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TIT
2002
101views more  TIT 2002»
8 years 3 months ago
Large-system performance analysis of blind and group-blind multiuser receivers
We present a large-system performance analysis of blind and group-blind multiuser detection methods. In these methods, the receivers are estimated based on the received signal samp...
Junshan Zhang, Xiaodong Wang
TIT
2002
125views more  TIT 2002»
8 years 3 months ago
Optimal bi-level quantization of i.i.d. sensor observations for binary hypothesis testing
We consider the problem of binary hypothesis testing using binary decisions from independent and identically distributed (i.i.d). sensors. Identical likelihood-ratio quantizers wit...
Qian Zhang, Pramod K. Varshney, Richard D. Wesel
TIT
2002
78views more  TIT 2002»
8 years 3 months ago
Communicating via a processing broadcast satellite
Three dependent users are physically separated but communicate with each other via a satellite. Each user generates data which it stores locally. In addition, each user sends a me...
Aaron D. Wyner, Jack K. Wolf, Frans M. J. Willems
TIT
2002
101views more  TIT 2002»
8 years 3 months ago
Spectrally efficient noncoherent communication
This paper considers noncoherent communication over a frequency-nonselective channel in which the time-varying channel gain is unknown a priori, but is approximately constant over ...
Dilip Warrier, Upamanyu Madhow
TIT
2002
91views more  TIT 2002»
8 years 3 months ago
On limited-delay lossy coding and filtering of individual sequences
Abstract--We continue the study of adaptive schemes for the sequential lossy coding of individual sequences which was recently initiated by Linder and Lugosi. Specifically, we cons...
Tsachy Weissman, Neri Merhav
TIT
2002
78views more  TIT 2002»
8 years 3 months ago
Tradeoffs between the excess-code-length exponent and the excess-distortion exponent in lossy source coding
Lossy compression of a discrete memoryless source (DMS) with respect to a single-letter distortion measure is considered. We study the best attainable tradeoff between the exponent...
Tsachy Weissman, Neri Merhav
TIT
2002
116views more  TIT 2002»
8 years 3 months ago
On delayed prediction of individual sequences
Prediction of individual sequences is investigated for cases in which the decision maker observes a delayed version of the sequence, or is forced to issue his/her predictions a nu...
Marcelo J. Weinberger, Erik Ordentlich
TIT
2002
98views more  TIT 2002»
8 years 3 months ago
DC-free binary convolutional coding
A novel DC-free binary convolutional coding scheme is presented. The proposed scheme achieves the DC-free and error correcting capability simultaneously. The scheme has a simple ca...
Tadashi Wadayama, A. J. Han Vinck
TIT
2002
95views more  TIT 2002»
8 years 3 months ago
Opportunistic beamforming using dumb antennas
Multiuser diversity is a form of diversity inherent in a wireless network, provided by independent time-varying channels across the different users. The diversity benefit is exploi...
Pramod Viswanath, David N. C. Tse, Rajiv Laroia
TIT
2002
90views more  TIT 2002»
8 years 3 months ago
Optimal sequences for CDMA under colored noise: A Schur-saddle function property
We consider direct sequence code division multiple access (DS-CDMA), modeling interference from users communicating with neighboring base stations by additive colored noise. We con...
Pramod Viswanath, Venkat Anantharam
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