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Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems

Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems
Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems
In this contribution we propose and study a novel iterative time-frequency-domain (TF-domain) multiuser detector (MUD) for the multicarrier direct-sequence code-division multiple-access system employing both T-domain and F-domain spreading, which, for brevity, is referred to as the TF/MC DS-CDMA system. The proposed iterative TF-domain MUD consists of a set of T-domain soft-input soft-output MUDs (SISO-MUDs) and a set of F-domain SISO-MUDs, which exchange information through two multiuser interference (MUI) cancellation units. Both the T-domain and F-domain SISO-MUDs are operated under the maximum {\em a-posteriori} (MAP) principles. In this contribution the complexity and bit error rate (BER) performance of the TF/MC DS-CDMA employing the proposed iterative TF-domain MUD are investigated and also compared with the other existing MUD schemes, including the optimum MUD and the joint/separate minimum mean-square error (MMSE) MUDs. Our study shows that the iterative TF-domain MUD is capable of achieving nearly the same BER performance as the optimum MUD, but at much lower complexity.
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Zhang, Youguang
981009fc-2934-41e9-85a5-9945e9c9e37c
Pan, Peng
56ea394e-58af-4d6f-8bd5-d08784d3a7f8
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Zhang, Youguang
981009fc-2934-41e9-85a5-9945e9c9e37c

Pan, Peng, Yang, Lie-Liang and Zhang, Youguang (2010) Near-Optimum Iterative Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems. CHINACOM'10, China. 25 - 27 Aug 2010.

Record type: Conference or Workshop Item (Paper)

Abstract

In this contribution we propose and study a novel iterative time-frequency-domain (TF-domain) multiuser detector (MUD) for the multicarrier direct-sequence code-division multiple-access system employing both T-domain and F-domain spreading, which, for brevity, is referred to as the TF/MC DS-CDMA system. The proposed iterative TF-domain MUD consists of a set of T-domain soft-input soft-output MUDs (SISO-MUDs) and a set of F-domain SISO-MUDs, which exchange information through two multiuser interference (MUI) cancellation units. Both the T-domain and F-domain SISO-MUDs are operated under the maximum {\em a-posteriori} (MAP) principles. In this contribution the complexity and bit error rate (BER) performance of the TF/MC DS-CDMA employing the proposed iterative TF-domain MUD are investigated and also compared with the other existing MUD schemes, including the optimum MUD and the joint/separate minimum mean-square error (MMSE) MUDs. Our study shows that the iterative TF-domain MUD is capable of achieving nearly the same BER performance as the optimum MUD, but at much lower complexity.

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More information

Published date: August 2010
Additional Information: Event Dates: 25-27, August 2010
Venue - Dates: CHINACOM'10, China, 2010-08-25 - 2010-08-27
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 272628
URI: http://eprints.soton.ac.uk/id/eprint/272628
PURE UUID: ed881492-8661-4372-99a9-3a182f6e3683
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 05 Aug 2011 14:44
Last modified: 20 Jul 2019 01:12

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Contributors

Author: Peng Pan
Author: Lie-Liang Yang ORCID iD
Author: Youguang Zhang

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