基于跳时多址的MANET功率控制协议  

Power control protocol for THMA based on Ad Hoc networks

作　　者：范金强[1] 刘洛琨[1] 

机构地区：[1]解放军信息工程大学信息工程学院通信工程系,河南郑州450002

出　　处：《计算机工程与设计》2008年第15期3858-3860,共3页Computer Engineering and Design

基　　金：国防预研基金项目(110010304)

摘　　要：针对移动MANET网络中采用跳时多址接入技术中产生的"远近"效应,节点利用超宽带网络的精确的定位特性和功率与距离的线性关系及来自卫星的定位信息,根据接收节点处的信噪比和信号功率在信道的衰减,调节自己的发射功率,避免对周围正在通信的节点造成干扰,从而实现功率控制。通过仿真结果表明,该方法可以提高网络的信道利用率,节省网络中节点的能量。To solve the problem of the ＂near-far＂ effect in the THMA-based Ad Hoc networks, a power control way is introduced by using the characteristic of UWB and location information, Nodes make use of the characteristic of accurate orientation of UWB network and the linearity relation of power and distance and the location from planet, adjust theirs transmit power according the SNR of the receiving nodes and the attenuation of the signal power in the channel, Thereby avoid interfering with around nodes communicating and achieve power control. Simulations indicate this way can improve channel centripetal, save the energy of network,

关 键 词：超宽带 跳时多址 地理位置信息 功率控制 “远近”效应 

分 类 号：TN925.5[电子电信—通信与信息系统]