Title :
Quasi-cyclic ldpc code design for block-fading channels
Author :
Li, Yueqian ; Salehi, Masoud
Author_Institution :
Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA
Abstract :
We investigate quasi-cyclic low-density parity-check (QC-LDPC) codes for nonergodic block-fading channels. A construction method for designing QC-LDPC codes is presented. With careful design, the proposed QC-LDPC codes exhibit the same good performance as their corresponding random root- LDPC codes introduced in using iterative belief-propagation (BP) decoding. Moreover, the structure of the proposed QCLDPC codes makes an efficient encoding method possible.
Keywords :
fading channels; iterative decoding; parity check codes; LDPC code design; encoding method; iterative belief-propagation decoding; nonergodic block-fading channels; quasi-cyclic LDPC code; quasi-cyclic low-density parity-check investigate codes; Bipartite graph; Costs; Design methodology; Fading; Iterative decoding; Mobile communication; Parity check codes; Quantum cascade lasers; Rayleigh channels; Shift registers; Block-fading channels; efficient encoding; quasicyclic low-density parity-check (QC-LDPC) codes;
Conference_Titel :
Information Sciences and Systems (CISS), 2010 44th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-7416-5
Electronic_ISBN :
978-1-4244-7417-2
DOI :
10.1109/CISS.2010.5464729
