel Model, A. Molisch, H. Asplund, N. B. Mehta, and M. Steinbauer, IEEE Intl. Conf. on Communications (ICC), Jun. 2002, New York, USA.

· Prediction-based Techniques for Hand-off Prioritization in Channel Assignment Schemes, Neelesh B. Mehta and Andrea Goldsmith, IEEE Globecom, Nov. 1998, Sydney, Australia.

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Book chapters

· Andy Molisch, Stark Draper, Neelesh B. Mehta, Cooperative Communications for Reliability in “Reliable Communications for Short-Range Wireless Systems,” Ismail Guvenc and Zafer Sahinoglu (Ed.), Cambridge University Press, 2010, To appear.

· Neelesh B. Mehta and Andy Molisch, Antenna selection in MIMO systems, in "MIMO Antenna Technology for Wireless", George Tsulos (Ed.), CRC Press, 2006.

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Publications (By topic)