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Performance Analysis of Multiuser Detectors for Uplink Quasi-synchronous MC-CDMA Systems

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Abstract

This paper analyses and compares the average bit error rate (BER) of different multiuser detectors (MUD) in the uplink of a multicarrier code- division multiple access (MC-CDMA) system. In particular, maximum likelihood, zero-forcing, minimum mean-square error and interference cancellation-based multiuser detectors have been analysed for the special case of uncorrelated subcarriers. The derived BER expressions are based upon previous results on diversity combining and also on recent findings on multiple input multiple output (MIMO) architectures. The subcarrier correlation is considered in the context of physical parameters currently under discussion for future wireless systems to give an indication up to what extent the assumption of uncorrelated subcarrier fading is plausible.

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Authors and Affiliations

  1. Department of Mathematics and Informatics, University of the Balearic Islands (UIB), Crta. Valldemossa km 7.5, 07122, Palma de Mallorca, Spain

    Felip Riera-Palou, Guillem Femenias & Jaume Ramis

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  1. Felip Riera-Palou
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  2. Guillem Femenias
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  3. Jaume Ramis
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Correspondence to Felip Riera-Palou.

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Riera-Palou, F., Femenias, G. & Ramis, J. Performance Analysis of Multiuser Detectors for Uplink Quasi-synchronous MC-CDMA Systems. Wireless Pers Commun 43, 1511–1521 (2007). https://doi.org/10.1007/s11277-007-9323-y

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  • DOI: https://doi.org/10.1007/s11277-007-9323-y

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