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TIT
2010
112views Education» more  TIT 2010»
13 years 2 months ago
Twice-universal simulation of Markov sources and individual sequences
Abstract-- The problem of universal simulation given a training sequence is studied both in a stochastic setting and for individual sequences. In the stochastic setting, the traini...
Alvaro Martín, Neri Merhav, Gadiel Seroussi...
TIT
2010
97views Education» more  TIT 2010»
13 years 2 months ago
Why does the Kronecker model result in misleading capacity estimates?
Many recent works that study the performance of multi-input multi-output (MIMO) systems in practice assume a Kronecker model where the variances of the channel entries, upon decom...
Vasanthan Raghavan, Jayesh H. Kotecha, Akbar M. Sa...
TIT
2010
131views Education» more  TIT 2010»
13 years 2 months ago
Characterization of SINR region for interfering links with constrained power
In this paper, a communication system including n interfering additive white Gaussian noise (AWGN) links is considered. Each transmitter uses a Gaussian codebook and each receiver...
Hajar Mahdavi-Doost, Masoud Ebrahimi, Amir K. Khan...
TIT
2010
137views Education» more  TIT 2010»
13 years 2 months ago
Stable recovery of sparse signals and an oracle inequality
This article considers sparse signal recovery in the presence of noise. A mutual incoherence condition which was previously used for exact recovery in the noiseless case is shown t...
T. Tony Cai, Lie Wang, Guangwu Xu
TIT
2010
110views Education» more  TIT 2010»
13 years 2 months ago
Error rates of the maximum-likelihood detector for arbitrary constellations: convex/concave behavior and applications
Motivated by a recent surge of interest in convex optimization techniques, convexity/concavity properties of error rates of the maximum likelihood detector operating in the AWGN ch...
Sergey Loyka, Victoria Kostina, François Ga...
TIT
2010
104views Education» more  TIT 2010»
13 years 2 months ago
Nonparametric statistical inference for ergodic processes
In this work a method for statistical analysis of time series is proposed, which is used to obtain solutions to some classical problems of mathematical statistics under the only as...
Daniil Ryabko, Boris Ryabko
TIT
2010
90views Education» more  TIT 2010»
13 years 2 months ago
Group codes outperform binary-coset codes on nonbinary symmetric memoryless channels
Typical minimum distances and error exponents are analyzed on the 8-PSK Gaussian channel for two capacityachieving code ensembles with different algebraic structure. It is proved t...
Giacomo Como
TIT
2010
171views Education» more  TIT 2010»
13 years 2 months ago
Analysis of orthogonal matching pursuit using the restricted isometry property
Orthogonal matching pursuit (OMP) is the canonical greedy algorithm for sparse approximation. In this paper we demonstrate that the restricted isometry property (RIP) can be used f...
Mark A. Davenport, Michael B. Wakin