A comparative analysis of LDPC decoders for image transmission over AWGN channel

Sohaib A. Qazi, Muhammad Shoaib, Usman Javaid, Shahzad Asif

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

In this paper we studied the performance of Low Density Parity Check (LDPC) codes over Additive White Gaussian Noise (AWGN) channel. Different images are transmitted for two different LDPC decoders. Parity check matrices are used for encoding and decoding processes. The basic technique used to decode the message is message passing algorithm. We have used the image of 256x256 for our experiments. Minimum error rate is achieved at a code rate of 0.5 and row weight of 4. Different images are recovered at 10 dB SNR with a probability of error close to Shannon limit.

Original languageEnglish
Title of host publicationProceedings of the 6th International Conference on Frontiers of Information Technology, FIT '09
Place of PublicationNew York
PublisherAssociation for Computing Machinery (ACM)
Pages1-5
Number of pages5
ISBN (Print)9781605586427
DOIs
Publication statusPublished - 2009
Event6th International Conference on Frontiers of Information Technology, FIT '09 - Abbottabad, Pakistan
Duration: 16 Dec 200918 Dec 2009

Other

Other6th International Conference on Frontiers of Information Technology, FIT '09
CountryPakistan
CityAbbottabad
Period16/12/0918/12/09

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Qazi, S. A., Shoaib, M., Javaid, U., & Asif, S. (2009). A comparative analysis of LDPC decoders for image transmission over AWGN channel. In Proceedings of the 6th International Conference on Frontiers of Information Technology, FIT '09 (pp. 1-5). [1838007] New York: Association for Computing Machinery (ACM). https://doi.org/10.1145/1838002.1838007