Cross-layer design for video streaming over wireless ad hoc networks

Taesang Yoo, Eric Setton, Xiaoqing Zhu, Andrea Goldsmith, Bernd Girod

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

26 Scopus citations

Abstract

We propose a cross-layer design framework for supporting delay-critical traffic over ad hoc wireless networks and analyze its benefits for video streaming. In this framework, link capacities and traffic flows are jointly allocated to minimize the congestion experienced by video packets. The optimal solution, calculated via time sharing among different transmission schemes, concentrates resources only on active links. Experimental results on a simulated network illustrate the advantages of cross-layer design over another method based on oblivious layers. With one path, the cross-layer approach yields a 10-fold gain in supported data rate or equivalently 8.5 dB improvement in PSNR of achievable received video quality. Using 3 paths, the gain is 3-fold in rate or 5 dB in video quality. While multipath routing is essential to high data rate in oblivious-layered design, cross-layer design achieves efficient resource utilization regardless of the number of routes.

Original languageEnglish (US)
Title of host publication2004 IEEE 6th Workshop on Multimedia Signal Processing
Pages99-102
Number of pages4
StatePublished - 2004
Externally publishedYes
Event2004 IEEE 6th Workshop on Multimedia Signal Processing - Siena, Italy
Duration: Sep 29 2004Oct 1 2004

Publication series

Name2004 IEEE 6th Workshop on Multimedia Signal Processing

Conference

Conference2004 IEEE 6th Workshop on Multimedia Signal Processing
Country/TerritoryItaly
CitySiena
Period9/29/0410/1/04

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Engineering(all)

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