An end-to-end embedded approach for multicast/broadcast of scalable video over multiuser CDMA wireless networks

Sin Chan Yee, James W. Modestino, Qu Qi, Fan Xingzhe

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

We investigate an embedded multicast/broadcast approach for transport of digital video over spread-spectrum code-division multiple access (CDMA) cellular networks. Previous work has shown that the incorporation of a scalable source coding scheme with multiresolution modulation provides a promising design paradigm for the practical realization of the information-theoretic performance predictions originally developed by Cover [1], which demonstrated that optimal multicast/broadcast performance could be achieved by an embedded transmission scheme. Hence, the major technical challenge associated with the design of an end-to-end embedded multicast/broadcast system is how to match an embedded modulation constellation with a scalable source coding scheme. In this work, taking into consideration both the interference-limited and bandwidth-limited characteristics of a CDMA system, we provide a cross-layer approach incorporating adaptive power allocation and channel coding strategies and effectively match a discrete cosine transform based scalable motion-compensated video encoder to an embedded multiresolution modulation scheme to simultaneously deliver a basic quality-of-service (QoS) to less capable receivers while maximizing both the QoS for more capable receivers and the system capacity. We demonstrate the efficacy of this approach using the ITU-T H.263+ video scalable hybrid coder, although the approach is generally extensible to other scalable coding schemes as well.

Original languageEnglish (US)
Pages (from-to)655-667
Number of pages13
JournalIEEE Transactions on Multimedia
Volume9
Issue number3
DOIs
StatePublished - Apr 1 2007

Keywords

  • Adaptive modulation and coding
  • Code-division multiple access (CDMA)
  • Cross-layer
  • Drift control
  • Embedded transmission
  • H.263+
  • Joint source coding-power control
  • Joint source-channel coding
  • Multicast/broadcast
  • Turbo codes
  • Wireless video

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Computer Graphics and Computer-Aided Design
  • Software

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