在空间相关Rice信道下的一种基于非码本的预编码方法在LTE下行系统中的应用

doi:10.3969/j.issn.0372-2112.2016.04.032

电子学报 ›› 2016, Vol. 44 ›› Issue (4): 983-987.DOI: 10.3969/j.issn.0372-2112.2016.04.032

在空间相关Rice信道下的一种基于非码本的预编码方法在LTE下行系统中的应用

谢文武^1,2, 刘守印¹

1. 华中师范大学物理科学与技术学院, 湖北武汉 430079;
2. 上海晨思电子科技有限公司, 上海 201210

收稿日期:2014-12-01 修回日期:2015-06-24 出版日期:2016-04-25
- 作者简介:
- 谢文武 男,湖北荆州人.2004年、2007年分别在华中师范大学获学士和硕士学位.现为华中师范大学物理学院在读博士生,并在上海晨思电子科技有限公司信号处理部门任经理一职,主要从事无线通信算法相关领域研究工作. E-mail:xiewenwu123@sohu.com;刘守印 男,河南郸城县人.现为华中师范大学物理科学与技术学院教授.主要从事无线通信理论、物联网等领域的研究.先后获湖北省科学技术进步奖,武汉市科技发明奖,韩国政府邀请外国留学生"学术研究奖"等多项荣誉. E-mail:syliu@phy.ccnu.edu.cn

The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel

XIE Wen-wu^1,2, LIU Shou-yin¹

1. College of Physical Science and Technology, Central China Normal University, Wuhan, Hubei 430079, China;
2. Shanghai Chensi Electronic and Technology Co., Ltd., Shanghai 201210, China

Received:2014-12-01 Revised:2015-06-24 Online:2016-04-25 Published:2016-04-25

摘要/Abstract

摘要：

本文所提出的预编码生成方法适合在TD-LTE系统中工作,包括基于信道互易性获取信道状态信息模块,能量分配模块,波束形成模块.该方法充分利用了TDD系统的信道互易性特性,获取下行信道的信道状态信息,并使用基于非码本的预编码方式来增强传输的抗干扰性能,提升小区覆盖范围.与单纯考虑无视距LOS(Line-Of-Sight)分量的衰落信道不同,本文所提出的是在接收端天线之间存在空间相关的下行MIMO系统中,针对拥有LOS分量的莱斯(Rice)信道发射机的预编码设计方案.该方案可以保证非码本预编码算法的快速收敛,且保持较低的计算复杂度.

关键词: 预编码, LTE, 相关Rice信道, 非码本

Abstract:

This paper proposed a method to generate precoding,which is applicable to the TD-LTE system.This method contains three parts:channel state information (CSI) model,energy distribute model,and beam-forming model.This scheme fully uses the character of exchanging channel for the TDD system,which can obtain the CSI of the downlink channel,and enhances the performance of anti-interference by using the precoding based on the non-codebook.Furthermore,it can enlarge the range of the serving cell.The background of this paper is LTE downlink system equipped with these spatial-correlated receive antennas,where a transmitted precoding method is designed for Rice channel with LOS.This method can keep the precoding algorithm based on non-codebook at a quick convergence speed with low calculation complexity.

Key words: precoding, LTE, correlated rice channel, non-codebook

中图分类号:

TN911

谢文武, 刘守印. 在空间相关Rice信道下的一种基于非码本的预编码方法在LTE下行系统中的应用[J]. 电子学报, 2016, 44(4): 983-987.

XIE Wen-wu, LIU Shou-yin. The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel[J]. Acta Electronica Sinica, 2016, 44(4): 983-987.

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在空间相关Rice信道下的一种基于非码本的预编码方法在LTE下行系统中的应用

The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel

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