Downlink OFDM scheduling and resource allocation for delay constraint SVC streaming

Xin Ji, Jianwei Huang, Mung Chiang, Francky Catthoor

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

11 Scopus citations


Efficient delivery of multimedia contents over wireless network is essential for future communication networks. However, content distribution and network engineering are traditionally studied separately, which leads to suboptimal network performance. In this paper, we consider the problem of scheduling and resource allocation for multi-user video streaming over downlink OFDM channels. The video streams are precoded with the SVC coding scheme, which offers both quality and temporal scalabilities. The OFDM technology provides the maximum flexibility of resource allocation in terms of time, frequency, and power. We propose a gradient-based scheduling and resource allocation algorithm, which explicitly takes account of video contents, deadline requirements, and the previous transmission results when calculating users' priority weights. Simulation results show that our proposed algorithm always outperforms the content-blind and deadline-blind algorithms, with a performance gain as much as 6 dB in terms of average user PSNR improvement in a congested network.

Original languageEnglish (US)
Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
Number of pages7
StatePublished - Sep 12 2008
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: May 19 2008May 23 2008

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486


OtherIEEE International Conference on Communications, ICC 2008

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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