【作者】 樊绍群； 王雷； 林家儒；

【Author】 Fan Shaoqun Wang Lei Lin jiaru (Information School Beijing University Of Posts and Telecommunications 100876)

【机构】 北京邮电大学信息工程学院；

【摘要】 多输入多输出(MIMO)技术可以大幅度提高系统的频谱利用率,提供空间分集增益提高传输可靠性。在实际使用过程中,产生了多种空时编码技术。分层空时码(Layered Space-Time Codes,简称 LST)是由贝尔实验室的Foschini等人提出的一种空时码,能够以简单的发送方式实现高频谱利用率, 它的关键在于接收端的检测算法。本文讨论了分层空时编码的ZF、QR、MMSE和排序MMSE四种检测算法,并对其性能进行了仿真比较。更多还原

【Abstract】 Multi-Input Multi-Output (MIMO) can improve the spectrum efficiency significantly and provide spatial diversity to prompt the transmit reliability. In practice, many space-time coding schemes were proposed to implement MIMO. The Layer Space-Time Code, proposed by Foschini of Bell labs, adopted a simple transmit method to realize high spectrum efficiency, whose key technique is the detections in the receiver. In this paper, four detection algorithms for Layer Space-Time Codes, which are ZF、QR、MMSE and MMSE-IC, are investigated and compared.更多还原