Aiming at the problems of high energy consumption in base stations of cellular network and less communication business demand of users,some of the base stations with only small communication business are rested,and cross-community relay collaborative communication is implemented by using wireless relay collaboration. The relay nodes of which output of information sink meets maximum signal to noise ratio are selected,and then the relay nodes with minimum collaborative efficiency are removed in proper order,thus the selection results are successively optimized. The results of simulation show that in such communication process,the iterative relay selection algorithm can select the relay nodes with highest collaborative efficiency;which can improve the collaborative efficiency in community,and enhance the energy efficiency of wireless communication.%针对蜂窝网中基站能耗过高、用户通信业务需求较小的问题,休眠部分通信业务较少的基站,并采用无线中继协作实现跨小区中继协作通信.选择满足信宿输出信噪比最大的中继节点,依次删除协作效率最小的的中继节点,从而逐次优化中继选择结果.仿真结果表明,在跨小区中继协作的通信过程中,采用中继选择算法,能得到协作效率最高的中继节点,改善了小区内中继协作效率,提高了无线通信能效.
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