Rate-compatible irregular repeat-accumulate codes for DVB-SH applications

Benmayor, D; Papaharalabos, S; Mathiopoulos, PT; Tsiropoula, G; Constantinou, P

dc.contributor.author	Benmayor, D	en
dc.contributor.author	Papaharalabos, S	en
dc.contributor.author	Mathiopoulos, PT	en
dc.contributor.author	Tsiropoula, G	en
dc.contributor.author	Constantinou, P	en
dc.date.accessioned	2014-03-01T02:45:46Z
dc.date.available	2014-03-01T02:45:46Z
dc.date.issued	2008	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32373
dc.subject	Computer Simulation	en
dc.subject	Density Evolution	en
dc.subject	Digital Video Broadcast	en
dc.subject	Handheld Device	en
dc.subject	Low Density Parity Check	en
dc.subject	Turbo Code	en
dc.subject	vandermonde matrix	en
dc.subject	3rd generation partnership project	en
dc.subject	Additive White Gaussian Noise	en
dc.subject	Irregular Repeat Accumulate	en
dc.subject.other	Block codes	en
dc.subject.other	Broadcasting	en
dc.subject.other	Computer graphics	en
dc.subject.other	Data storage equipment	en
dc.subject.other	Decoding	en
dc.subject.other	Gaussian noise (electronic)	en
dc.subject.other	Multimedia systems	en
dc.subject.other	Paper	en
dc.subject.other	Satellites	en
dc.subject.other	Signal encoding	en
dc.subject.other	Technical presentations	en
dc.subject.other	Turbo codes	en
dc.subject.other	White noise	en
dc.subject.other	3rd Generation Partnership projects	en
dc.subject.other	Accumulate codes	en
dc.subject.other	Applications.	en
dc.subject.other	Circulants	en
dc.subject.other	Code rates	en
dc.subject.other	Density evolution analysis	en
dc.subject.other	Deterministic structures	en
dc.subject.other	Digital Video Broadcasting	en
dc.subject.other	Gaussian noises	en
dc.subject.other	Hand-held devices	en
dc.subject.other	Handheld	en
dc.subject.other	Information blocks	en
dc.subject.other	Ira codes	en
dc.subject.other	Lower complexities	en
dc.subject.other	Parity checks	en
dc.subject.other	Rate codes	en
dc.subject.other	Vandermonde matrixes	en
dc.subject.other	Codes (symbols)	en
dc.title	Rate-compatible irregular repeat-accumulate codes for DVB-SH applications	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/IWSSC.2008.4656798	en
heal.identifier.secondary	http://dx.doi.org/10.1109/IWSSC.2008.4656798	en
heal.identifier.secondary	4656798	en
heal.publicationDate	2008	en
heal.abstract	This paper presents a systematic rate-compatible (RC) irregular repeat-accumulate (IRA) low-density parity check (LDPC) family of codes for Digital Video Broadcasting-Satellite to Handheld (DVB-SH) applications. Puncturing and extending of an optimized IRA mother code of rate 1/3 are used to obtain the full range of code rates. The main contribution of this paper is a simple, yet memory-efficient and modular, extending algorithm to obtain the lower code rates, based on a truncated Vandermonde matrix. In contrast to previously published extending methods, the one introduced in this paper does not use density evolution analysis, but instead achieves lower rate codes up to 1/5, by employing solely circulants and identity matrices in a deterministic structure. Compared to the standardized 3rd Generation Partnership Project 2 (3GPP2) turbo codes, the proposed RC-IRA codes feature lower complexity decoding, that is beneficial from processing, power and memory constrained handheld devices. The performance of the proposed family of codes is evaluated for the additive white Gaussian noise (AWGN) channel with information block length k = 12282 bits. Computer simulation results demonstrate that, for a wide range of rates, the proposed RC-IRA family of codes performs very close to the 3GPP2 turbo codes, and outperforms the 3GPP2 turbo codes when the latter exhibit an error-floor at FER below 10-3 and at at BER below 10 -5, apart from the case of rate R=1/5. © 2008 IEEE.	en
heal.journalName	2008 International Workshop on Satellite and Space Communications, IWSSC'08, Conference Proceedings	en
dc.identifier.doi	10.1109/IWSSC.2008.4656798	en
dc.identifier.spage	239	en
dc.identifier.epage	243	en