基于认知无线电系统的新型合作功率控制博弈算法  

Novel cooperative power control game algorithm for cognitive radio systems

作　　者：程世伦[1] 杨震[1] 张晖 

机构地区：[1]南京邮电大学信号处理与传输研究院,江苏南京210003 [2]江苏省图像处理与图像通信重点实验室,江苏南京210003

出　　处：《通信学报》2007年第8期54-60,共7页Journal on Communications

基　　金：教育部重点科技基金资助项目(206055);江苏省高校自然科学重大基础研究资助项目(06KJA51001)~~

摘　　要：以改进的空时分集OFDM-CDMA系统为基础,研究已认知频谱资源的公平分配问题,根据信道状况,吞吐量最大化和功率限制需求,提出了一种合作功率控制纳什议价博弈算法,以有效地降低认知用户(secondary users)的发射功率,提高网络吞吐量。仿真结果表明该算法满足了认知用户公平共享频谱资源的需求,在相同功率消耗情况下,网络吞吐量显著提高。In order to fair optimally allocate the limited cognitive radio resource, a cognitive radio system was developed based on STBC OFDM-CDMA network systems and a novel Nash bargaining solution named NBS of cooperative power control was adopted in this system, the transmitted power was dynamically adapted based on channel conditions, maximal network throughput and power limits. Simulation results show that the novel algorithm can regulate their transmitter powers, fair optimally allocate radio resource. At the same power consumption, the network throughput is thereby improved obviously.

关 键 词：认知无线电 合作功率控制 纳什议价博弈 OFDM-CDMA 

分 类 号：TN929.5[电子电信—通信与信息系统]