Cross-layer rate-adaptation and joint source-channel coding for delay-constrained video streaming over wireless ad-hoc networks

Qi Qu, Yong Pei, James W. Modestino, Xusheng Tian, Bin Wang, Xunqi Yu

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

4 Scopus citations

Abstract

For video communications over wireless ad-hoc networks, there are fundamentally two different kinds of packet losses: packet losses due to channel over-pumping, where the operating transmission rate is higher than the prevailing channel capacity, and packet losses due to transmission errors. To eliminate the first kind of packet losses, rate-adaptation is necessary in order to adapt to the time-varying channel capacity. For the second kind of packet losses, error-resilient coding techniques should be used. In this paper, we propose a cross-layer rate-adaptation scheme based on an analytical study of how the effective video transmission rate is affected by the prevailing operating parameters. Furthermore, in order to provide error-resilient real-time video delivery over such wireless ad-hoc networks, a crosslayer delay-constrained joint source-channel coding (JSCC) approach, to be used in conjunction with rate-adaptation, is proposed and investigated. Simulation results demonstrate the effectiveness of this combination of cross-layer rate-adaptation and delay-constrained JSCC for supporting error-resilient video delivery over wireless ad-hoc networks operating under a delay constraint. We also demonstrate the influence of the imposed delay constraint on the overall system performance.

Original languageEnglish (US)
Title of host publication2005 1st InternationalConference on Multimedia Services Access Networks, MSAN05
Pages1-5
Number of pages5
DOIs
StatePublished - 2005
Event2005 1st InternationalConference on Multimedia Services Access Networks, MSAN05 - Orlando, FL, United States
Duration: Jun 13 2005Jun 15 2005

Publication series

Name2005 1st International Conference on Multimedia Services Access Networks, MSAN05
Volume2005

Other

Other2005 1st InternationalConference on Multimedia Services Access Networks, MSAN05
Country/TerritoryUnited States
CityOrlando, FL
Period6/13/056/15/05

Keywords

  • Ad-hoc network
  • Cross-layer design
  • Delay constraint
  • Effective transmission rate
  • Joint Source-Channel Coding
  • Rate-Adaptation
  • Video communications

ASJC Scopus subject areas

  • Engineering(all)

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