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Open Access

Fair and Bandwidth-Efficient Broadcast Link Rate Adaption in Wireless LANs

Yunheng Wan, Xi Chen, Jianhua Lu( )
Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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Abstract

Broadcast delivery of bulk multimedia files is an important wireless LAN application for densely populated scenarios such as inside high-speed train carriages. However, it is a challenge to adapt the broadcast link rate due to heterogeneity and varying channel conditions of the broadcast receivers to achieve both high bandwidth efficiency and fairness. In this paper, the broadcast link rate adaption problem is formulated as a quadratic programming problem with a broadcast link rate adaption algorithm named FBB (Fair and Bandwidth-efficient Broadcast). Simulation results show that the algorithm significantly outperforms fixed rate broadcast with only a small loss compared to its theoretical performance. The algorithm has been successfully applied in a practical wireless LAN access point.

Keywords

broadcastwireless lanlink rate adaptationfairness

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Tsinghua Science and Technology
Volume 17 Issue 1,
February 2012
Pages 60-66
DOI: 10.1109/TST.2012.6151908

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Cite this article:
Wan Y, Chen X, Lu J. Fair and Bandwidth-Efficient Broadcast Link Rate Adaption in Wireless LANs. Tsinghua Science and Technology, 2012, 17(1): 60-66. https://doi.org/10.1109/TST.2012.6151908

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Received: 17 September 2010
Revised: 06 September 2011
Published: 01 February 2012
© The author(s) 2012.

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).