机构地区: 深圳职业技术学院
出 处: 《计算机测量与控制》 2013年第3期703-705,共3页
摘 要: 针对同频AP在重复覆盖区域存在干扰问题,分析STA移动性和链路状态可观察的特点,引入概率论思想,提出一种基于Markov决策理论的单链路功率控制算法,通过构建单传输链路的状态集、动作集、状态转移函数模型及报酬函数模型,实现AP功率调整策略的动态生成和在线调整;利用OPNET仿真平台,搭建IEEE802.11b无线网络实验环境,实验结果表明该算法有效降低了AP能量消耗,提高了网络吞吐率。 Co--channel AP interferes with each other in repeat coverage area According to the mobility of STA and the state transition of AP--STA link, this paper proposes a single--link transmission power control algorithm based on the Markov Decision Processes. The sin- gle AP--STA link MDP model is constructed, which includes state, action, state transition function and reword function. The algorithm im- plements the dynamic creation and on--line tuning of the power adjustment policy. Under the experiment environment in IEEE802.11b, the result demonstrates the algorithm can reduce the AP power consumption efficiently and improve the network throughput.
关 键 词: 无线局域网 无线接入点 马尔可夫决策过程 传输功率控制
领 域: [自动化与计算机技术] [自动化与计算机技术]