中文摘要：

为了降低长期演进技术增强（10ngtermevolution-advanced，LTE_A）网络中资源分配时的功率消耗，提高小区边缘用户频谱利用率，提升系统吞吐量，提出了LTE-A网络中基于下行协作多点传输（coordinated multi-pointtransmission／reception，CoMP）技术的跨层功率分配优化方法。该方法在传统功率分配方法的基础上引入了联合处理（jointprocessing／transmission，JP）技术，并对其进行了分析；接着将无线链路控制（radio1inkcontrol，RLC）层的用户队列状态信息情况考虑到物理层的功率分配算法模块中，建立了新的跨层功率分配方案，并且使用了遗传算法对该方案进行求解；仿真结果表明和传统的几种方法比较起来，有效提高了小区平均频谱效率和边缘频谱效率，减少了功率浪费。

英文摘要：

In order to reduce power consumption in allocating network resources in Long Term EvolutiowAdvanced network, im- prove the edge area user ＂s spectrum efficiency and the system＇s throughput, it provided a cross layer power allocation optimiza- tion method based on downlink CoMP （coordinated multi-point transmission/reception） technology in LTE-A network. This method use Joint processing/transmission from traditional power allocation method , and analyze this technology, then user＇s queue status information in RLC Layer are considered into the power allocation algorithm module in physical layer, then it estab- lish a new cross layer power allocation scheme and use genetic algorithm to check this scheme, finally simulation result shows that the proposed scheme can improve the edge users; frequency spectrum efficiency and the cell average spectrum efficiency, re- duce the waste of the power resources compared with other traditional methods.