Title :
Spatially Coupled Repeat-Accumulate Codes
Author :
Johnson, Stanley ; Lechner, Gottfried
Author_Institution :
Univ. of Newcastle, Newcastle, NSW, Australia
Abstract :
In this paper we propose a new class of spatially coupled codes based on regular repeat-accumulate codes. We show that these codes have several advantages over spatially coupled regular low-density parity-check codes including simpler encoders and slightly higher code rates when the thresholds and decoding complexity (as measured by the Tanner graph edge density) are similar.
Keywords :
communication complexity; convolutional codes; parity check codes; Tanner graph edge density; code rate; decoding complexity; encoder; low density parity check code; regular repeat accumulate code; spatially coupled code; thresholds; Complexity theory; Convolutional codes; Couplings; Decoding; Encoding; Iterative decoding; Spatial coupling; density evolution; low-density parity-check codes; repeat-accumulate codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.010313.122343
