NDLI: Robust Distributed Source Coder Design by Deterministic Annealing

Content Provider	IEEE Xplore Digital Library
Author	Saxena, A. Nayak, J. Rose, K.
Copyright Year	1991
Abstract	This paper considers the design of efficient quantizers for a robust distributed source coding system. The information is encoded at independent terminals and transmitted across separate channels, any of which may fail. The scenario subsumes a wide range of source and source-channel coding/quantization problems, including multiple descriptions and distributed source coding. Greedy descent methods depend heavily on initialization, and the presence of abundant (high density of) ¿poor¿ local optima on the cost surface strongly motivates the use of a global design algorithm. We propose a deterministic annealing approach for the design of all components of a generic robust distributed source coding system. Our approach avoids many poor local optima, is independent of initialization, and does not make any simplifying assumption on the underlying source distribution. Simulation results demonstrate a wide spread in the performance of greedy Lloyd-based algorithms, and considerable gains are achieved by using the proposed deterministic annealing approach.
Sponsorship	IEEE Signal Processing Society
Starting Page	859
Ending Page	868
Page Count	10
File Size	469227
File Format	PDF
ISSN	1053587X
Volume Number	58
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Annealing Source coding Acoustic sensors Temperature sensors Channel coding Quantization Cost function Algorithm design and analysis Performance gain sensor networks Deterministic annealing distributed source coding
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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