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Proceedings Paper

Joint source-channel rate allocation in parallel channels
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Paper Abstract

A novel rate-optimal rate allocation algorithm is proposed for parallel transmission of scalable images in multi-channel systems. Scalable images are transmitted via fixed-length packets. The proposed algorithm selects a subchannel as well as a channel code rate for each packet, based on the signal-to-noise ratios (SNR) of the subchannels. The resulting scheme provides unequal error protection of source bits. Applications to JPEG2000 transmission show that significant UEP gains are achieved over equal error protection (EEP) schemes.

Paper Details

Date Published: 29 January 2007
PDF: 8 pages
Proc. SPIE 6508, Visual Communications and Image Processing 2007, 65081A (29 January 2007); doi: 10.1117/12.702605
Show Author Affiliations
Lingling Pu, The Univ. of Arizona (United States)
Michael W. Marcellin, The Univ. of Arizona (United States)
Ivan Djordjevic, The Univ. of Arizona (United States)
Bane Vasic, The Univ. of Arizona (United States)
Ali Bilgin, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 6508:
Visual Communications and Image Processing 2007
Chang Wen Chen; Dan Schonfeld; Jiebo Luo, Editor(s)

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