基于非合作博弈的中继网络分布式资源分配

提出一种可应用于正交频分复用多址(OFDMA)中继网络的分布式资源分配算法. 基于将模型描述为基站与中继的非合作功率分配博弈(RNCPAG), 设计出2种效用函数, 并以最大化效用函数为准则, 证明在总功率受限的约束下, 该算法存在并收敛于唯一的纳什均衡点. 研究表明, 同传统的平均功率分配算法相比, 分布式博弈算法以牺牲少量的迭代步数为代价, 获得更高的系统容量和资源效率.

A Distributed Resource Allocation Scheme Based on Non-cooperative Game Theory for Relaying Networks

A distributed resource allocation scheme was proposed for relaying networks utilized orthogonal frequency division multiple access (OFDMA) technique. The problem was described as a relaying non- cooperative power allocation game (RNCPAG) between the node B and the relay node, and two utilities functions were exploited taking the maximum utility function as the optimization criterion. Moreover, on the constraints of the limited total transmission power, the existence of Nash equilibrium was investigated, while the proposed algorithm converged to a unique Nash equilibrium. Compared with the traditional uniform power allocation scheme, the study shows that the proposed scheme can significantly improve the performance in terms of system capacity and resource utilization within a few steps of iteration.