UEP Constructions of Quasi-Cyclic Low-Density Parity-Check Codes via Masking

Chi Jen Wu, Chung-Hsuan Wang, Chi Chao Chao

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

In this paper, the algebraic constructions of quasi-cyclic low-density parity-check (QC-LDPC) codes with the unequal error protection (UEP) property are considered. A criterion for constructing such codes via the masking technique is proposed, based on which explicit conditions on the base parity-check matrices and masking matrices to achieve UEP are provided. We also give three specific constructions of UEP QC-LDPC codes. Furthermore, a sufficient condition to ensure strict UEP is presented. Simulation results demonstrate the superiority of our constructed codes over time-sharing schemes. The constructed codes also have competitive error performance against randomly constructed equal-error-protection LDPC codes and irregular UEP LDPC codes designed based on the degree distribution.

原文English
文章編號8012484
頁(從 - 到)6271-6294
頁數24
期刊IEEE Transactions on Information Theory
63
發行號10
DOIs
出版狀態Published - 1 10月 2017

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