Title :
A New Scheme of High Performance Quasi-Cyclic LDPC Codes With Girth 6
Author :
Vafi, Sina ; Majid, Narges Rezvani
Author_Institution :
Sch. of Eng. & Inf. Technol., Charles Darwin Univ., Darwin, NT, Australia
Abstract :
The letter presents a new technique for constructing regular and irregular quasi-cyclic (QC) low density parity check (LDPC) codes with girth 6. Codes are designed by the combinatorial concept, in which subsets representing circulant matrices are originated from a particular subset. Conducted simulations confirm that implemented codes have low error floor, while they provide good performance in the waterfall region.
Keywords :
combinatorial mathematics; cyclic codes; matrix algebra; parity check codes; circulant matrices; combinatorial design; girth 6; high performance irregular QC low density parity check codes; high performance irregular quasicyclic LDPC codes; high performance regular QC low density parity check codes; high performance regular quasicyclic LDPC codes; low error floor; waterfall region; Australia; Bit error rate; Broadband communication; Encoding; Geometry; Iterative decoding; Circulant matrix; Combinatorial designs; Quasi-Cyclic LDPC codes; Quasi-cyclic LDPC codes; circulant matrix; combinatorial designs;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2458322
