作　　者： ;

机构地区： 广东东软学院

出　　处： 《新一代信息技术》 2019年第14期1-5,共5页

摘　　要： 为了提升多小区无线网络基站间的协作通信的整体性能,改善小区边缘用户的通信效率,提出了一种减少基站间交互信息的协作多点优化方案。该方案在基站间共享数据信息以及信道信息和预编码信息的基础上,对基站间交互部分信道信息的情况进行分析,并据此得出功率约束条件下的最优下行预编码。通过使用凸优化工具,设计了一种新的估计方案和迭代算法来解决优化问题。仿真结果表明,该方案能使系统性能增益在30%以上,并且具有较低的复杂度和较高的传输效率,能够减少基站间所需交互的信息。 In order to improve the overall performance of cooperative communication between base stations in multi-cell wireless networks and improve the communication efficiency of cell edge users,a cooperative multi-point optimization scheme is proposed to reduce the interaction information between base stations.Based on the sharing of data information,channel information and precoding information between base stations,the interactive partial channel information between base stations is analyzed,and the optimal downlink precoding under power constraints is obtained.By using convex optimization tool,a new estimation scheme and iterative algorithm are designed to solve the optimization problem.The simulation results show that the scheme can make the system performance gain of more than 30%,and has low complexity and high transmission efficiency,and can reduce the interaction information between base stations.

关 键 词： 协作多点 多入单出 交互信息 无线网络 最大比合并

领　　域： []