广义交叉乘积累加码

Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (4): 682-685.

广义交叉乘积累加码

郭凯, 陈彦辉, 李建东

（西安电子科技大学综合业务网理论与关键技术国家重点实验室信息科学研究所宽带无线通信实验室，陕西西安 710071）

出版日期:2010-04-23 发布日期:2010-01-03

Generalized crossover product accumulate codes

GUO Kai, CHEN Yan-hui, LI Jian-dong

(Broadband Wireless Communications Laboratory, Information Science Inst., State Key Laboratory of Integrated Service Networks, Xidian Univ., Xi’an 710071, China）

Online:2010-04-23 Published:2010-01-03

摘要/Abstract

摘要：

为设计具有线性编、译码复杂度及逼近香农限性能的信道编码结构，在并行级联的单奇偶校验码之间引入交叉结构以构成外码，以累加器为内码，提出了一种新的串行级联编码——广义交叉乘积累加码。以外信息转移图为工具对广义交叉乘积累加码进行设计，并给出一个广义交叉乘积累加码的设计示例。分析及仿真结果表明，该示例具有线性编、译码复杂度，其收敛门限距香农限仅有约0.32 dB的距离。

Abstract:

To design channel codes with linear encoding/decoding complexity and performance approaching the Shannon limit, a kind of serial concatenated codes, termed generalized crossover product accumulate (GCPA) codes, is proposed. The outer code of GCPA codes is constructed by introducing a crossover structure into parallelconcatenated single parity-check codes and an accumulator is used as the inner code. Extrinsic information transfer (EXIT) charts are used to design GCPA codes and a design example of GCPA codes is given. Simulations show that the example has linear encoding/decoding complexity and a convergence threshold about 0.32 dB from the Shannon limit.

郭凯, 陈彦辉, 李建东. 广义交叉乘积累加码[J]. Journal of Systems Engineering and Electronics, 2010, 32(4): 682-685.

GUO Kai, CHEN Yan-hui, LI Jian-dong. Generalized crossover product accumulate codes[J]. Journal of Systems Engineering and Electronics, 2010, 32(4): 682-685.