多小区分布式发射天线位置优化  

Antenna Location Optimization for Distributed Transmit Antennas in a Multicell Environment

作　　者：刘田[1] 杨琳[1] 韩亮[1] 唐友喜[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,四川成都611731

出　　处：《电子学报》2011年第12期2721-2725,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60832007;No.60902027;No.60901018;No.61001087);中央高校基本科研业务费专项资金资助项目(No.ZYGX2010J012;No.ZYGX2009J010);国家科技重大专项(No.2010ZX03003-002-01;No.2011ZX03001-006-01)

摘　　要：在分布式发射天线的多小区环境下,分析了多层同频干扰对小区平均遍历容量及天线位置的影响,给出了分布式天线位置选择与小区平均遍历容量的关系.数值分析和仿真结果表明外围的第一层同频小区干扰能量决定了分布式天线的最佳位置摆放,在半径1000m的小区中,各天线距离小区中心450m附近时,小区的平均遍历容量达到峰值.The effect of co-channel interference of multiple tiers of cells on both average ergodic capacity and optimal antenna location is analyzed in a multicell environment with distributed transmit antennas,and the relationship between the optimal antenna location and the average ergodic capacity is also studied.Numerical analysis and simulation results show that the optimal distributed antenna location is determined by the interference energy of the first tier of peripheral co-channel interfering cells.For example,In a cell with a typical radius of 1000 meters,the average ergodic capacity of the cell reaches the peak when all antennas are located at about 450 meters from the center.

关 键 词：无线通信 分布式天线系统 天线位置优化 多小区干扰 遍历容量 

分 类 号：TN92[电子电信—通信与信息系统]