Joint Robust Beamforming in Multi-Users Cognitive Radio System via Semidefinite Programming
50-55
30.Cnf-362 Paper View Page
Title
Low-Complexity Shortened LDPC Codes for
DVB-T2
Authors
Dr. Fatma Newagy, Ain Shams University, Cairo, Egypt Prof. Salwa Elramly, Egypt-Japan University of Science and Technology, Alexandria, Egypt
Abstract
Though LDPC codes have been accepted by DVB-T2, the LDPC encoders/decoders of DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) are difficult to be implemented for their huge code lengths of 16200 bits and 64800 bits). To reduce the encoder/decoder complexity, the shortened LDPC codes based on DVB-T2 of length 16200 are proposed in this paper. Shortening the codes may lead to these problems of girth-4 and low weight codes. This paper analyzed the possible reasons leading to the problems, and proposed the optimum shortened LDPC codes of DVB-T2 that avoid girth-4 and low weight codes. The simulation results in the AWGN channel show that for code rate ½ at BER = 10-5, LDPC DVB-T2_3240 requires only additional 0.5dB above that required by DVB-T2_16200 and the proposed shortened code still has no error floor as well as the former codes.
3rd Mosharaka International Conference on Mobile Computing and Wireless Communications (MIC-MCWC 2012)
Congress
2012 Global Congress on Mobile Computing and Wireless Communications (GC-MCWC 2012), 15-17 June 2012, Palma de Mallorca, Spain
Pages
39-43
Topics
Low Density Parity Check Coding Wireless Communication Systems
ISSN
2227-331X
DOI
BibTeX
@inproceedings{362MCWC2012,
title={Low-Complexity Shortened LDPC Codes for
DVB-T2},
author={Fatma Newagy, and Salwa Elramly},
booktitle={2012 Global Congress on Mobile Computing and Wireless Communications (GC-MCWC 2012)},
year={2012},
pages={39-43},
doi={}},
organization={Mosharaka for Research and Studies}
}
