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Study of Structured Root-LDPC Codes and PEG Techniques for Block-Fading Channels

2015/12/08 by Cornelius T. Healy, Healy, C. T., André Gustavo Degraf Uchôa +3
Computer Science · Engineering · #Advanced Wireless Communication Techniques #Cooperative Communication and Network Coding #Error Correcting Code Techniques #FOS: Computer and information sciences #Information Theory (cs.IT)

paper · pdf · doi:10.48550/arxiv.1512.02520

openalex publication_date 2015/12/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In this work, we propose structured Root-Low-Density Parity-Check (LDPC) codes and design techniques for block-fading channels. In particular, Quasi-Cyclic Root-LDPC codes, Irregular repeat-accumulate Root-LDPC codes and Controlled Doping Root-LDPC codes based on Progressive Edge Growth (PEG) techniques for block-fading channels are proposed. The proposed Root-LDPC codes are both suitable for channels under F = 2, 3 and 4 independent fading per codeword. The performance of the proposed codes is investigated in terms of Frame Error Rate (FER). The proposed Root-LDPC codes are capable of achieving the channel diversity and outperform standard LDPC codes. For block-fading channel with F = 2 our proposed PEG-based Root-LDPC codes outperform PEG-based LDPC codes by 7.5dB at a FER close to 10-3.

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