一种适用于DAMB的LDPC码设计方案

Journal of Applied Sciences ›› 2006, Vol. 24 ›› Issue (6): 647-649.

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Design of Low-Density Parity-Check Codes for Digital Amplitude Modulation Broadcasting System

WANG Jia-qing, YU Xiao-yan, WU Le-nan

Department of Radio Engineering, Southeast University, Nanjing 210096, China

Received:2005-05-30 Revised:2005-10-10 Online:2006-11-30 Published:2006-11-30

Abstract

Abstract: The recently proposed extrinsic information transfer (EXIT) chart is a powerful yet simple method for optimizing irregular low-density parity-check (LDPC) codes.In this paper, the technique is applied to a digital amplitude modulation broadcasting (DAMB) system with satisfactory results.Simulation results show that optimized LDPC codes outperform turbo codes in various broadcast channels.This may provide references in developing DAMB systems.

Key words: EXIT chart, OFDM, LDPC codes, DAMB

CLC Number:

TN911

WANG Jia-qing, YU Xiao-yan, WU Le-nan. Design of Low-Density Parity-Check Codes for Digital Amplitude Modulation Broadcasting System[J]. Journal of Applied Sciences, 2006, 24(6): 647-649.

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Design of Low-Density Parity-Check Codes for Digital Amplitude Modulation Broadcasting System

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