Multi-layered video transmission over wireless channels using an adaptive modulation and coding scheme

Y. Pei, J. W. Modestino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

30 Scopus citations


In this paper we describe a multi-layered video transport scheme for wireless channels capable of adapting to channel conditions in order to maximize end-to-end quality of services (QoS). This scheme combines a scalable H.263+ video source coder with unequal error protection (UEP) accross layers. The UEP is achieved by employing different channel codes together with a multiresolution modulation approach to transport the different priority layers. Adaptivity to channel conditions is provided through use of joint source-channel coding (JSCC) which attempts to jointly optimize the source and channel coding rates together with the modulation parameters to obtain the maximum achievable end-to-end QoS for the prevailing channel conditions. Results indicate that this adaptive JSCC scheme employing scalable video encoding together with a multiresolution modulation/coding approach leads to significant improvements in delivered video quality for specified channel conditions. In particular, the approach results in considerably improved graceful degradation properties for decreasing channel SNR.

Original languageEnglish
Title of host publicationIEEE International Conference on Image Processing
Number of pages4
StatePublished - Jan 1 2001
EventIEEE International Conference on Image Processing (ICIP) - Thessaloniki, Greece
Duration: Oct 7 2001Oct 10 2001


OtherIEEE International Conference on Image Processing (ICIP)


  • Adaptive modulation and coding
  • Joint source-channel coding
  • MPSK
  • Scalable video coding
  • Unequal error protection
  • Video transport

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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