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TIT
2002
129views more  TIT 2002»
13 years 3 months ago
Asymptotic statistical properties of AR Spectral estimators for processes with mixed spectra
In this paper, the influence of a point spectrum on large sample statistics of the autoregressive (AR) spectral estimator is addressed. In particular, the asymptotic distributions ...
Soon-Sen Lau, Peter J. Sherman, Langford B. White
TIT
2002
89views more  TIT 2002»
13 years 3 months ago
Comparison of worst case errors in linear and neural network approximation
Sets of multivariable functions are described for which worst case errors in linear approximation are larger than those in approximation by neural networks. A theoretical framework...
Vera Kurková, Marcello Sanguineti
TIT
2002
54views more  TIT 2002»
13 years 3 months ago
Joint message-passing decoding of LDPC Codes and partial-response channels
Ideas of message passing are applied to the problem of removing the effects of intersymbol interference (ISI) from partial-response channels. Both bit-based and state-based paralle...
Brian M. Kurkoski, Paul H. Siegel, Jack K. Wolf
TIT
2002
99views more  TIT 2002»
13 years 3 months ago
Feedback strategies for white Gaussian interference networks
A white Gaussian interference network is a channel with transmitters and receivers where the received symbols are linear combinations of the transmitted symbols and white Gaussian ...
Gerhard Kramer
TIT
2002
69views more  TIT 2002»
13 years 3 months ago
Filter bank frame expansions with erasures
Abstract--We study frames for robust transmission over the Internet. In our previous work, we used quantized finite-dimensional frames to achieve resilience to packet losses; here,...
Jelena Kovacevic, Pier Luigi Dragotti, Vivek K. Go...
TIT
2002
129views more  TIT 2002»
13 years 3 months ago
Arbitrary source models and Bayesian codebooks in rate-distortion theory
-- We characterize the best achievable performance of lossy compression algorithms operating on arbitrary random sources, and with respect to general distortion measures. Direct an...
Ioannis Kontoyiannis, Junshan Zhang
TIT
2002
82views more  TIT 2002»
13 years 3 months ago
Order estimation for a special class of hidden Markov sources and binary renewal processes
We consider the estimation of the order, i.e., the number of hidden states, of a special class of discrete-time finite-alphabet hidden Markov sources. This class can be characteriz...
Sanjeev Khudanpur, Prakash Narayan
TIT
2002
87views more  TIT 2002»
13 years 3 months ago
Coding theorems for turbo code ensembles
This paper is devoted to a Shannon-theoretic study of turbo codes. We prove that ensembles of parallel and serial turbo codes are "good" in the following sense. For a tur...
Hui Jin, Robert J. McEliece
TIT
2002
64views more  TIT 2002»
13 years 3 months ago
Performance of blind and group-blind multiuser detectors
Abstract--In blind and group-blind multiuser detection, different detectors can be designed using either the sample data covariance matrix directly or its eigencomponents. Due to f...
Anders Høst-Madsen, Xiaodong Wang