Title :
Constructions of irregular nonbinary QC-LDPC codes: Cyclotomic coset approach
Author :
Meng Lu ; Lijun Zhang
Author_Institution :
Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
A cyclotomic coset approach for constructions of irregular nonbinary quasi-cyclic low-density parity-check (QC-LDPC) codes of short length is proposed. QC-LDPC codes obtained by this method perform reasonably well over the additive white Gaussian noise (AWGN) channel with iterative decoding in terms of bit-error performance, error-floor, and decoding convergence with low decoding complexity.
Keywords :
AWGN channels; cyclic codes; decoding; error statistics; parity check codes; AWGN channel; additive white Gaussian noise channel; bit-error performance; cyclotomic coset approach; decoding complexity; decoding convergence; error-floor; irregular nonbinary QC-LDPC code; irregular nonbinary quasi-cyclic low-density parity-check code; iterative decoding; cyclotomic coset; low decoding complexity; nonbinary LDPC codes; quasi-cyclic;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6491852
