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Journal Papers under Review

K. Mohanty, C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Region for the MIMO Interference Channel with Hybrid CSIT,'' submitted, IEEE Trans. Wireless Commun., Aug. 2012. Available: http://arxiv.org/abs/1209.0047.

R. T. Krishnamachari and M. K. Varanasi, "MIMO systems with quantized covariance feedback,'' submitted, IEEE Trans. Signal Processing, Aug. 2012.

C. S. Vaze and M. K. Varanasi, "The degrees of freedom regions of two-unicast multi-hop layered MIMO interference networks with limited Shannon feedback,'' submitted, IEEE Trans. on Information Theory, July 2012.

R. T. Krishnamachari and M. K. Varanasi, "On the geometry and quantization of manifolds of positive semi-definite matrices,'' submitted, IEEE Trans. Signal Processing, July. 2012.

S. Karmakar and M. K. Varanasi, "The Diversity-Multiplexing Tradeoff of the MIMO Z Interference Channel,'' submitted, IEEE Trans. Inform. Th., June 2012. Available: http://arxiv.org/abs/1006.0496v4.

C. S. Vaze and M. K. Varanasi, "Independent signaling achieves the capacity region of the Gaussian interference channel with common information to within one bit,'' submitted, IEEE Trans. on Information Theory, Feb. 2012.

H. P. Romero and M. K. Varanasi, "Bounds on the capacity region for a class of interference channels with common information,'' submitted, IEEE Trans. on Information Theory, Dec. 2011.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Regions of Two-User and Certain Three-User MIMO Broadcast Channels with Delayed CSIT,'' submitted, IEEE Trans. on Information Theory, Dec. 2011. Available: http://arxiv.org/abs/1101.0306.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Region of the MIMO Interference Channel with Shannon Feedback,'' submitted, IEEE Trans. on Information Theory, Oct. 2011. Available: http://arxiv.org/abs/1109.5779.

S. Karmakar and M. K. Varanasi, "Capacity of the MIMO Interference Channel to Within a Constant Gap,'' submitted, IEEE Trans. on Information Theory, Apr. 2011. Available: http://arxiv.org/abs/1102.0267.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Region of the Two-User MIMO Broadcast Channel with Delayed CSI,'' submitted, Arxiv, Dec. 2010. Available: http://arxiv.org/abs/1101.0306.

R. T. Krishnamachari and M. K. Varanasi, "Interference Alignment Under Limited Feedback for MIMO Interference Channels,'' submitted, IEEE Trans. Signal Processing, Jun. 2012. Available: http://arxiv.org/abs/0911.5509.

 

Journal Papers under Review

Upcoming Conference Publications

Journal Publications

Recent Conference Publications

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Upcoming Conference Publications

M. K. Varanasi (with C. S. Vaze), "Retro-cooperative interference alignment and the DoF Region of the (M;N)^3 interference network with limited Shannon feedback ," Proc. Information Theory and ApplicationsWorkshop, UCSD, San Diego, CA (invited), Feb. 5-10, 2012.

M. K. Varanasi (with S. Karmakar), "The Generalized Multiplexing Gain Region of the Slow Fading MIMO Interference Channel and its Achievability with Limited Feedback," ISIT 2012, Boston, MA, Jul 2012.

 

Journal Papers under Review

Upcoming Conference Publications

Journal Publications

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Journal Publications

S. Karmakar and M. K. Varanasi, "The Diversity-Multiplexing-Tradeoff of the MIMO Half-Duplex Relay Channel," in print, IEEE Trans. on Information Theory Available: http://arxiv.org/abs/1106.6323.

S. Karmakar and M. K. Varanasi, "The Generalized Degrees of Freedom Region of the MIMO Interference Channel," in print, IEEE Trans. on Information Theory Available: http://arxiv.org/abs/1103.2560.

C. S. Vaze, M. K. Varanasi, "A New Outer-Bound via Interference Localization and the Degrees of Freedom Regions of MIMO Interference Networks with no CSIT," in print, IEEE Trans. on Information Theory Available: http://arxiv.org/abs/1105.6033.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Regions of MIMO Broadcast, Interference, and Cognitive Radio Channels with No CSIT," IEEE Trans. Inform. Th.,  Vol. 58, No. 8, Aug. 2012, pp. 5354 - 5374. Available: http://arxiv.org/abs/0909.5424.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Region and Interference Alignment for the MIMO Interference Channel with Delayed CSIT," IEEE Trans. Inform. Th.,  Vol. 58, No. 7, Jul. 2012, pp: 4396 - 4417. Available: http://arxiv.org/abs/1101.5809.

S. Karmakar and M. K. Varanasi, "Diversity-Multiplexing Tradeoff of the Dynamic Decode-and-Forward Protocol for the MIMO Half-Duplex Relay Channel," IEEE Trans. Inform. Th.,  Vol. 57, No. 10, Oct. 2011, pp. 6569 - 6590, Available: http://arxiv.org/abs/1008.1455.

Y. Jiang, M. K. Varanasi and J. Li "Performance Analysis of ZF and MMSE Equalizers for MIMO Systems: An In-Depth Study of the High SNR Regime," IEEE Trans. Inform. Th.,  Vol. 57, No. 4, Apr. 2011, pp. 2008-2026.

N. Prasad and M. K. Varanasi, "High Performance Static and Dynamic Cooperative Communication Protocols for the Half Duplex Fading Relay Channel," IEEE Trans. Wireless Commun.,  Vol. 9, No. 1, Jan. 2010, pp. 328 - 337.

Y. Jiang and M. K. Varanasi, "The RF-Chain Limited MIMO System: Part I Optimum Diversity-Multiplexing Tradeoff," IEEE Trans. Wireless Commun.,  Vol. 8, No. 10, Oct. 2009, pp.5238-5247.

S. Srinivasan and M. K. Varanasi, "Optimal constellations for the low SNR noncoherent MIMO Rayleigh fading channel," IEEE Trans. Inform Th.,  Vol. 55, Feb. 2009, pp. 776-796.

N. Prasad and M. K. Varanasi, "An optimization approach to decision feedback detection under modulation constraints for MIMO Rayleigh fading channels," IEEE Trans. Wireless Commun.,  Vol. 7, No. 9, Dec. 2008.

N. Prasad, M. K. Varanasi, L. Venturino and X. Wang, "An Analysis of the MIMO-SDMA Channel with Space-Time Orthogonal and Quasi-Orthogonal User Transmissions and Efficient Successive Cancellation Decoders," IEEE Trans. Inform Th.,  Vol. 54, No. 11, Dec. 2008, pp. 5427-5446.

N. Prasad, G. Yue, X. Wang and M. Varanasi, "Optimum Successive Group Decoders for MIMO Multiple-Access Channels," IEEE Trans. Inform. Th.,  Vol. 54, No. 10, Oct. 2008, pp. 4821 - 4846.

P. Dayal and M. K. Varanasi, "Distributed QAM-Based Space-Time Block Codes for Efficient Cooperative Multiple-Access Communication," IEEE Trans. Inform Th.,  Vol. 54, No. 9, Sept. 2008 pp. 4342-4354.

Y. Jiang and M. K. Varanasi, "Spatial multiplexing architectures with jointly designed rate-tailoring and ordered BLAST decoding Part II: A practical method for rate and power allocation," IEEE Trans. Wireless Commun.,  Vol. 7, No. 8, Aug. 2008 pp. 3262-3271.

Y. Jiang and M. K. Varanasi, "Spatial multiplexing architectures with jointly designed rate-tailoring and ordered BLAST decoding Part I: Diversity-multiplexing trade-off analysis," IEEE Trans. Wireless Commun.,  Vol. 7, No. 8, Aug. 2008 pp. 3252 - 3261.

D. R. Grant and M. K. Varanasi, "The Equivalence of Space-Time Codes and Codes defined over Finite Fields and Galois Rings," Advances in Mathematics of Communications (AMC) (an American Institute of Mathematical Sciences (AIMS) Journal),  Vol. 2, No. 2, May, 2008 pp. 131-145.

N. Prasad and M. K. Varanasi, "Analysis and optimization of diagonally layered lattice schemes for MIMO fading channels,'' IEEE Trans. Info. Theory,  Vol. 54, No. 3, Mar. 2008, pp. 1162-1185.

D. R. Grant and M. K. Varanasi, "Duality theory for space-time codes over finite fields," Advances in Mathematics of Communications (AMC) (an American Institute of Mathematical Sciences (AIMS) Journal),  Vol. 2, No. 1, Feb. 2008, pp. 35-54.

N. Prasad and M. K. Varanasi, "Analysis and optimization of diagonally layered lattice codes for MIMO Rayleigh fading channels,'' in print, IEEE Trans. Info. Theory,  Vol. 53, 2007.

S. G. Srinivasan and M. K. Varanasi, "Optimal spatial correlations for the noncoherent MIMO Rayleigh fading channel'', IEEE Trans. Wireless Comm., Vol. 6, No. 10, Oct 2007.

D. Das and M. K. Varanasi, "Blind algorithms for joint optimization for multiuser receivers and power control," IEEE Trans. Wireless Comm.,  Vol. 6, No. 8, Aug. 2007.

A. Kapur, M. K. Varanasi and C. T. Mullis, "Bandwidth Efficient Signal Design for QoS Constrained CDMA Systems", IEEE Trans. Wireless Comm.,  Vol. 6, No. 8, Aug 2007.

S. G. Srinivasan and M. K. Varanasi, "Constellation Design for the Noncoherent MIMO Rayleigh Fading Channel at General SNR'', IEEE Trans. Inform Th., Vol. 53, No. 4, April 2007 pp. 1572-1584.

N. Prasad and M. K. Varanasi, "Outage Theorems for MIMO Block Fading Channels,'' revised Aug 2006, revised April 2006, (submitted May 2005), IEEE Trans. Inform. Th., vol. 52, No. 12, Dec. 2006.

M. K. Varanasi,  A. Kapur and C.T. Mullis, "On the Limitation of Linear MMSE Detection,'' IEEE Trans. Inform. Th., vol. 52, No. 9, Sept. 2006.

M. K. Varanasi and P. Dayal, "Unified Multi-Antenna Code Design for Fading Channels with Spatio-Temporal/Spectral Correlations,'' IEEE Trans Wireless Comm., Vol. 5, No. 8, Aug. 2006.

P Dayal and M. K. Varanasi "An algebraic family of complex lattices for fading channels with application to space-time codes," IEEE Trans. Info. Theory, vol. 51, No. 12,  4184-4202 Dec. 2005.

P. Dayal and M. K. Varanasi "An optimal two transmit antenna space-time code and its stacked extensions," IEEE Trans. Info. Theory, vol. 51, No. 12, 4348-4355 Dec. 2005.

A. Kapur,  M. K. Varanasi and C.T. Mullis, "On the Limitation of Generalized Welch Bound Equality Signals,'' IEEE Trans. Info. Theory, vol. 51, No. 5, 2220-2224 Jun. 2005.

P. Dayal and M. K. Varanasi, "Maximal Diversity Algebraic Space-Time Codes with Low Peak-to-Mean Power Ratio" , IEEE Trans. Inform. Th.,  May. 2005.

T. Guess and M. K. Varanasi, "An Information-Theoretic Framework for Deriving Canonical Decision-Feedback Receivers in Gaussian Channels", IEEE Trans. Information Theory, Vol. 51, No. 1, Jan. 2005.

D. Das and M.K. Varanasi, "Optimum Noncoherent Multiuser Decision Feedback Detection",  IEEE Trans. Inform. Th., Vol. 50, No. 9, Sept. 2004.

P. Dayal,  M. Brehler and M.K. Varanasi,  "Leveraging Coherent Space-Time Codes for Noncoherent Communication via Training," IEEE Trans. Inform. Th., Vol. 50, No. 9, Sept. 2004.

F. Bandiera, G. Ricci and M. K. Varanasi, "Blind Multiuser Detection Over Highly Dispersive CDMA Channels," IEEE Trans. Commun.,  Vol. 52, No. 8,   August  2004.

N. Prasad and M. K. Varanasi, "Analysis of Decision Feedback Detection for MIMO Rayleigh-Fading Channels and the Optimization of Power and Rate Allocations" , IEEE Trans. Inform. Th., vol. 50, No. 6, June., 2004, pp. 1009-1025.

M. Brehler and M. K. Varanasi, "Optimum Multiuser Noncoherent DPSK Detection in Generalized Diversity Rayleigh Fading Channels," IEEE Trans. Inform. Th.,  vol. 49. No. 6, Jun., 2003, pp 1565--1574.

A. Kapur and M. K. Varanasi, "Multiuser Detection for Overloaded CDMA Systems," IEEE Trans. Inform. Th., vol 49, No. 7, Jul., 2003, pp 1728--1742.

T. Guess and M. K. Varanasi, "A Comparison of Bandwidth-Efficient Multiple Access to Other Signal Designs for Correlated Waveform Multiple-Access Communications," IEEE Trans. Inform. Th., vol. 49, No. 6, Jun., 2003, pp 1558--1564.

M. Brehler and M. K. Varanasi, " Optimum Receivers and Low-Dimensional Spreaded Modulation for Multiuser Space-Time Communications,"   IEEE Trans. Inform. Th., vol. 49, No. 4, Apr., 2003, pp 901--918.

M. L. McCloud, L. L. Scharf and M. K. Varanasi, " Beamforming, Diversity, and Interference Rejection for Multiuser Communication Over Fading Channels With a Receive Antenna Array," IEEE Trans. Commun., vol. 51, No.1, Jan., 2003, pp. 116-124.

A. Russ and M. K. Varanasi "An Error Probability Analysis of the Optimum Noncoherent Multiuser Detector for Multipath and Multi-Antenna Diversity Communications over Rayleigh Fading Channels," IEEE Trans. Com., vol. 50, No. 11, Nov., 2002, pp. 1828-1840.

M. K. Varanasi and D. Das "Fast Stochastic Power Control Algorithms for Nonlinear Multiuser Receivers," IEEE Trans. Com., vol. 50, No. 11, Nov., 2002, pp. 1817-1827.

G. Ricci, M. K. Varanasi and A. De Maio, "Blind Multiuser Detection via Interference Identification,"   IEEE Trans. Commun., vol. 50, No. 7, Jul., 2002, pp. 1172-1181.

M. L. McCloud, M. Brehler, and M. K. Varanasi, "Signal Design and Convolutional Coding for Space-Time Communication on the Rayleigh Fading Channel," IEEE Trans. Inform. Th., 48:5, pp. 1186-1194, May. 2002.

A. Kapur, M. K. Varanasi and D. Das "Noncoherent MMSE Multiuser Receivers and Their Blind Adaptive Implementations" , IEEE Trans. Commun., vol. 50, No. 3, Mar., 2002, pp. 503-513.

D. Das and M. K. Varanasi, "Blind Adaptive Multiuser Detection for Cellular Systems Using Stochastic Approximation With Averaging,", IEEE Journal of Selected Areas in Commun., Vol. 20, No. 2, Feb. 2002, pp. 310-319.

M. L. McCloud and M. K. Varanasi, "Modulation and Coding for Noncoherent Communications" , Journ. VLSI Signal Processing, 30,  Jan., 2002, pp. 35-54.

M. Brehler and M. K. Varanasi, "Asymptotic Error Probability Analysis of Quadratic Receivers in Rayleigh Fading Channels with Applications to a Unified Analysis of Coherent and Noncoherent Space-Time Receivers,", IEEE Trans. Inform. Th., vol. 47, No. 6, Sept., 2001, pp. 2383-2399.

E. Fain and M. K. Varanasi, "Group-Metric Multiuser Decoding,", IEEE Trans. Commun., .vol. 49, No. 6, June, 2001, pp. 1021-1032.

M. K. Varanasi and T. Guess, "Bandwidth-Efficient Multiple-Access (BEMA): A New Strategy Based on Signal Design for Multiuser Receivers Under Quality-of-Service Constraints," IEEE Trans. Commun., vol. 49, No. 5, May, 2001, pp. 844-854.

A. Russ and M. K. Varanasi "Noncoherent Multiuser Detection for Nonlinear Modulation Over the Rayleigh Fading Channel," IEEE Trans. Inform. Th., 47:1, Jan. 2001.

D. Das and M. K. Varanasi, "Blind Adaptive Noncoherent Multiuser Detection for Nonlinear Modulation," IEEE Trans. on Commun., 48:11, Nov. 2000.

T. Guess and M. K. Varanasi, "Signal Design for Bandwidth Efficient Multiple-Access Communications Based on Eigenvalue Optimization," IEEE Trans. Inform. Th., 46:6, pp. 2045-2058, Sept. 2000.

T. Guess and M. K. Varanasi, "Error Exponents for Maximum-Likelihood and Successive Decoders for the Gaussian CDMA Channel," IEEE Trans. Information Theory, 46:4, Jul. 2000, pp 1683-1690.

E. A. Fain and M. K. Varanasi, "Diversity Order Gain for Narrowband Multiuser Communications with Pre-Combining Group Detection," IEEE Trans. Commun., 48:4, Apr. 2000, pp. 533-536.

M. K. Varanasi and D. Das, "Noncoherent Decision Feedback Multiuser Detection for Nonlinear Modulation," IEEE Trans. on Commun., 48:2, Feb. 2000, pp. 259-269.

M. K. Varanasi, "A Systematic Approach to the Design and Analysis of Optimum DPSK Receivers for Generalized Diversity Communications over Rayleigh Fading Channels," IEEE Trans. on Commun., vol. 47, No. 9, Sept. 1999, pp 1365-1375

M. K. Varanasi, "Decision Feedback Multiuser Detection: A systematic Approach,"  IEEE Trans. on Inform. Theory.,  vol. 45, No. 1, Jan. 1999, pp. 219-240.

M. K. Varanasi and A. Russ, "Noncoherent Decorrelative Detection for Nonorthogonal Multipulse Modulation Over the Multiuser Gaussian Channel,"  IEEE Trans. on Commun., vol. 46, No. 12, Dec. 1998, pp. 1675-1684.

S. Vasudevan and M. K. Varanasi, "Achieving Near-Optimum Asymptotic Efficiency and Fading Resistance over Time-Varying Rayleigh Fading CDMA Channels," IEEE Trans Commun., 44:9, (September 1996), pp. 1130-1143.

D. Parsavand and M. K. Varanasi, "RMS Bandwidth Constrained Signature Waveforms that Maximize the Total Capacity of PAM-Synchronous CDMA Channels," IEEE Trans Commun., COM-44:1, (January 1996), pp. 65-75.

M. K. Varanasi, "Parallel Group Detection for Synchronous CDMA Communication Over Frequency-Selective Rayleigh Fading Channels," IEEE Trans Inform Th., 42:1, (January 1996).

M. K. Varanasi, "Group Detection for Synchronous Gaussian Code-Division Multiple-Access Channels," IEEE Trans Inform Th, 41:4 (July 1995), pp. 1083-1096.

S. Vasudevan and M. K. Varanasi, "Optimum Diversity Combiner Based Multiuser Detection for Time-Dispersive Rician Fading CDMA Channels," the special issue on Code Division Multiple-Access Networks of the IEEE Journal of Selected Areas in Commun., JSAC-12:4, (May 1994), pp. 580-592.

M. K. Varanasi and S Vasudevan, "Multiuser Detectors for Synchronous CDMA Communication over Nonselective Rician Fading Channels," IEEE Trans Commun, COM-42:2, (February 1994), pp. 711--722.

M. K. Varanasi, "Noncoherent Detection in Asynchronous Multiuser Channels," IEEE Trans Inform Th 39:1 (January 1993), pp. 157--176.

M. K. Varanasi and B. Aazhang, "Optimally Near-Far Resistant Multiuser Detection in Differentially Coherent Synchronous Channels", IEEE Trans Inform Th., 37:4 (July 1991), pp. 1006-1018.

Journal Papers under Review

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Recent Conference Publications

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom of the 2󫎾 Interference Network with Delayed CSIT and with Limited Shannon Feedback," Proc. 49th Allerton Conf. Commun. Cntrl. Comput. Sept. 2011.

C. S. Vaze and M. K. Varanasi, "Can Feedback Increase the Degrees of Freedom of a Wireless Network with Delayed CSIT?" Proc. 49th Allerton Conf. Commun. Cntrl. Comput. Sept. 2011.

S. Karmakar and M. K. Varanasi, "Capacity of the MIMO Interference Channel to Within a Constant Gap," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

C. S. Vaze and M. K. Varanasi, "The Capacity Region of the Symmetric Gaussian Interference Channel with Common Information within a Constant Gap," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

C. S. Vaze and M. K. Varanasi, "The Degrees of Freedom Region of the Two-User MIMO Broadcast Channel with Delayed CSI," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

C. S. Vaze and M. K. Varanasi, "On Completing the Degrees of Freedom Characterization of MIMO Interference Networks with No CSIT," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

R. T. Krishnamachari and M. K. Varanasi, "MIMO Performance under Covariance Matrix Feedback," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

S. Karmakar and M. K. Varanasi, "The Generalized Degrees of Freedom of the MIMO Interference Channel," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

C. S. Vaze and M. K. Varanasi, "On the Degrees of Freedom Region of the MIMO Interference Channel with Delayed CSI," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

C. S. Vaze, S. Karmakar and M. K. Varanasi, "On the Generalized Degrees of Freedom Region of the MIMO Interference Channel with No CSIT," Proc. IEEE Intnl. Symp. Inform. Th., St. Petersberg, Russia, Aug. 2011.

R. T. Krishnamachari and M. K. Varanasi, "Interference Alignment Under Limited Feedback for MIMO Interference Channels," IEEE ISIT, Austin, TX, Jun. 2010, pp. 522 - 526.

R. T. Krishnamachari and M. K. Varanasi, "Finite-Rate Feedback of Input Covariance Matrices in MIMO Systems" IEEE ISIT, Austin, TX. Jun. 2010, pp. 2343 - 2347.

S. Karmakar and M. K. Varanasi, "Generalized Degrees of Freedom of the MIMO 2-User Interference Channel with and without CSIT," IEEE ISIT, Austin, TX. Jun. 2010.

S. Karmakar and M. K. Varanasi, "On the Diversity-Multiplexing Tradeoff of the MIMO Z Interference Channel," IEEE ISIT, Austin, TX, Jun. 2010.

S. Karmakar and M. K. Varanasi, "The Diversity-Multiplexing Tradeoff of the symmetric MIMO 2-User Interference Channel," Proc. IEEE ISIT, Austin, TX, Jun. 2010, pp. 2213 - 2217.

S. Karmakar and M. K. Varanasi, "The Diversity-Multiplexing-Tradeoff of the Symmetric MIMO Half-Duplex Relay Channel," IEEE ISIT, Austin, TX, Jun. 2010, pp. 2178 - 2182.

C. S. Vaze and M. K. Varanasi, " The Degrees of Freedom Region of the MIMO Cognitive Interference Channel with No CSIT," IEEE ISIT, Austin, TX, Jun. 2010, pp. 440-444.

C. S. Vaze and M. K. Varanasi, " CSI feedback scaling rate vs multiplexing gain tradeoff for DPC-based transmission in the Gaussian MIMO broadcast channel," IEEE ISIT, Austin, TX, Jun. 2010, pp. 2353 - 2357.

M. Garg and M. K. Varanasi, "Diversity-multiplexing-tradeoff-optimal 2-user scheduling in an M-user Gaussian multiple-access channel," IEEE ISIT, Austin, TX, Jun. 2010, pp. 2198 - 2202.

C. S. Vaze and M. K. Varanasi, " A large-system analysis of the imperfect-CSIT Gaussian broadcast channel with a DPC-based transmission strategy," 44th Annual Conference on Information Sciences and Systems (CISS), 17-19 March 2010, pg. 1-5.

S. Karmakar and M. K. Varanasi, " Diversity-Multiplexing-Delay Tradeoff of a DDF Protocol on a Half-Duplex ARQ Relay Channel," Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Oct. 2009.

S. Karmakar and M. K. Varanasi, " Optimal DMT of Dynamic Decode-and-Forward Protocol on a Half-Duplex Relay Channel With Arbitrary Number of Antennas at Each Node," Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Oct. 2009.

C. S. Vaze and M. K. Varanasi, " Dirty Paper Coding for the MIMO Cognitive Radio Channel with Imperfect CSIT," Proc. IEEE Intnl. Symp. Inform. Th., Seoul, S. Korea, June, 2009, pp. 2532-2536.

S. Karmakar and M. K. Varanasi, " Diversity multiplexing gain tradeoff of the dynamic decode and forward protocol on a MIMO half-duplex relay channel", Proc. IEEE Intnl. Symp. Inform. Th., Seoul, S. Korea, June, 2009, pp 1443-1447.

R. T. Krishnamachari and M. K. Varanasi " Distortion-Rate Tradeoff of a Source Uniformly Distributed over the Composite ${\cal P}_{\mathbb F}(N)$ and the Composite Stiefel Manifolds," Proc. IEEE Intnl. Symp. Inform. Th., Seoul, S. Korea, June, 2009, pp 522-526.

C. S. Vaze and M. K. Varanasi, " On the achievable rate of the fading dirty paper channel with imperfect CSIT," Proc. 43rd Annual Conf. Inform. Sc \& Systems (CISS'09), Johns Hopkins Univ. Baltimore, MD, March 2009.

M. Garg and M. K. Varanasi, "On the diversity-multiplexing tradeoff of the Gaussian MIMO broadcast channel," Proc. 43rd Annual Conf. Inform. Sc \& Systems (CISS'09), Johns Hopkins Univ. Baltimore, MD, March 2009.

S. Karmakar and M. K. Varanasi, "On the rate versus ML-decoding complexity tradeoff of square LDSTBCs with unitary weight matrices," Global Telecommunications Conference, IEEE GLOBECOM '08, New Orleans, LA, Nov-Dec. 2008.

R. T. Krishnamachari and M. K. Varanasi "Distortion-Rate Tradeoff of a Source Uniformly Distributed over Positive Semi-Definite Matrices," Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Oct. 2008.

C. S. Vaze and M. K. Varanasi "Dirty Paper Coding for Fading Channels with Partial Transmitter Side Information," Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Oct. 2008.

R. T. Krishnamachari and M. K. Varanasi "Volume of Geodesic Balls in the Complex Stiefel Manifold" Proc. 46th Annual Allerton Conf. on Commun., Control, and Comput., Allerton. IL, Sept. 2008.

M. Garg and M. K. Varanasi, "The parallel channel with ordered gains: a high SNR analysis," Proc. IEEE Intnl. Symp. Inform. Th., Toronto, Canada, Jul., 2008, pp. 2568 - 2572.

Y. Liu, M. K. Varanasi and H. Xinming, "Power Scheduling for MIMO Relay Channels Employing Rateless Codes," Proc. IEEE International Conference on Communications (ICC '08) May 19-23, 2008 Pp. 4431 - 4435.

R. T. Krishnamachari and M. K. Varanasi "Volume of Small Balls in the Real Stiefel Manifold," Proc. 42nd Annual Conf. Inform. Sc \& Systems (CISS'08), Princeton Univ. Princeton, NJ, March 2008, pp. 402 - 406.

M. Garg and M. K. Varanasi, "The optimality of D-BLAST-ZF with antenna order feedback without or with antenna selection," Proc. 42nd Annual Conf. Inform. Sc \& Systems (CISS'08), Princeton Univ. Princeton, NJ, March 2008, pp. 1120 - 1124.

S. G. Srinivasan and M. K. Varanasi, "Optimal Noncoherent MIMO-OFDM Constellations at Low SNR" Annual Asilomar Conf. on Signals, Systems and Computers, Nov 2007.

Y. Jiang and M. K. Varanasi, "Extended Uniform Channel Decomposition for MIMO Communications with Intersymbol Interference" Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Nov 2007.

Y. Jiang and M. K. Varanasi, "Decision Feedback Based Transceiver Optimization for MIMO Inter-Symbol Interference Channels" Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Nov 2007.

H. Venkatachari and M. K. Varanasi, "Maximizing mutual information in general MIMO fading AWGN channels under a rank constraint," Proc. Annual Asilomar Conf. on Signals, Systems and Computers, Nov 2007.

S. G. Srinivasan and M. K. Varanasi, "Mutual Information Optimal Constellations for the Low SNR Noncoherent MIMO Rayleigh Fading Channel'', Proc. IEEE Intnl Symp. Inform Th. (ISIT'07), Nice, France, June 2007.

Y. Jiang and M. K. Varanasi, "Diversity-Multiplexing Tradeoff of MIMO Systems with Antenna Selection," Proc. IEEE Intnl Symp. Inform Th. (ISIT'07), Nice, France, June 2007.

Yi Jiang and Mahesh K. Varanasi, "The effect of ordered detection and antenna selection on diversity gain of decision feedback detector," Proc. IEEE Intnl Conf. Commun. Glasglow, Scotland, Jun. 2007.

Y. Jiang and M. K. Varanasi, "Precoder optimization for nonlinear MIMO transceiver for arbitrary cost function," Proc. Conf Inform. Sc \& Systems (CISS'07), Johns Hopkins Univ, Baltimore, MD, Mar 2007.

Y. Liu, B. Xu and M. K. Varanasi, "On Discrete Memoryless Relay Channels with Designable Transmitter Side Information," Proc Conf. Inform. Sc. Systems, Johns Hopkins Univ., Balitmore, MD, March 2007.

H. Venkatachari and M. K. Varanasi, "Optimum signature sequences that maximize sum capacity in fading CDMA channels," Proc. Conf. Inform. Sc. & Systems (CISS'07), Johns Hopkins Univ. Baltimore, MD, March 2007.

S. G. Srinivasan and M. K. Varanasi "STORM : Optimal Constellations for the Low SNR Noncoherent MIMO Fading Channel" Proc. 44th Annual Allerton Conf. Communications, Control and Computing, Monticello, IL, Sept. 2006.

S. G. Srinivasan and M. K. Varanasi, "Constellation Design for the Noncoherent MIMO Rayleigh Fading Channel at General SNR,'' Proc. IEEE Intnl Symp. Inform. Th., Seattle, WA. Jul. 2006.

N. Prasad and M. K. Varanasi, "MIMO Throughput in the High SNR Regime,'' Proc. IEEE Intnl Symp. Inform. Th., Seattle, WA. Jul. 2006.

D. Grant and M. K. Varanasi,  "Non-associative division algebras and space-time code construction," Sequences and Codes, IRMACS, Simon Fraser University, Vancouver, BC Canada, July, 2006 (Invited talk).

D. Grant and M. K. Varanasi, "Number Theoretic Aspects of Space-Time Codes" American Mathematical Society (AMS) Meeting, San
Francisco, CA, July, 2006.

M. K. Varanasi and N. Prasad, "High-Performance Cooperative Communication Protocols for the Half-Duplex Channel," IEEE Communication Theory Workshop, Puerto Rico, May, 2006 (Invited talk).

Y. Jiang and M. K. Varanasi, "A novel spatial multiplexing architecture with finite rate feedback," Proc. 40th Annual Conf. Inform. Sciences and Systems, Princeton Univ., Princeton, NJ Mar 2006.

P. Vajapeyazula and M. K. Varanasi, "The Simple Relay Channel: Optimum Resource Allocation and Capacity", Annual Asilomar Conf. on
Signals, Systems and Computers, Nov 2005.

N. Prasad, M. K. Varanasi, "Outage Theorems for MIMO Channels," Proc. 43rd Annual Allerton Conf. Communications, Control and
Computing, Monticello, IL, Oct 2005.

D. Grant and M. K. Varanasi, "Duality theory for space-time codes over finite fields," Americal Mathematical Society Meeting, Lincoln, Nebraska, Oct 2005 (Invited).

D. Grant and M. K. Varanasi, "Weight enumerators and a McWilliams-type identity for finite rank space-time codes over finite fields,'' Proc. Annual Allerton Conf Communication, Control and Computing, Monticello, IL, Oct 2005.

 S. G. Srinivasan and M. K. Varanasi, "Code Design for the Low SNR Noncoherent MIMO Block Rayleigh Fading Channel,'' IEEE Intnl Symp. Inform. Th., Adelaide, Australia, Page(s):2218 - 2222 Sept. 2005.

N. Prasad and M. K. Varanasi, "MIMO Outage Capacity in the High SNR Regime,'' IEEE Intnl Symp. Inform. Th., Adelaide, Australia,
Page(s):656 - 660 Sept. 2005.

M. K. Varanasi and N. Prasad, "MIMO Outage Capacity in the High SNR Regime," IEEE Communication Theory Workshop, Utah, Jun. 2005
(invited talk).

P. Dayal and M. K. Varanasi, "Generalized Multiuser QAM based Cooperation Strategy and an Optimal Two-User Scheme," 2005
International Conference on Wireless Networks, Communications and Mobile Computing,  Volume 2, 13-16 Maui, Hawaii, June 2005 Page(s):1430 - 1435 (Invited).

S. G. Srinivasan  and M. K. Varanasi, "Constellation Design with Unequal Priors and New Distance Criteria for the Low SNR Noncoherent Rayleigh Fading Channel",  Conf. on Information Sciences and Systems., The Johns Hopkins University, Baltimore, MD, Mar. 2005.

P. Dayal  and M. K. Varanasi, "Diversity-multiplexing tradeoff for QAM based Multiuser Cooperation Strategies",  Conf. on Information Sciences and Systems., The Johns Hopkins University, Baltimore, MD, Mar. 2005.

N. Prasad and M. K. Varanasi, "Bounds on Error Probabilities for the Block Fading Channel", Proc. Asilomar Conf. on Signals, Systems and Computers, Monterey, CA, Nov. 2004

P. Dayal and M. K. Varanasi, "Unified Multi-Antenna Code Design for Fading Channels with Spatio-Temporal Correlations", Proc. Asilomar Conf. on Signals, Systems and Computers, Monterey, CA, Nov. 2004

P. Dayal and M. K. Varanasi, "Efficient Multiuser Cooperation Strategies Using QAM Space-Time Block Codes," Proc. IEEE Inform. Th. Workshop, San Antonio, Texas, Oct. 24-29, 2004.

N. Prasad and M. K. Varanasi, "Outage Capacities of Space-Time Architectures," Proc. IEEE Inform. Th. Workshop, San Antonio, Texas, Oct. 24-29, 2004.

F. Bandiera, G. Ricci and M. K. Varanasi, "Blind Multiuser Detection for a Multi Satellite DS/CDMA System", Proc. of 5th IEEE Workshop on Signal Proc. Advances in Wireless Communications, Lisbon, Portugal, July 11-14 2004.

P. Dayal, S.G. Srinivasan, and M. K. Varanasi, "Diversity Order Analysis of Training Codes for MIMO Block Fading Channels"   IEEE International Symposium on Information Theory (ISIT'2004), Chicago, IL, June 2004.

N. Prasad and M. K. Varanasi, "Diversity and Multiplexing Tradeoff Bounds for Cooperative Diversity Protocols," Proc. IEEE Intl. Symposium on Inform. Theory, Chicago, IL, June. 2004

M.L. McCloud and M. K. Varanasi, "Time Limited and Bandwidth Constrained Signal Design for the Fast Fading Noncoherent MIMO Channel", Proc of the IEEE Intnl Comm. Conf, Paris, France, June 2004.

A. Kapur, M. K. Varanasi and C.T. Mullis, "On the Limitation of Generalized Welch-Bound Equality Signals",  38th Annual Conf. Inform. Sciences and Systems, Princeton University, March 2004.

N. Prasad and M. K. Varanasi, "Outage Analysis and Optimization of a Stacked Orthogonal Space-Time Architecture and Near-Outage Codes," Proc. Commun. Th. Symp., IEEE GLOBECOM, San Francisco, CA, Dec. 2003.

P. Dayal and M. K. Varanasi, "Algebraic Space-Time Codes with Full Diversity and Low Peak-To-Mean Power Ratio", Proc. Commun. Th. Symp., IEEE GLOBECOM, San Francisco, CA, Dec. 2003.

P. Dayal and M. K. Varanasi, "An Optimal Two Transmit Antenna Space-Time Code and its Stacked Extensions", Proc. Asilomar Conf. on Signals, Systems and Computers, Monterey, CA, Nov. 2003

P. Dayal  and M. K. Varanasi, "A Fast Generalized Sphere Decoder for Optimum Decoding of Under-determined MIMO systems", 41st Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Oct., 2003.

N. Prasad and M. K. Varanasi, "Outage Analysis and Optimization for Multiaccess/V-BLAST Architecture over MIMO Rayleigh Fading Channels", 41st Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Oct., 2003.

A. Kapur and M. K. Varanasi, "On Maximizing Symmetric Capacity via Signal Design in CDMA Systems,"Proc. IEEE Intl. Symposium on Inform. Theory, Yokohoma, Japan, Jul. 2003.

A. Kapur and M. K. Varanasi, "Signal Design for Bandwidth Efficient Multiple-Access  under the Asymptotic Effective Energy Criterion," Proc. IEEE Intl. Conf. on Communications (ICC'03), Anchorage, Alaska, USA, May  2003.

A. Kapur and M. K. Varanasi, "Improved Signal Design for Bandwidth Efficient Multiple Access," Proc. IEEE Inform. Th. Workshop, Paris, France, Apr.,  2003.

A. Kapur and M. K. Varanasi, "On the Limitation of Linear MMSE Detection and (Generalized) Welch Bound Equality Signals,"37th Annual Conf. Inform. Sciences and Systems, Johns Hopkins University, March 2003.

M. Brehler and M. K. Varanasi, "Training-Codes for the Noncoherent Multi-Antenna Block-Rayleigh-Fading Channel," Proc of the Conf. Inform. Sciences and Systems, Johns Hopkins University, March 2003.

N. Prasad and M. K. Varanasi, "Optimizing the Performance of D-BLAST Lattice Codes for MIMO Fading Channels", Proc. IEEE Intl. Conf. Personal Wireless Communications (ICPWC'02), New-Delhi, India, Dec. 2002.

P. Dayal  and M. K. Varanasi, "An Improved Algebraic Family of Complex Lattices for Rayleigh Fading Channels with Application to Universal Space-Time Codes", 40th Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Oct., 2002.

N. Prasad and M. K. Varanasi, "D-BLAST Lattice Codes for MIMO Block Rayleigh Fading Channels", 40th Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Oct., 2002.

N. Prasad and M. K. Varanasi, "Decision Feedback Detection Using Modulation Constraints for MIMO Rayleigh Fading Channels," Proc. IEEE Intl. Symposium on Inform. Theory, Lausanne, Switzerland, Jul. 2002

M. Brehler and M. K. Varanasi, "Spectrally Efficient Multiuser Space-Time Modulation," Proc. IEEE Intl. Symposium on Inform. Theory, Lausanne, Switzerland, Jul. 2002

N. Prasad and M. K. Varanasi, "Optimum Efficiently Decodable Layered Space-Time Block Codes", Proc. Asilomar Conf. on Signals, Systems and Computers, Monterey, CA, Nov. 2001

N. Prasad and M. K. Varanasi, "Analysis of Decision Feedback Detection for MIMO Rayleigh Fading Channels and Optimum Allocation.of Transmitter Powers and QAM Constellations", 39th Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Oct., 2001.

A. Kapur and M. K. Varanasi, "On Multiuser Detection for Low-Rank CDMA Systems," 39th Annual Allerton Conference on Comm., Control and Comput., Monticello, IL, Oct. 2001.

M. Brehler and M. K. Varanasi, "Low-Dimensional Spreading Matrices for Multiuser Space-Time Modulation," Proc. of the IEEE Inform. Th. Workshop, Cairns, Australia, Sept. 2001.

M. L. McCloud, Artur Russ, Louis L Scharf, and M. K. Varanasi, "Noncoherent Multi-user Detection with Antenna Arrays Over Fading Channels", Proc of the Conf. Inform. Sciences and Systems, Johns Hopkins University, March 2001.

M. Brehler and M. K. Varanasi, "Coherent Multiuser Space-Time Communications: Optimum Receiver and Signal Design," Proc of the Conf. Inform. Sciences and Systems, Johns Hopkins University, March 2001.

M. Brehler and M. K. Varanasi, "Noncoherent Multiuser Space-Time Communications: Optimum Receiver and Signal Design," Proc of the Conf. Inform. Sciences and Systems, Johns Hopkins University, March 2001.

D. Das and M. K. Varanasi, "Stochastic Power Control with Averaging," Proc. IEEE Intl. Conf. Personal Wireless Communications (ICPWC'00), Hyderabad, India, Dec. 2000.

M. K. Varanasi and A. Russ, "Optimum Noncoherent Multiuser Detection for Multi-Antenna Diversity Communications over Rayleigh Fading Channels," Proc. Asilomar Conf. on Signals, Systems and Computers, Monterey, CA, Nov. 2000 (invited talk).

M. Brehler and M. K. Varanasi, "Optimum Noncoherent Multiuser Detection for DPSK Modulation in Generalized Diversity Rayleigh Fading Channels: An Asymptotic Minimum Error Probability Analysis," Proc. Commun. Th. Mini-Conf., IEEE GLOBECOM, San Francisco, CA, Nov. 2000.

D. Das and M. K. Varanasi, "Blind Algorithms for Joint Optimization of Multiuser Receivers and Power Control," 38th Annual Allerton Conference on Comm., Control and Comput., Monticello, IL, Oct. 2000 (invited).

T. Guess and M. K. Varanasi, "A Comparison of Signal Design Methods for Correlated Waveform Multiple-Access Communications," 38th Annual Allerton Conference on Comm., Control and Comput., Monticello, IL, Oct. 2000.

M. L. McCloud, M. Brehler, and M. K. Varanasi, "Signal Constellations for Noncoherent Space-Time Communications," 38th Annual Allerton Conference on Comm., Control and Comput., Monticello, IL, Oct. 2000 (invited).

D. Das and M. K. Varanasi, "Blind Adaptive Multiuser Detection with Averaging for Cellular Systems," IEEE International Symposium on Information Theory (ISIT'2000), Sorrento, Italy, June 2000.

E. A. Fain and M. K. Varanasi, "Minimum Bandwidth Basis Functions for the Fourth-Moment Bandwidth Measure," IEEE International Symposium on Information Theory (ISIT'2000), p. 416, Sorrento, Italy, June 2000.

T. Guess and M. K. Varanasi, "A New Succcessively Decodable Coding Technique for Intersymbol-Interference Channels," IEEE International Symposium on Information Theory (ISIT'2000), p. 102, Sorrento, Italy, June 2000.

M. K. Varanasi and M. L. McCloud, "Complex Spherical Modulation for Noncoherent Communications," IEEE International Symposium on Information Theory (ISIT'2000), p. 163, Sorrento, Italy, June 2000.

M. K. Varanasi, "Signal Design for Multiuser Communications," IEEE Communication Theory Workshop, Destin, Florida, May 2000 (invited).

T. Guess and M. K. Varanasi, "Deriving Optimal Successive Decoders for the Asynchronous CDMA Channel Using Information Theory", 34th Annual Conf. Inform. Sciences and Systems, Princeton University, Princeton, NJ, March 2000, pp. WP6.11-WP6.16.

M. L. McCloud and M. K. Varanasi, "Noncoherent Zero Forcing Equalization for Multipulse Modulation", 34th Annual Conf. Inform. Sciences and Systems, Princeton University, Princeton, NJ, March 2000, pp. FP2.1-FP2.6

A. Kapur, D. Das and M. K. Varanasi, "Noncoherent MMSE Multiuser Receivers for Non-Orthogonal Multipulse Modulation and Blind Adaptive Algorithms", 34th Annual Conf. Inform. Sciences and Systems, Princeton University, Princeton, NJ, March 2000, pp. FP3.13-FP3.18.

M. K. Varanasi, "On Signal Design in Multiuser Communications," A One-Day Symposium (Seventh in a Series), Interference Rejection and Signal Separation in Wireless Communications, New Jersey Institute of Technology, March 14, 2000.

D. Das and M. K. Varanasi, "Blind Adaptive Noncoherent Multiuser Detection for Nonlinear Modulation," 37th Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, Sept. 1999.

M. K. Varanasi, "Nonlinear Multiuser Receivers with Distributed Power Control in Cellular Radio Networks," 37th Annual Allerton Conf. on Comm. Control, and Comput., Monticello, IL, pp 820-830, Sept. 1999 (invited).

T. Guess and M. K. Varanasi, "Signal Design for Bandwidth Efficient Multiple-Access (BEMA) Comunication Based on Eigenvalue Optimization" Proc Commun. Th. Mini-Conf, ICC, Vancouver, BC, Canada, June 1999.

M. K. Varanasi, "Stochastic Power Control for Nonlinear Multiuser Receivers in Cellular Radio Networks," IEEE Inform. Th. Workshop, Kruger Ntnl Park, S. Africa, June 1999 (invited paper).

G. Ricci and M. K. Varanasi, "Blind Adaptive Multiuser Detection for the L out of K CDMA Channel," IEEE VTC, Houston, TX, May 1999.

M. K. Varanasi and T. Guess, "Bandwidth Efficient Multiple-Access (BEMA): Signal Design with a Strict Bandwidth Criterion Under Quality of Service  Constraints," Proc. International Symposium on Signals, Systems and Electronics (ISSSE '98), pp.146-151, Pisa, Italy, Sep. 29-Oct. 2, 1998 (invited).

A. Russ and M. K. Varanasi, "Optimum Noncoherent Multiuser Detection for Nonlinear Nonorthogonal Modulation Over the Frequency-Selective Rayleigh Fading Channel," IEEE Intl. Conf. Universal Personal Communications, Florence, Italy, Oct 1998.

M. K. Varanasi and Eric A. Fain, "Optimum Signal Design and Power Control for Multiuser Wireless Communications under Location-Invariant Bandwidth Constraints," 36th Annual Allerton Conf on Communication, Control and Computing, Monticello, IL, Sept 1998 (invited).

T. Guess and M. K. Varanasi, "An Information Theoretic Derivation of the MMSE Decision Feedback Equalizer," 36th Annual Allerton Conf on Communication, Control and Computing, Monticello, IL, Sept 1998.

M. K. Varanasi, "Noncoherent Equalization for Multipulse Modulation," Proc. IEEE Personal, Indoor and Mobile Communications Conf., Boston, MA, Sept. 1998.

E. A. Fain and M. K. Varanasi, "Error Probability Bound for Reduced Complexity Multiuser Decoding using Orthogonal Decomposability," Proc. of  IEEE International Symposium on Information Theory, p. 341, Aug. 1998.

T. Guess and M. K. Varanasi, "Error Exponents for the Gaussian Multiple-Access Channel" Proc. of  IEEE International Symposium on Information Theory, p. 214, Aug. 1998.

M. K. Varanasi and Deepak Das, "Noncoherent Decision Feedback Multiuser Detection:  Optimality, Performance Bounds, and Rules for Ordering Users," Proc. of  IEEE International Symposium on Information Theory, p. 35, Aug. 1998.

M. K. Varanasi and D. Das, "Noncoherent Decision Feedback Multiuser Detection for Nonorthogonal Multipulse Detection," Proc of the Conf. Inform. Sciences and Systems, Princeton University, March 1998, pp.230-235.

M. K. Varanasi and M. Brehler, "A Systematic Approach to Noncoherent Detection for DPSK Modulation in Multiuser Correlated Diversity Rayleigh Fading Channels," Proc of the Conf. Inform. Sciences and Systems, Princeton University, March 1998, pp. 236-241.

M. K. Varanasi, "Equalization for Multipulse Modulation," Proc. IEEE Intl Conf. Personal Wireless Communications (ICPWC'97), Mumbai (Bombay), India, December 1997.

M. K. Varanasi and T. Guess, "Bandwidth Efficient Multiple-Access Communications," Proc. IEEE Intl Conf. Personal Wireless Communications (ICPWC'97), Mumbai (Bombay), India, December 1997.

M. K. Varanasi and T. Guess, "Bandwidth-Efficient Multiple-Access via Signal Design for Decision Feedback Receivers: Towards an Optimal Spreading-Coding Trade-Off," Proc. Commun. Th. Mini-Conf., IEEE GLOBECOM, Phoenix, AZ, Nov. 1997.

E. Fain and M. K. Varanasi, "Group Metric Decoding for Frequency-Selective Rayleigh Fading Multiple-Access Channels," Proc. Commun. Th. Mini-Conf., IEEE GLOBECOM, pp. 205-207, Phoenix, AZ, Nov. 1997.

A. Russ and M. K. Varanasi, "Noncoherent Multiuser Detection for Nonlinear Modulation: An Asymptotic Analysis of Minimum Probability of Error for the Rayleigh Fading Channel," Proc. Commun. Th. Mini-Conf., IEEE GLOBECOM, pp. 195-199, Phoenix, AZ, Nov. 1997.

M. K. Varanasi and T. Guess, "Optimum Decision Feedback Multiuser Equalization with Successive Decoding Achieves the Total Capacity of the Gaussian Multiple-Access Channel," Proc. Asilomar Conf. on Signals, Systems and Computers, pp. 1405-1409, Monterey, CA, Nov. 1997 (invited).

A. Russ and M. K. Varanasi, "Minimum Error Probability and Suboptimum Noncoherent Multiuser Detection for Nonlinear Nonorthogonal Synchronous Signaling over a Rayleigh Fading Channel," Proc. 1997 IEEE, Personal, Indoor, Mobile Radio Communications Conf., pp. 58-62, Helsinki, Finland, September 1997.

M. K. Varanasi, "Asymptotically Optimum Multiuser Decision Feedback Detection," Proc. 1997 Intl Symp. Inform. Th, pp. 275, Ulm, Germany, June-July 1997.

M. K. Varanasi and T. Guess, "Achieving Vertices of the Capacity Region of the Gaussian Correlated-Waveform Multiple-Access Channel with Decision Feedback Receivers," Proc. 1997 Intl Symp. Inform. Th, pp. 270, Ulm, Germany, June-July 1997.

M. K. Varanasi and A. Russ, "Noncoherent Decorrelative Multiuser Detection for Nonlinear Nonorthogonal Modulation," Proc of the 1997 IEEE Intl Conf Communications, Montreal, Quebec, Canada, June 1997.

M. K. Varanasi, "Optimizing Symmetric Energy and Permuting Users for Decision Feedback Multiuser detection to User-Wise Outperform Linear Multiuser Detection," Proc of the Conf. Inform. Sciences and Systems, pp. 492-497, Johns Hopkins University, March 1997.

M. K. Varanasi, "A Systematic Approach to Noncoherent Detection of DPSK Modulation in Single-User Correlated Diversity Rayleigh Fading Channels with Applications to Post-Combining Decorrelative Multiuser Detection," Proc of the 1997 Conf. Inform. Sciences and Systems, pp. 480-485, Johns Hopkins University, March 1997.

T. Guess and M. K. Varanasi, "Multiuser Decision-Feedback Receivers for the General Gaussian Multiple-Access Channel," Proc. of the Annual Allerton Conf. on Communication, Control, and Computing, October, 1996.

M. K. Varanasi, "Noncoherent Multiuser Detection," a tutorial, 1996 IEEE Communication Theory Workshop, Destin, Florida, April 1996 (invited).

T. Guess and M. K. Varanasi, "Onion Peeling for CDMA--Symmetric Rate Under RMS Bandwidth Constraints," Proc. of the 1996 Conf. on Information Sciences and Systems, pp. 584-589, Princeton University, Princeton, NJ (March 1996).

M. K. Varanasi, "Power Control for Multiuser Detection," 1996 Conf. on Information Sciences and Systems, Princeton University, Princeton, NJ, pp. 866-873, (March 1996).

M. K. Varanasi, "Multiuser Detection in Frequency-Selective Rayleigh Fading Channels: A Unified Approach to Design and Succinct Eigenbounds on Performance: Part I," Proc. of the Annual Allerton Conf on Communication, Control, and Computing, pp. 11-20, Oct 2-4, 1995 (Invited).

M. K. Varanasi, "Multiuser Detection in Frequency-Selective Rayleigh Fading Channels: A Unified Approach to Design and Succinct Eigenbounds on Performance: Part II," Proc. of the Annual Allerton Conf on Communication, Control, and Computing, pp.1053-1062, Oct 2-4, 1995 (Invited).

M. K. Varanasi, "Delayed Decision Feedback Equalization," Proc. IEEE Int Symp on Information Theory, Whistler, B.C. Canada, September 1995.

M. K. Varanasi, "Successive Cancellation in Fading Multipath CDMA Channels," Proc. IEEE Int Symp on Information Theory, Whistler, B.C. Canada, September 1995.

M. K. Varanasi, "Group Sequence Detection: Bridging the Yawning Gap Between Linear and Optimum Multiuser Detection," Proc. Inform. Th. Workshop on Information Theory, Multiple-Access, and Queueing April 1995 (Invited).

 

Last modified: 2005-04-18T00:59