中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (2): 53-58.doi: 10.1016/S1005-8885(09)60446-5

• Wireless • 上一篇    下一篇

Bandwidth Allocation and Admission Control Scheme Based on Nash Bargaining Solution for WiMAX Systems

蔡道进1,纪红2   

  1. 1. 北京市海淀区西土城路10号北京邮电大学
    2. 北京邮电大学
  • 收稿日期:2009-05-25 修回日期:2009-09-28 出版日期:2010-04-30 发布日期:2010-06-01
  • 通讯作者: 蔡道进 E-mail:bravejin@bupt.cn;bravejin@gmail.com
  • 基金资助:

    国家级.国家自然科学基金;国家级.国家“863计划”项目

Wimax系统中基于纳什议价方法的带宽分配和接入控制策略

  • Received:2009-05-25 Revised:2009-09-28 Online:2010-04-30 Published:2010-06-01

摘要:

本文利用纳什议价方法,提出一种WiMax系统中时分多址(TDMA)模式下的带宽分配和接入控制策略。该策略从合作博弈论的角度在WiMax系统的各种业务流之间分配带宽。根据用户分配带宽的结果,计算系统的吞吐量,衡量网络的收益。另外,提出一种接入控制策略用来实现系统收益的最大化。仿真结果表明,在不同的业务连接数和可变的信道质量情况下,带宽分配算法都能公平高效的为用户分配带宽,保障系统收益。接入控制策略能自适应于信道质量的变化。

关键词:

IEEE 802.16

Abstract:

This paper presents a bandwidth allocation and admission control scheme for IEEE 802.16 broadband wireless access systems in TDMA mode, using Nash Bargaining Solution (NBS). NBS provides bandwidth allocation among various flows from a cooperative point of view. Moreover, the way to generate the Pareto boundary is demonstrated. Hence, the Nash solution of the bargaining problem can be obtained easily. Based on the results of NBS, the utility of throughput is evaluated for the whole networks. Then, an admission control policy could be established to maintain the maximum system utility. Computer simulations have shown that under different number of connections and variable channel qualities, the bandwidth allocation algorithm can allocate bandwidth fairly and efficiently within different classes of service flows accordingly, and the admission control policy is adaptive to the variable channel qualities.

Key words:

IEEE 802.16