Power distribution algorithm based on game theory in the femtocell system  

作　　者：MU Shi-yao ZHU Qi 

机构地区：[1]Jiangsu Key Lab of Wireless Communications, Key Lab on Wideband Wireless Communications and Sensor Network Technology of Ministry of Educations, Nanjing University of Posts and Telecommunications

出　　处：《The Journal of China Universities of Posts and Telecommunications》2013年第2期42-47,共6页中国邮电高校学报（英文版）

基　　金：supported by the National Basic Research Program of China(2007CB310607);the National Natural Science Foundation of China(61171094);the National Science & Technology Key Project(2011ZX03001-006-02,2011ZX03005-004-03)

摘　　要：This paper studies the power control problem in femtocell system based on Nash non-cooperative game theory. It designs an utility function taking fem stations＇ transmit power as variable and relates it to the requirements of macro users＇ and fem users＇ signal to interference plus noise ratio （SINR）. The utility also takes the impact of fem stations＇ location into account and improves the fairness of non-cooperative game. On this basis, this paper proposes a distributed power control algorithm and proves the existence and uniqueness of Pareto optimal point. The simulation results show that the algorithm improves the convergence speed and system performance through improving users＇ SINR.This paper studies the power control problem in femtocell system based on Nash non-cooperative game theory. It designs an utility function taking fem stations＇ transmit power as variable and relates it to the requirements of macro users＇ and fem users＇ signal to interference plus noise ratio （SINR）. The utility also takes the impact of fem stations＇ location into account and improves the fairness of non-cooperative game. On this basis, this paper proposes a distributed power control algorithm and proves the existence and uniqueness of Pareto optimal point. The simulation results show that the algorithm improves the convergence speed and system performance through improving users＇ SINR.

关 键 词：Nash non-cooperative game power control utility function 

分 类 号：TN929.5[电子电信—通信与信息系统]