Joint source-channel rate allocation in parallel channels

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A fast rate-optimal rate allocation algorithm is proposed for parallel transmission of scalable images in multichannel 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 (SNRs) of the subchannels. The resulting scheme provides unequal error protection of source bits and significant gains are obtained over equal error protection schemes. An application of the proposed algorithm to JPEG2000 transmission shows the advantages of exploiting differences in SNRs between subchannels. Multiplexing of multiple sources is also considered, and additional gains are achieved by exploiting information diversity among the sources.

Original languageEnglish (US)
Pages (from-to)2016-2022
Number of pages7
JournalIEEE Transactions on Image Processing
Volume16
Issue number8
DOIs
StatePublished - Aug 2007

Fingerprint

Signal to noise ratio
Unequal Error Protection
JPEG2000
Optimal Rates
Multiplexing

Keywords

  • Joint source/channel coding
  • JPEG2000
  • Parallel channels
  • Rate allocation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Software
  • Theoretical Computer Science
  • Computational Theory and Mathematics
  • Computer Vision and Pattern Recognition

Cite this

Joint source-channel rate allocation in parallel channels. / Pu, Lingling; Marcellin, Michael W; Djordjevic, Ivan B; Vasic, Bane V; Bilgin, Ali.

In: IEEE Transactions on Image Processing, Vol. 16, No. 8, 08.2007, p. 2016-2022.

Research output: Contribution to journalArticle

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