Development of Well-Structured Variable Rate Low Density Parity Check Codes for DVB-S2 Applications

Moinian, Abdolhosein and Pandya, Nishit and Zarimpas, Vasileios and Honary, Bahram (2004) Development of Well-Structured Variable Rate Low Density Parity Check Codes for DVB-S2 Applications. In: 2nd Advanced Satellite Mobile Systems Conference (ASMS). European Space Agency, pp. 203-206.

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Abstract

Both constant and variable Forward Error Correcting (FEC) coding is provided by the DVB-S2 system. Variable FEC can be used for different levels of error protection according to different applications. DVB-S2 system [15] is intended to provide interactive services, which are mainly point-to-point or point-to multipoint, where variable FEC may be combined with the use of return channels, to achieve Adaptive Coding. The novel idea explained in this paper, introduces a well-structured Low Density Parity Check (LPDC) codes, which enables the system to switch between LDPC codes of different rates (9/10, 8/9, 5/6, 4/5…) derived from a base parity check matrix. We introduce a method to achieve variable rate codes starting from higher rate to lower rate codes based on matrix expansion.

Item Type: Contribution in Book/Report/Proceedings
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 60993
Deposited By: ep_importer_pure
Deposited On: 12 Feb 2013 09:24
Refereed?: No
Published?: Published
Last Modified: 10 Jun 2019 22:56
URI: https://eprints.lancs.ac.uk/id/eprint/60993

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