空时编码系统中盲多用户检测方法的研究

Blind Multi-User Detection for Space-time Block Code System

文章将空时编码和盲多用户检测相结合,提出了一种适合下行链路的接收机。该方法可以在克服信道衰落的同时抑制多址干扰,在下行链路的接收方只需进行简单解码和盲多用户检测就可以获得同采用多天线接收相同的效果,具有较好的跟踪能力,且采用级联处理,计算量小。Monte Carlo仿真结果证明了其有效性。

In this paper,a novel receiver for downlink of CDMA system is proposed by combining Space-Time Block Code （STBC） with blind Multi-User Detection （MUD）,which can suppress multiple address Interference （MAI） and channel fading simultaneously.By this way,the effect similar to Multiple Antennas is obtained for the receiver of downlink only encoding the received signals and deciding them by blind mud algorithm,It has better ability of tracking and lower computational complexity because of being a cascade structure.Simulations undertaken show that this way is effective.