电信科学 ›› 2011, Vol. 27 ›› Issue (6): 74-78.doi: 10.3969/j.issn.1000-0801.2011.06.017

• 研究与开发 • 上一篇    下一篇

LTE系统中Turbo译码的改进算法

郭健1,苏军峰2,谈振辉1   

  1. 1 北京交通大学宽带无线移动通信研究所 北京 100044
    2 北京交通大学电子信息工程学院 北京 100044
  • 出版日期:2011-06-15 发布日期:2011-06-15
  • 基金资助:
    国家自然科学基金资助项目(新一代移动通信系统中基于位置信息的无线资源管理研究)

Improved Algorithm of Turbo Decoding in LTE System

Jian Guo1,Junfeng Su2,Zhenhui Tan1   

  1. 1 Institute of Broadband Wireless Mobile Communications,Beijing Jiaotong University,Beijing 100044,China
    2 School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing 100044,China
  • Online:2011-06-15 Published:2011-06-15

摘要:

LTE系统对可靠通信提出了更高的要求,这在一定程度上依赖于信道编码的性能。针对LTE系统中的Turbo译码算法进行了研究,在Max-Log-MAP和Log-MAP算法的基础上提出了一种改进算法。理论分析和仿真结果表明,这种改进算法的性能有进一步提升,并且更加易于硬件实现,具有较低的复杂度。

关键词: 长期演进, Turbo码, Max-Log-MAP, 改进算法

Abstract:

LTE system requires reliable communication of higher standard,which depends on channel coding performance to some extent.In this paper,decoding algorithm of Turbo codes in LTE system is researched and an improved algorithm is presented based on the Max-log-MAP and Log-MAP algorithms.Theoretical analysis and simulation result show that the performance of this improved algorithm is promoted ulteriorly,it is easy to hardware implementation and has lower complexity.

Key words: LTE, Turbo codes, Max-Log-MAP, improved algorithm

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