摘要
随着人们对无线通信系统高品质服务需求的增长,通信系统的研究者们提出了许多空时信号处理技术和算法来实现系统容量的增长。实践表明分层空时码在无线通信中的应用具有极大的优势。本文研究多入多出(MIMO,Multiple-Input-Multiple-Output)系统中不同个数的接收天线和不同个数的发射天线在准静态瑞利环境中满足互不相关条件下的抗衰落和抗噪声的性能。仿真主要是对ZF-V-BLAST算法的误码率性能进行比较和分析。该文对提高下行链路中的接收机的性能、系统容量和覆盖有很好的指导作用。
Abstract：With the increasing demand for high-quality wireless communication services ,researchers advanced many space-time signal processing technologies and algorithms to realize the system capacity growing. It has been proved that Bell laboratories Layered Space-time coding has great advantages when applied to the wireless communication. This paper studies the MIMO system＇s performance of anti-fading and anti-noise, with the antennas are uncorrelated and which in the quasi-static Rayleigh fading environment. The simulations compared and analyzed the bit error rate（BER） of ZF-V - BLAST algorithm. The results will help in improving the downlink receiver＇ s performace, system capacity and layover.
出处
《科技广场》
2007年第3期89-91,共3页
Science Mosaic
关键词
多入多出(MIMO)
分层空时编码
迫零算法
Multiple-Input-Multiple-Output
Bell Laboratories Layered Space-Time
Zero-Forcing algorithm
