摘要
为最小化认知无线电系统的干扰水平,同时保证主用户的正常通信,提出了一种改进的基于博弈论的分布式信道分配算法,将次用户间的相互博弈构建为潜在博弈模型。效用函数不仅考虑了每个次用户对其他次用户和主用户的干扰,同时也考虑了其他次用户和主用户所产生的干扰。仿真结果表明,该算法具有较好的收敛性,分配结果能使主用户获得较好的吞吐量。
In order to minimize system interference of cognitive radio and guarantee prime users＇ normal communication,an improved channel allocation algorithm based on game theory is proposed and the channel allocation problem is formulated as a potential game.The utility function not only takes the interference that each secondary user causes to other secondary users and prime users into consideration,but also the interference of other secondary users and prime users produce to each secondary users.Simulation results show that this algorithm has good performance in convergence and throughput of prime users.
出处
《重庆邮电大学学报（自然科学版）》
北大核心
2012年第1期24-28,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
网络与交换技术国家重点实验室开放课题(SKLNST-2009-1-07)~~
关键词
认知无线电
信道分配
博弈论
cognitive radio
channel allocation
game theory
