Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (10): 34-38，43.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

A QoS-Guaranteeing Algorithm for WiMAX Mesh Network

Huang Zhao-wen1  Feng Sui-li1  Ye Wu1  Zhuang Hong-cheng2   

  1. 1.School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Huawei Technologies Co., Ltd., Shenzhen 518129, Guangdong, China
  • Received:2008-11-11 Revised:2009-01-11 Online:2009-10-25 Published:2009-10-25
  • Contact: 黄昭文（1973-），男，博士生，主要从事网络性能分析和QoS研究． E-mail:huang．zhaowen@mail．scut．edu．cn
  • About author:黄昭文（1973-），男，博士生，主要从事网络性能分析和QoS研究．
  • Supported by:

    粤港关键领域重点突破项目（20060104-2）

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Abstract:

In this paper, several existing QoS （Quality of Service） -guaranteeing mechanisms for WiMAX mesh network （WMN） are analyzed, and the limitations of the existing mechanisms relating to the routing algorithms and the per-hop QoS guarantee are pointed out. Moreover, the reasons for the difficulty in guaranteeing the QoS are dis- cussed, and an effective and dynamic QoS-guaranteeing algorithm for WMN is proposed. In this algorithm, WMN is considered as an integer to determine some constraints for the data packet processing of each WMN node in a view of integrity, and the traffic-handling algorithm for each node is presented. By using the proposed algorithm, the throughput of WMN is significantly improved and the fairness of bandwidth sharing by nodes is well guaranteed. Simulated results on a self-developed WMN platform show that the proposed algorithm is both effective and flexible.

Key words: WiMAX mesh network, throughput, quality of service, algorithm, fairness