DocumentCode :
2088421
Title :
Nested linear/lattice codes for Wyner-Ziv encoding
Author :
Zamir, Ram ; Shamai, Shlomo
Author_Institution :
Dept. of Electr. Eng. Syst., Tel Aviv Univ., Israel
fYear :
1998
fDate :
22-26 Jun 1998
Firstpage :
92
Lastpage :
93
Abstract :
We construct structured codes for lossy compression with uncoded side information at the decoder. These codes aim at achieving the optimal performance, given by the Wyner-Ziv (1976) rate-distortion function, for two typical settings. For binary symmetric source/side-information, we show that a pair of nested linear binary codes, each individually “good” in the classical sense, approaches the WZ-function relative to the Hamming distortion measure. For the quadratic Gaussian case we show a similar result at high SNR, using a pair of nested lattices and their associated lattice-decoding functions
Keywords :
binary codes; data compression; decoding; linear codes; rate distortion theory; source coding; Hamming distortion measure; Wyner-Ziv encoding; binary symmetric source/side-information; decoder; high SNR; lattice-decoding functions; lossy compression; nested linear binary codes; nested linear/lattice codes; optimal performance; quadratic Gaussian case; rate-distortion function; source coding; structured codes; uncoded side information; Binary codes; Channel coding; Decoding; Distortion measurement; Ear; Encoding; Entropy; Lattices; Linear code; Parity check codes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory Workshop, 1998
Conference_Location :
Killarney
Print_ISBN :
0-7803-4408-1
Type :
conf
DOI :
10.1109/ITW.1998.706450
Filename :
706450
Link To Document :
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