Distributed interference suppression scheme for multi-cell uplink OFDMA system based on non-cooperative game  

作　　者：CHANG Ling-jun TANG Bi-hua XIE Gang ZENG Ling-kang LIU Kai-ming 

机构地区：[1]School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2011年第2期65-71,共7页中国邮电高校学报（英文版）

基　　金：supported by the Sino-Swedish IMT-Advanced Cooperation Project (2008DFA11780);the Canada-China Scientific and Technological Cooperation (2010DFA11320);the National Natural Science Foundation of China (60802033, 60873190);the Hi-Tech Research and Development Program of China (2008AA01Z211);the Fundamental Research Funds for the Central Universities (2009RC0308)

摘　　要：In this paper,a distributed interference suppression scheme is proposed for multi-cell uplink orthogonal frequency division multiple access（OFDMA） system.Firstly,we model resource allocation process as a non-cooperative game.Then we show the concept of Nash equilibrium（NE） and investigate its existence and uniqueness in detail.To enhance the performance of multi-cell OFDMA system,the further improvement process based on NE is given.Several adjustable parameters are set to make the system achieve different tradeoffs between the total capacity and complexity.Simulation results show that the proposed scheme can greatly improve the system performance comparing with conventional scheme.In this paper,a distributed interference suppression scheme is proposed for multi-cell uplink orthogonal frequency division multiple access（OFDMA） system.Firstly,we model resource allocation process as a non-cooperative game.Then we show the concept of Nash equilibrium（NE） and investigate its existence and uniqueness in detail.To enhance the performance of multi-cell OFDMA system,the further improvement process based on NE is given.Several adjustable parameters are set to make the system achieve different tradeoffs between the total capacity and complexity.Simulation results show that the proposed scheme can greatly improve the system performance comparing with conventional scheme.

关 键 词：MULTI-CELL non-cooperative game OFDMA uplink ICI 

分 类 号：TN925.93[电子电信—通信与信息系统] F224.32[电子电信—信息与通信工程]