摘要
基于CDMA移动通信系统中基站与移动台之间上下行信道的双向共性特征 ,通过基站对上行信号子空间分解 ,确定下行发射信号子空间特征 ,从而确定发射波束形成权矢量 .它不需要估计所有用户的DOA和多径幅度信息 ,计算机仿真进一步显示了算法的性能 .
This paper is based on the fact that bidirectional commonalty holds between up link and down link channel states in CDMA mobile communication. The down link signal sub space state is defined by the up link signal sub space decomposition, and then down link beam forming weights are generated. This method proposed requires neither the detection of other signals nor the knowledge about average signal strength information. The performance of algorithms proposed is illustrated by computer simulation.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2000年第6期686-690,共5页
Journal of Xidian University
基金
国家自然科学基金资助项目 !(6 98310 40 )
国家"86 3"计划资助项目
