Low Complexity LDPC Decoder with Modified Sum-Product Algorithm

被引：0
|
作者：
Chen Qian [1 ]
Weilong Lei [1 ]
Zhaocheng Wang [1 ]
机构：
[1] Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University
来源：
Tsinghua Science and Technology | 2013年 / 18卷 / 01期
关键词：
Low Density Parity Check (LDPC) code; decoding; look-up table;
D O I：
暂无
中图分类号：
TN911.22 [信道编码理论];
学科分类号：
070104 ; 081101 ;
摘要：
This paper describes an efficient implementation of the Sum-Product Algorithm (SPA) within a Low Density Parity Check (LDPC) code decoder, where a horizontal process correction term is used to improve the decoding performance of the Min-Sum algorithms. The correction term is implemented as a look-up table. The algorithm uses the correction term redundancy by means of a coordinate transformation to reduce the hardware complexity. Simulations and hardware tests indicate that the decoding performance is very good with the appropriate look-up table.
引用
收藏
页码：57 / 61
页数：5
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