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Multiuser Detection Assisted Time- and Frequency-Domain Spread Multicarrier Code-Division Multiple-Access

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In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multipleaccess (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading. We investigate the achievable detection performance in the context of synchronous TF-domain spread MC DS-CDMA when communicating over an additive white Gaussian noise (AWGN) channel. Five detection schemes are investigated, which include the single-user correlation based detector, the joint TF-domain decorrelating multiuser detector (MUD), the joint TF-domainMMSEMUD, the separate TF-domain decorrelating/MMSE MUD, and the separate TF-domain MMSE/decorrelating MUD. Our simulation results show that the separate TF-domain MUD schemes are capable of achieving a similar bit error rate (BER) performance to that of the significantly more complex joint TF-domain MUD schemes. Index Terms—Code-division multiple-access (CDMA), decorrelating, frequency-domain spreading, joint detection, minimum mean square error (MMSE), multicarrier (MC), multiuser detection, separate detection, time-domain spreading.

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Yang, L-L., Wei, H. and Hanzo, L. (2006) Multiuser Detection Assisted Time- and Frequency-Domain Spread Multicarrier Code-Division Multiple-Access IEEE Transactions on Vehicular Technology, 55, (1), pp. 397-404.

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Published date: January 2006
Organisations: Southampton Wireless Group


Local EPrints ID: 262983
ISSN: 0018-9545
PURE UUID: 7484280b-5754-42e2-a8be-c8199aba5763
ORCID for L-L. Yang: ORCID iD

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Date deposited: 18 Sep 2006
Last modified: 18 Jul 2017 08:46

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Author: L-L. Yang ORCID iD
Author: H. Wei
Author: L. Hanzo

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