Effect of Forward Error Correction Codes on the Performance of LDS-OFDM

Razavi, R., Imran, M. A. , Xiao, P. and Tafazolli, R. (2013) Effect of Forward Error Correction Codes on the Performance of LDS-OFDM. In: Proceedings of the 2013 19th European Wireless Conference (EW), Guildford, UK, 16-18 Apr 2013, ISBN 9783800734986

Razavi, R., Imran, M. A. , Xiao, P. and Tafazolli, R. (2013) Effect of Forward Error Correction Codes on the Performance of LDS-OFDM. In: Proceedings of the 2013 19th European Wireless Conference (EW), Guildford, UK, 16-18 Apr 2013, ISBN 9783800734986

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Abstract

In this paper, selection criteria of Forward Error Correction (FEC) codes, in particular, the convolutional codes are evaluated for a novel air interface scheme, called Low Density Signature Orthogonal Frequency Division Multiple Access (LDS-OFDM). In this regard, the mutual information transfer characteristics of turbo Multiuser Detector (MUD) are investigated using Extrinsic Information Transfer (EXIT) charts. LDS-OFDM uses Low Density Signature structure for spreading the data symbols in frequency domain. This technique benefits from frequency diversity in addition to its ability of supporting parallel data streams more than the number of subcarriers (overloaded condition). The turbo MUD couples the data symbols' detector of LDS scheme with users' FEC decoders through the message passing principle.

Item Type:Conference Proceedings
Additional Information:This work was supported b the UK Engineering and Physical Sciences Research Council (under Grant EP/J017655/1).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Razavi, R., Imran, M. A., Xiao, P., and Tafazolli, R.
College/School:College of Science and Engineering > School of Engineering
ISBN:9783800734986
Published Online:20 August 2013
Copyright Holders:Copyright © 2013 VDE Verlag GmbH
First Published:First published in Proceedings of the 2013 19th European Wireless Conference (EW)
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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