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.
出处
《光学精密工程》
EI
CAS
CSCD
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)
关键词
码分多址
多址干扰
自适应天线阵列
移动通信
code division multiple access
multiple access interference
adaptive antenna arrays
