• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2011, Vol. 33 ›› Issue (8): 14-18.

• 论文 • 上一篇    下一篇

无线Mesh网络中基于最小权有限支配集的网关部署算法研究

翦鹏,漆华妹,陈志刚   

  1. (中南大学信息科学与工程学院,湖南 长沙 410083)
  • 收稿日期:2010-10-10 修回日期:2011-02-15 出版日期:2011-08-25 发布日期:2011-08-25
  • 作者简介:翦鹏(1987),男,湖南常德人,硕士生,研究方向为无线Mesh网络。漆华妹(1979),女,江西南昌人,博士,研究方向为无线Mesh 网络、网络演算。陈志刚(1964),男,湖南益阳人,博士,教授,研究方向为网络计算与分布式处理。
  • 基金资助:

    国家863计划资助项目(2008AA7034060B);国家自然科学基金资助项目(60873082);总参预研基金资助项目(9140A15030308QT4801)

Research of a Gateway Deployment Algorithm for Wireless Mesh Networks Based on the Limited Dominating Set

JIAN Peng,QI Huamei,CHEN Zhigang   

  1. (School of Information Science and Engineering,Central South University,Changsha 410083,China)
  • Received:2010-10-10 Revised:2011-02-15 Online:2011-08-25 Published:2011-08-25

摘要:

无线Mesh网络中网关是网络性能的瓶颈,网关部署至关重要。本文对无线Mesh网络中网关QoS性能进行分析,提出基于最小权有限支配集,以部署费用为贪心策略的贪婪算法(Greedy_LDSC),该算法用贪心法提高了网关的性价比。同时,提出了基于最小权有限支配集改进的贪婪算法(Greedy_LDSI),以降低网关的部署费用。仿真实验表明,从网关性价比方面来看,Greedy_LDSC算法的网关性价比之和比基于最小权有限支配集的网关部署算法(GREEDY_LDS)要高;从网关部署费用方面来看,Greedy_LDSI算法的网关部署费用比GREEDY_LDS算法会低。

关键词: 无线Mesh网络, 网关, QoS, 网关部署算法

Abstract:

The gateway in wireless mesh networks always acts as the bottleneck of network performance. Therefore, the deployment of gateways is very important. This paper analyzes the QoS performance of gateways in wireless mesh networks, and proposes a Greedy Algorithm Based on the Limited Dominating Set with a Cost Strategy(Greedy_LDSC). This algorithm improves the cost performance by using a greedy algorithm. In addition, to reduce the cost of the deployed gateway, an Improved Greedy Algorithm Based on the Limited Dominating Set(Greedy_LDSI) is proposed. From the aspect of the cost performance, simulation experiments show that Greedy_LDSC is higher than GREEDY_LDS at the sum of the cost performance of the gateway. In terms of the cost of the gateway deployment, Greedy_LDSI shows better performance than GREEDY_LDS.

Key words: wireless mesh network;gateway;QoS;gateway deployment algorithm