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The Computer Journal Advance Access originally published online on August 21, 2008
The Computer Journal 2009 52(8):950-959; doi:10.1093/comjnl/bxn041
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© The Author 2008. Published by Oxford University Press on behalf of The British Computer Society. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

This article appears in the following The Computer Journal issue: Incorporating Systems, communications and services in smart homes and Software engineering for e-business Special Issues [View the issue table of contents]

Joint Routing and Rate Control Scheme for Multi-Stream High-Definition Video Transmission over Wireless Home Networks

Liang Zhou1,2,*, Baoyu Zheng2, Anne Wei3, Benoit Geller4,5 and Jingwu Cui2

1 Electrical Engineering Department, Shanghai Jiao Tong University, Shanghai, China
2 Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China
3 Laboratory of CEDRIC, Conservatoire National des Arts et Métiers, Paris, France
4 LEI, Ecole Nationale Supérieure des Techniques Avancées, Paris, France
5 Laboratory of SATIE, Ecole Normale Supérieure (E.N.S.), Cachan, France

* Corresponding author: zkingzll1981{at}gmail.com

Received 29 January 2008; revised 6 July 2008

The support for multiple high-definition video streams in wireless home networks requires appropriate routing and rate control measures, ascertaining the reasonable links for transmitting each stream and the rate of the video to be delivered over the chosen links. In this paper, we invest the combination of the routing and rate control in a united convex optimization formulation and propose a distributed joint solution based on cross-layer design. We first develop a distortion model which captures both the impact of encoder quantization and packet loss due to network congestion on the overall video quality. Then, the optimal joint rate control and routing scheme is realized by adapting its rate to the time-varying traffic and minimizing the overall network congestion. Furthermore, simulation results are provided, which demonstrate the effectiveness of our proposed joint routing and rate control scheme in the context of wireless home networks.

Key Words: wireless home networks • routing • rate control • high-definition video


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