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应用非协作博弈论提出一种无线局域网多用户接入控制(AC)算法.以分组发送时延作为实时用户对QoS的满意度指标,先建立AP对单用户的AC博弈模型(SAG);然后将SAG扩展为多用户AC博弈(MAG);通过求解MAG的纳什均衡,得到AP获取效用最大化的多用户接入策略。仿真结果表明,通过调整多用户接入缓冲区和AC周期的大小,MAG能够获得理想的用户接入时延;且与SAG相比,MAG能够在不影响系统吞吐量的情况下,通过优化接入用户的组合,显著地提高网络服务供应商的收益率(14%)。
A non-cooperative game theory is proposed to propose a wireless local area network multi-user access control (AC) algorithm. The delay of packet transmission is taken as the satisfaction index of QoS for real-time users. First, an AC game model (SAG) The SAG is extended to a multi-user AC game (MAG). By solving the Nash equilibrium of the MAG, a multi-user access strategy with maximum utility for the AP is obtained. The simulation results show that MAG can obtain the ideal user access delay by adjusting the size of multi-user access buffer and AC cycle. And compared with SAG, MAG can optimize the connection without affecting the system throughput Into the user’s portfolio, significantly improve the return on Internet service providers (14%).