Uniform channel decomposition method for vertical layered space-time coding communication system

垂直分层空时编码通信系统的均匀信道分解方法

Abstract

本发明公开了一种垂直分层空时编码通信系统的均匀信道分解方法,主要解决传统均匀信道分解方法受信道误差影响大的问题。其分解过程为:(1)发送端对获取的带有误差的信道矩阵H进行奇异值分解;(2)发送端和接收端分别利用奇异值分解出的酉矩阵U构造扩展矩阵J;(3)发送端和接收端分别对扩展矩阵J进行几何均值分解;(4)发送端根据奇异值分解得到的对角矩阵A和酉矩阵P<sub>J</sub>设计预处理矩阵F,并用此预处理矩阵对发送信号进行预处理;(5)接收端根据几何均值分解的结果得到后处理矩阵W的行向量;(6)接收端采用串行干扰抵消的方法对接收信号矢量y进行译码。本发明具有误码率低,系统容量高的优点,用于多输入多输出通信系统的收发机设计。
The invention discloses a uniform channel decomposition method for a vertical layered space-time coding communication system which mainly solves the problem that the traditional uniform channel decomposition method is greatly influenced by channel errors. The decomposition method is as follows: (1) a transmitting terminal carries out singular value decomposition on an obtained channel matrix*with errors; (2) the transmitting terminal and a receiving terminal respectively build an augmented matrix J by utilizing a unitary matrix*decomposed by the singular value; (3) the transmitting terminal and the receiving terminal respectively carry out geometric mean decomposition on the augmented matrix J; (4) the transmitting terminal designs a pretreatment matrix F according to a diagonal matrix*obtained according to the singular value decomposition and a unitary matrix P<J>, and the pretreatment matrix pretreats transmitting signals; (5) the receiving end obtains column vectors of an after-treatment matrix W according to results decomposed the geometric mean; (6) the receiving end decodes vectors y of the receiving signals by adopting a successive interference cancellation method. The method has the advantages of low bit error rate and high system volume and is used for the design of a transceiver of a multi-input multi-output communication system.

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Cited By (4)

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    CN-102647259-AAugust 22, 2012西安电子科技大学基于奇异值分解的多用户mimo系统上行链路传输方法
    CN-102647259-BSeptember 17, 2014西安电子科技大学Singular value decomposition-based method for uplink transmission of multi-user MIMO (Multiple-Input Multiple-Output) system
    CN-103023622-AApril 03, 2013电信科学技术研究院Signal detection method and signal detection equipment
    CN-103023622-BSeptember 30, 2015电信科学技术研究院一种信号检测方法和设备