Explicit Constructions for Type-1 QC-LDPC Codes With Girth 12
Guohua Zhang, Rudolf Mathar · IEEE Communications Letters · 2016
Given any J × J (J > 3) square matrix over ZPsuch that the differences of any two row vectors contain each element in ZPat most once, a class of (3, L)-regular quasicyclic low-density parity-check codes is explicitly constructed with lengths P J L2and girth 12, where L is any integer satisfying 3 <; L ≤ J. Simulation results show that the new codes perform very well for moderate rates and lengths.