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Multiuser detection assisted time- and frequency-domain spread multicarrier code-division multiple-access | IEEE Journals & Magazine | IEEE Xplore

Multiuser detection assisted time- and frequency-domain spread multicarrier code-division multiple-access


Abstract:

In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employ...Show More

Abstract:

In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (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-domain MMSE MUD, 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.
Published in: IEEE Transactions on Vehicular Technology ( Volume: 55, Issue: 1, January 2006)
Page(s): 397 - 404
Date of Publication: 31 January 2006

ISSN Information:


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