Title :
A Construction of Physical-Layer Systematic Raptor Codes Based on Protographs
Author :
Kuo, Shiuan-Hao ; Lee, Huang-Chang ; Ueng, Yeong-Luh ; Lin, Mao-Chao
Abstract :
A construction of physical-layer Raptor (PLR) codes based on protographs is proposed. We first set up a sequence of signal-to-noise ratios (SNRs). For each SNR, we employ a modified protograph EXIT analysis to find the extra check nodes in addition to the existing check nodes so as to meet the threshold required by the outer low-density parity check code. PLR codes which are capacity-approaching for a wide SNR range can be obtained using the proposed construction.
Keywords :
Intellectual property; Iterative decoding; Niobium; Signal to noise ratio; Systematics; Throughput; Protograph; physical-layer Raptor code; protograph;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2448678
