Title :
CTH08-1: Construction of High Performance and Efficiently Encodable Nonbinary Quasi-Cyclic LDPC Codes
Author :
Zhou, Bo ; Tai, Ying Y. ; Lan, Lan ; Song, Shumei ; Zeng, Lingqi ; Lin, Shu
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Davis, CA
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
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.
Keywords :
AWGN channels; Galois fields; Reed-Solomon codes; cyclic codes; iterative decoding; parity check codes; AWGN channel; Galois field; Reed-Solomon codes; algebraic methods; codes construction; iterative decoding; nonbinary finite fields; nonbinary quasi-cyclic LDPC codes; storage systems; AWGN channels; Additive white noise; Galois fields; Gaussian noise; Interference; Iterative decoding; Parity check codes; Performance gain; Reed-Solomon codes; Working environment noise;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.75
