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应用科学学报 >

2012 , Vol. 30 >Issue 1: 19 - 24

DOI: https://doi.org/10.3969/j.issn.0255-8297.2012.01.004

通信工程

用于TD-LTE系统的排序串行干扰消除迭代检测译码

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  • 中国科学技术大学个人通信与扩频实验室，合肥230027
作者简介：张正宇，博士生，研究方向：鲁棒的MIMO传输技术，E-mail: zhzy@mail.ustc.edu.cn；邱玲，教授，博导，研究方向：CDMA通信、无线资源管理、空时信号处理、多用户MIMO、协作通信、绿色通信，E-mail: lqiu@ustc.edu.cn

收稿日期: 2011-02-23

  修回日期: 2011-06-09

  网络出版日期: 2012-01-30

基金资助

国家科技重大专项基金(No.2010ZX03002-003-001)资助

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Iterative Detection Decoding Based on Ordered Successive Interference Cancelation for TD-LTE Systems

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  • Personal Communications Network and Spectrum Spread Laboratory,
    University of Science and Technology of China, Hefei 230027, China

Received date: 2011-02-23

  Revised date: 2011-06-09

  Online published: 2012-01-30

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摘要

针对时分长期演进多输入多输出系统中的多码字传输模式，分析自适应调制编码和混合自动请求重传对排序串行干扰消除检测顺序的影响，提出一种新型的排序串行干扰消除迭代检测译码算法，并分析该算法的复杂度. 仿真结果表明该算法能够有效提高系统吞吐量，且码字调制编码等级差异越大，MIMO阶数越高，该算法的性能增益越明显.

关键词： 多输入多输出; 自适应调制编码; 混合自动请求重传; 干扰消除; 迭代检测译码

本文引用格式

张正宇， 邱玲 . 用于TD-LTE系统的排序串行干扰消除迭代检测译码[J]. 应用科学学报, 2012 , 30(1) : 19 -24 . DOI: 10.3969/j.issn.0255-8297.2012.01.004

Abstract

Abstract: This paper proposes an iterative detection decoding algorithm based on ordered successive interference cancelation (OSIC) for time division long term evolution (TD-LTE) multi-input multi-output (MIMO)
systems. In the algorithm a multiple-codewords transmission mode is used, and the effects of adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) on the detection order are taken into
consideration. Computation complexity of the algorithm is analyzed. Numerical results show that the proposed
method can significantly improve throughput. The performance gain increases with the increase of gaps
between modulation and coding levels of multiple codewords, and the increase of the number of transceiver
antennas.
Keywords:

Key words： multi-input multi-output (MIMO); adaptive modulation and coding; hybrid automatic repeat
request; interference cancelation; iterative detection decoding

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