TD-SCDMA下行链路智能天线波束赋形算法仿真

Simulation of Downlink Smart Antennas Beamforming Algorithm Based on TD-SCDMA System

研究了TD-SCDMA系统下行链路最大信干比波束赋形算法,搭建下行链路的MATLAB仿真平台,并在TD-SCDMA系统下行链路的2种信道环境下,对最大信干比波束赋形算法进行了MATLAB仿真。实验结果表明,波束赋形技术能够有效地抑制多径衰落,总体性能优于全向发送技术,且能提高系统性能。

A beamforming algorithms based on maximal signal-to-interference ratio has been studied in downlink of TD-SCDMA system,and the downlink MATLAB simulation platform has been built.We simulate the beamforming algo- rithms based on maximal signal-to-interference ratio at two circumstances of downlink TD-SCDMA channel model using MATLAB.The result of experiment shows that beamforming technique can suppress multipath fading efficiently,and is better than Omnidirectional transmission technology to the extent of overall performance. Beamforming algorithms can improve the performance of TD-SCDMA system.