多速率无线Mesh网络环境下功率控制与调度机制——PSMR

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