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Block CMA-based blind and group-blind multiuser detectors

We derive a new iterative multiuser detection algorithm based on a generalized sidelobe canceller which uses the constant modulus property of digitally modulated signals together with code knowledge given to a receiver in a CDMA system. The proposed algorithm can be seen as an extension of the least...

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Main Authors:	Bahng, S., Host-Madsen, A.
Format:	Conference Proceeding
Language:	English
Subjects:	Applied sciences Array signal processing Cost function Detection, estimation, filtering, equalization, prediction Detectors Digital modulation Exact sciences and technology Information, signal and communications theory Interference Iterative algorithms Least squares methods Multiaccess communication Multiuser detection Signal and communications theory Signal processing algorithms Signal, noise Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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creator	Bahng, S. Host-Madsen, A.
description	We derive a new iterative multiuser detection algorithm based on a generalized sidelobe canceller which uses the constant modulus property of digitally modulated signals together with code knowledge given to a receiver in a CDMA system. The proposed algorithm can be seen as an extension of the least squares constant modulus algorithm in a sense that it simultaneously minimizes the constant modulus (CM) and the least square (LS) cost functions iteratively. The proposed detector performs as well as the ideal MMSE detector in the high SNR region, in addition to resolving the interference capture problem existing in most constant modulus algorithms (CMA).
doi_str_mv	10.1109/ICASSP.2004.1326973
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recordid	cdi_pascalfrancis_primary_17610782
source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Applied sciences Array signal processing Cost function Detection, estimation, filtering, equalization, prediction Detectors Digital modulation Exact sciences and technology Information, signal and communications theory Interference Iterative algorithms Least squares methods Multiaccess communication Multiuser detection Signal and communications theory Signal processing algorithms Signal, noise Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
title	Block CMA-based blind and group-blind multiuser detectors
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