一种移动自组网动态功率控制方法

在复杂多变的无线信道中实施移动自组网应用,一个首要的问题就是节能。本文提出基于信号强度的链路层发送功率控制方法,在实际物理信道环境中,通过在物理层和链路层添加针对信号功率的收集、分析和反馈功能,应对特定的信道状况和通信状况采用合适的发送功率进行通信,实现通信双方自适应的功率协调控制,确保节点的接收功率处在合理的大小范围内,以实现节点能量的合理使用与良好的通信性能。通过在NS-2环境下进行仿真实验,分析了该功率控制方法在功率节省和网络性能提升上的有效性。

A Dynamic Transimission Power Control Method for MANET

To resolve the problem of energy saving in MANET in complex wirless channel,we propose an interactive,graded power control method that operates at MAC layer.By considering the effect of signal fading from realistic environment,and adding processing functions for an array of recently incoming packets at physical layer and MAC layer,nodes can adaptively choose the appropriate transmission power for communication,the transmission powers of both sides are maintained at appropriate level.The energy of nodes can ...