1st International ICST Conference on Multimedia Services Access Networks

Research Article

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

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BibTeX Plain Text
  • @INPROCEEDINGS{10.1109/MSAN.2005.1489931,
    author={Qi  Qu and Yong  Pei and Bin  Wang and James W.  Modestino and Xusheng  Tian and Xunqi  Yu},
    title={Cross-layer rate-adaptation and joint source-channel coding for delay-constrained video streaming over wireless ad-hoc networks},
    proceedings={1st International ICST Conference on Multimedia Services Access Networks},
    publisher={IEEE},
    proceedings_a={MSAN},
    year={2005},
    month={8},
    keywords={Ad-hoc network Cross-layer design Video communications Effective transmission rate Rate-Adaptation Joint Source-Channel Coding Delay constraint.},
    doi={10.1109/MSAN.2005.1489931}
}
  • Qi Qu
    Yong Pei
    Bin Wang
    James W. Modestino
    Xusheng Tian
    Xunqi Yu
    Year: 2005
    Cross-layer rate-adaptation and joint source-channel coding for delay-constrained video streaming over wireless ad-hoc networks
    MSAN
    IEEE
    DOI: 10.1109/MSAN.2005.1489931
Qi Qu1, Yong Pei2, Bin Wang2, James W. Modestino3, Xusheng Tian3, Xunqi Yu3
  • 1: Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA92122
  • 2: Department of Computer Science and Engineering, Wright State University, Dayton, OH45435
  • 3: Department of Electrical and Computer Engineering, University of Miami, Coral Gables, FL33124

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 realtime 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.

Keywords
Ad-hoc network Cross-layer design Video communications Effective transmission rate Rate-Adaptation Joint Source-Channel Coding Delay constraint.
Published
2005-08-01
Publisher
IEEE
http://dx.doi.org/10.1109/MSAN.2005.1489931
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