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

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

科研通信

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

作者信息 +

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

Author information +

文章历史 +

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.

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.

导出引用

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. https://doi.org/10.3969/j.issn.0372-2112.2016.04.032

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. https://doi.org/10.3969/j.issn.0372-2112.2016.04.032

中图分类号： TN911

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