【作者】 王正强； 蒋铃鸽； 何晨；

【Author】 Wang Zheng qiang Jiang Ling ge He Chen (Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

【机构】 上海交通大学电子工程系；

【摘要】 采用博弈论方法对受干扰温度约束的认知无线网络进行建模分析,证明了该博弈问题纳什均衡解的存在性和惟一性,并提出一个分布式的功率控制算法。该算法只需要各次用户知道局部信道状态信息,从而比集中式的功率控制算法具有更小的信令开销。仿真结果表明该算法的具有很快的收敛速度,同时保证了测量点处的干扰温度要求,从而实现了对于主用户网络的严格保护。更多还原

【Abstract】 A game theoretic solution for power control in cognitive radio network under the interference temperature constraints was proposed.The existence and uniqueness nash equilibrium of power control game is proved and a distributed algorithm is proposed.The algorithm has the advantage of a low overhead for information exchange than centralized power control algorithm since the cognitive users only need local information.Simulation results show that the convergence of the proposed algorithm is fast and interference temperature is not exceed,so the strict protection of the primary user’s network is realized by the algorithm.更多还原