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Performance Comparison Between Low–Density Parity–Check And Reed–Solomon Codes Using Wireless Image Transmission System

Ierwan Ab. Karim, Abdul Karem Hussein Mohammed Almawgani, Mohd Fadzli Mohd Salleh
2009 Jurnal Teknologi  

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In this paper the performance of Low-Density Parity-Check (LDPC) and Reed-Solomon (RS) codes are analyzed using a wireless image transmission system. The system utilizes the Additive White Gaussian Noise (AWGN) channel. In this work, a grayscale image is used as the input data source. The quality of the reconstructed grayscale image after the channel decoder is measured using the Peak Signal to Noise Ratio (PSNR) by comparing the reconstructed image with the input grayscale image. Simulation
more » ... ults show that the performance of image transmission system using LDPC code is always outperformed the system with RS code in AWGN channel. The quality of output grayscale image is considered good if the value of the PSNR is above 30 dB. Abstrak. Dalam kertas ini prestasi kod ketumpatan-rendah kesetaratan-semak (LDPC) dan kod Reed-Solomon (RS) telah dianalisis dengan menggunakan sistem penghantaran imej tanpa wayar. Sistem ini menggunakan salur penambahan Gaussian hinggar putih (AWGN). Dalam kerja ini, imej kelabu telah telah digunakan sebagai punca kemasukan daya. Kualiti imej kelabu yang dibina semula selepas saluran penyahkodan adalah diukur dengan menggunakan puncak nisbah isyarat-hinggar (PSNR) dengan membandingkan imej yang dibina semula dengan kemasukan imej asal. Keputusan penyelakuan menunjukkan prestasi sistem penghantaran imej dengan menggunakan kod LDPC sentiasa mengatasi prestasi sistem yang menggunakan kod RS dalam salur AWGN. Kualiti keluaran imej kelabu adalah dianggap bagus sekiranya nilai PSNR melebihi 30 dB. Kata kunci: Sistem penghantaran imej tanpa wayar; kod LDPC; kod Reed Solomon; salur AGWN 1,
doi:10.11113/jt.v50.167 fatcat:fkylulb6bzbtrh74be6e3bj72a
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Ierwan Ab. Karim, Abdul Karem Hussein Mohammed Almawgani, Mohd Fadzli Mohd Salleh. "Performance Comparison Between Low–Density Parity–Check And Reed–Solomon Codes Using Wireless Image Transmission System." Jurnal Teknologi (2009)