CDMA中波束成型方法的研究  

Study of Beam Forming Methods in a CDMA System

作　　者：杜志敏[1] 周胜[1] 龚平[1] 吴伟陵[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《北京邮电大学学报》2001年第3期65-69,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金重大资助项目 (6 9896 2 43)

摘　　要：提出一种新的预波束成型方法——多用户角度匹配法 ,并研究了基于它的智能扇区系统调整策略和阻塞性能 ,仿真结果表明 :相比于两种常用波束成型方法 ,该方法有更优的平均信干比增益 ;所提出的智能扇区系统可明显提高集群效率 。A new beam forming method for switched beam smart antenna application in a CDMA system is proposed.The working principle and blocking characteristic of a new smart sector system based on it are also studied.Simulations show that our beam forming method outperforms two traditional ones.The proposed smart sector system can obviously improve the trunking efficiency,especially when users' DOA follows nonuniform distribution.

关 键 词：多用户角度匹配法 波束成型 码分多址 

分 类 号：TN914.53[电子电信—通信与信息系统]