计算机应用 ›› 2011, Vol. 31 ›› Issue (01): 208-211.

• 网络与通信 • 上一篇    下一篇

多速率无线Mesh网络环境下功率控制与调度机制——PSMR

李威煌1,吕品2,陈颖文2,徐明3   

  1. 1. 国防科学技术大学
    2.
    3. 国防科学技术大学计算机学院
  • 收稿日期:2010-07-01 修回日期:2010-08-30 发布日期:2011-01-12 出版日期:2011-01-01
  • 通讯作者: 李威煌
  • 基金资助:
    湖南省自然科学基金资助项目

PSMR: Power control and scheduling scheme in multi-rate wireless mesh networks

  • Received:2010-07-01 Revised:2010-08-30 Online:2011-01-12 Published:2011-01-01
  • Contact: LI Wei-Huang

摘要: 传输功率控制(TPC)技术是提高无线网络性能的关键技术之一。针对无线Mesh网络(WMN)的特点,提出了一种在多速率WMN环境下功率控制与调度机制(PSMR),该机制以系统的吞吐率和公平性为目标,利用冲突图思想对网络进行分析,建立了多目标规划的数学模型,并采用微分进化算法对其进行求解。模拟测试表明,PSMR能有效提高系统吞吐率,改善系统的公平性。

关键词: 无线Mesh网络, 传输功率控制, 多速率, 吞吐率, 公平性, 微分进化算法

Abstract: Transmission power control (TPC) is a key technique in wireless networking. In this paper, A Power control and Scheduling scheme in Multi-Rate wireless mesh networks (PSMR) is introduced to improve the throughput and the fairness in the context of multi-rate Wireless Mesh Network (WMN). Traffic patterns of the system are analyzed based on a model of conflict graph, and a differential evolution based algorithm is proposed to optimize the time allocation vector. Simulations demonstrate that PSMR can improve the throughput and also can strike a balance between throughput and fairness.

Key words: wireless mesh network, transmission power control, multi-rate, throughput, fairness, differential evolution algorithm