The University of Southampton
University of Southampton Institutional Repository

EXIT chart aided design of DS-CDMA ultra wideband systems using iterative decoding

Riaz, R.A., El-Hajjar, M., Ahmed, Q.Z., Ng, S.X., Chen, S. and Hanzo, L. (2008) EXIT chart aided design of DS-CDMA ultra wideband systems using iterative decoding At Proc. VTC2008-Fall, Canada. 21 - 24 Sep 2008. , 5 pages.

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents a novel ultrawideband (UWB), direct sequence code division multiple access (DS-CDMA) aided system designed for the IEEE 802.15.3a UWB channel specifications. Substantial performance improvements can be attained by serially concatenated channel encoding combined with a unity rate code (URC). We compare the performance of the iterative aided decoding correlation (Corr) and minimum mean square error (MMSE) detectors exchanging extrinsic information between the URC's decoder as well as the outer recursive systematic convolutional (RSC) code's decoder. Moreover, the iterative decoding convergence analysis of the proposed system is carried out with the aid of extrinsic information transfer (EXIT) charts. As expected, the iteratively decoded fully-loaded system employing MMSE detection outperforms its counterpart employing the equivalent Corr detection. Explicitly, UWB DS-CDMA using the MMSE detector attains a BER of 10/sup -5/ at E/sub b//N/sub o/=2 dB when supporting U=32 users employing i=12 decoding iterations, while the same system using the Corr detector operates at BER-10/sup -1/.

PDF R06-20-02.pdf - Version of Record
Download (219kB)

More information

Published date: September 2008
Additional Information: Event Dates: September 21-24, 2008
Venue - Dates: Proc. VTC2008-Fall, Canada, 2008-09-21 - 2008-09-24
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 266750
URI: http://eprints.soton.ac.uk/id/eprint/266750
PURE UUID: 089c5ebe-8163-45d0-b940-db0e8f679bc6
ORCID for M. El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401

Catalogue record

Date deposited: 03 Oct 2008 08:43
Last modified: 18 Jul 2017 07:13

Export record

Contributors

Author: R.A. Riaz
Author: M. El-Hajjar ORCID iD
Author: Q.Z. Ahmed
Author: S.X. Ng
Author: S. Chen
Author: L. Hanzo

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×