基于非理想信道状态信息的最小化均方误差非线性收发机设计

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (11): 1806-1810.

• 无线电电子学、电信技术 • 上一篇下一篇

基于非理想信道状态信息的最小化均方误差非线性收发机设计

耿烜1, 何迪2

（1.上海海事大学信息工程学院，上海 201306；2.上海交通大学电子信息与电气工程学院，上海 200240）

收稿日期:2011-11-19 出版日期:2012-11-30 发布日期:2012-11-30
基金资助:
国家自然科学基金资助项目（60905065），交通部基础研究项目（2010318810019）

Minimum Mean Square Error Non-linear Transceiver Design Based on Imperfect Channel State Information

GENG Hui-1, HE Di-2

(1. College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China; 2. School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2011-11-19 Online:2012-11-30 Published:2012-11-30

摘要/Abstract

摘要： 在多输入多输出系统中，当收发端已知非理想信道状态信息时，提出了一种基于最小化均方误差准则的非线性收发机设计方法，其结构基于汤姆林森-哈拉希玛预编码(THP).首先研究了收发信号的均方误差表达式，并将其转换为预编码矩阵的函数;然后,通过最优化及矩阵论方法最小化均方误差的下界，求解最优预编码矩阵以及下界的闭式解，进而获得整个非线性收发机矩阵.仿真结果表明，该方法性能优于现有的线性收发机设计和经典的THP收发机设计.

关键词: 非线性收发机, , , 非理想信道状态信息, , , , , 最小化均方误差, , 空间相关

Abstract: A design method for nonlinear transceiver with Tomlinson-Harashima precoding(THP) structure was proposed based on minimum mean square error (MSE) criterion, when the transceiver knows the imperfect channel state information (CSI) for multiple-input multiple-output (MIMO) system. The MSE is derived firstly, and then transformed as the function of only one variable being precoding matrix. By minimizing the lower bound of MSE using optimization and matrix theory, the optimal precoding matrix and the closed-form of the lower bound are obtained, so that the total non-linear transceiver matrices are solved. The simulation results show that the proposed method outperforms the existing linear transceiver and the classic THP transceiver.

Key words: non-linear transceiver, imperfect channel state information, minimum mean square error(MSE), spatial correlation

中图分类号:

TN 911.72

耿烜1, 何迪2. 基于非理想信道状态信息的最小化均方误差非线性收发机设计[J]. 上海交通大学学报（自然版）, 2012, 46(11): 1806-1810.

GENG Hui-1, HE Di-2. Minimum Mean Square Error Non-linear Transceiver Design Based on Imperfect Channel State Information[J]. Journal of Shanghai Jiaotong University, 2012, 46(11): 1806-1810.

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基于非理想信道状态信息的最小化均方误差非线性收发机设计

Minimum Mean Square Error Non-linear Transceiver Design Based on Imperfect Channel State Information

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