Ad hoc网络中的功率控制算法研究  

A Game Theory-based Power Control Algorithm in Ad hoc Network

作　　者：罗明鉴[1] 益晓新[1] 刘德良[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《通信技术》2011年第4期68-70,73,共4页Communications Technology

摘　　要：功率控制对于有效地使用和管理无线频谱资源也有着举足轻重的作用。通过对Ad hoc网络的分析,提出了一种基于博弈论的分布式功率控制算法,并证明了所设计的博弈功率效用函数的纳什均衡存在且唯一,同时给出了获得纳什均衡的功率调整方法。仿真结果表明,所提出的算法具有很快的收敛速度,同时通过适当调整代价函数因子,可以区分不同用户等级,实现不同等级用户的的通信要求。Power control is of great significance in effectively using and managing wireless spectral resource.Owing to widespread applications of Ad hoc network,and based on modeling the Ad hoc network and analyzing its performance,a game theory-based distributed power control algorithm in wireless Ad hoc Network is proposed.The utility function is designed properly and is proven to have only-one Nash equilibrium.The method for adjusting the power is also presented.Simulation results reveal that the proposed algorithm is of fairly fast convergence rate.Users could be categorized by properly assigning different power price coefficients and their different service requirements be satisfied.

关 键 词：AD HOC网络 博弈论 功率控制 

分 类 号：TN92[电子电信—通信与信息系统]