4 papers
4-Cycle Free Spatially Coupled LDPC Codes with an Explicit Construction
Zeinab Roostaie, Mohammad Gholami, Farzad Parvaresh
Spatially coupled low-density parity-check (SC-LDPC) codes are a class of capacity approaching LDPC codes with low message recovery latency when a sliding window decoding is used.…
An Efficient Algorithm for Counting Cycles in QC and APM LDPC Codes
Mohammad Gholami, Zahra Gholami
In this paper, a new method is given for counting cycles in the Tanner graph of a (Type-I) quasi-cyclic (QC) low-density parity-check (LDPC) code which the complexity mainly is dep…
Quasi Cyclic LDPC Codes Based on Finite Set Systems
Mohammad Gholami, Mehdi Samadieh
A finite set system (FSS) is a pair (V; B) where V is a finite set whose members are called points, equipped with a finite collection of its subsets B whose members are called bloc…
Column Weight Two and Three LDPC Codes with High Rates and Large Girths
Mohammad Gholami, Ghaffar Raeisi
In this paper, the concept of the {\it broken diagonal pair} in the chess-like square board is used to define some well-structured block designs whose incidence matrices can be con…