自适应天线阵列在码分多址通信系统中的应用  

Application of adaptive antenna arrays in CDMA cellular system

作　　者：程荣[1] 赵晓晖[2] 杨秀华[1] 闫晓明[1] 

机构地区：[1]长春邮电学院图书馆,吉林长春130012 [2]长春邮电学院通信工程系,吉林长春130012

出　　处：《光学精密工程》2000年第5期432-436,共5页Optics and Precision Engineering

基　　金：信息产业部重点科技发展计划项目! ( 970 67)

摘　　要：将自适应天线阵列应用于 CDMA移动通信系统中 ,可抑制多址干扰的影响 ,提高系统的容量。研究了自适应天线阵列的组成及其自适应算法 ,并对采用了自适应天线阵列的 CDMA系统进行了性能分析。理论分析和数值仿真的结果表明 ,与使用单一全向天线的系统相比 ,基站采用自适应天线阵列 ,改善了系统反向链路的性能 。The use of adaptive antenna arrays in code division multiple access cellular communication system at base station is presented since the arrays have the ability to suppress the interference of multiple access and increase the capacity of the cellular system. The composition and adaptive algorithms of the arrays are studied. The performance of the proposed system is analyzed. Both theoretical analysis and numerical simulation results demonstrate that using the adaptive antenna arrays at base station, the performance of the system is improved and its capacity is increased comparing with those of the omnidirectional antenna system.

关 键 词：码分多址 多址干扰 自适应天线阵列 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]