Joint source coding and packet classification for real-time video transmission over Differentiated Services networks

Fan Zhai*, Carlos E. Luna, Yiftach Eisenberg, Thrasyvoulos N. Pappas, Randall Berry, Aggelos K. Katsaggelos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Differentiated Services (DiffServ) is one of the leading architectures for providing quality of service in the Internet. We propose a scheme for real-time video transmission over a DiffServ network that jointly considers video source coding, packet classification, and error concealment within a framework of costdistortion optimization. The selections of encoding parameters and packet classification are both used to manage end-to-end delay variations and packet losses within the network. We present two dual formulations of the proposed scheme: the minimum distortion problem, in which the objective is to minimize the end-to-end distortion subject to cost and delay constraints, and the minimum cost problem, which minimizes the total cost subject to end-to-end distortion and delay constraints. A solution to these problems using Lagrangian relaxation and dynamic programming is given. Simulation results demonstrate the advantage of jointly adapting the source coding and packet classification in DiffServ networks.

Original languageEnglish (US)
Pages (from-to)716-725
Number of pages10
JournalIEEE Transactions on Multimedia
Volume7
Issue number4
DOIs
StatePublished - Aug 2005

Keywords

  • Error concealment
  • Error resilience
  • Joint source-channel coding
  • Multimedia communication
  • Optimal resource allocation
  • QoS
  • Unequal error protection (UEP)

ASJC Scopus subject areas

  • Signal Processing
  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

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