CTH08-1: Construction of High Performance and Efficiently Encodable Nonbinary Quasi-Cyclic LDPC Codes
Bo Zhou, Ying Yu Tai, Lan Lan, Shumei Song, Lingqi Zeng, Shu Lin · Globecom · 2006
This paper presents a general and three specific algebraic methods for constructing efficiently encodable non-binary quasi-cyclic LDPC codes. Three classes of quasi-cyclic LDPC codes over nonbinary finite fields are constructed. codes constructed perform very well over the AWGN channel with iterative decoding and achieve large coding gains over the Reed-Solomon codes of the same parameters. Nonbinary LDPC codes may be used to replace Reed-Solomon codes in some communication environments or storage systems for combating mixed types of noises and interferences.