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Blind Multiuser Detection by Accelerated Subspace Tracking
School of Integrated Design Engineering, Keio University 3-14-1 Hiyoshi Kohoku-ku, 223-8522, Yokohama, Japan.
School of Integrated Design Engineering, Keio University 3-14-1 Hiyoshi Kohoku-ku, 223-8522, Yokohama, Japan.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2005 (English)In: 13th European Signal Processing Conference (EUSIPCO 2005), Curran Associates, Inc., 2005, 2171-2174 p.Conference paper, Published paper (Refereed)
Abstract [en]

We propose a new blind multiuser detection scheme based on an accelerated subspace tracking in rapidly time-varying channel scenarios. The proposed subspace tracker is derived by combining theprojection approximation subspace tracking (PAST) with the internal model principle, approximately expressing the changing parameters with an expansion of polynomial time functions. The proposed subspace tracker can still maintain the linear computational complexity to the number of users, similar to the PAST. Furthermore, the effectiveness of the proposed multiuser detector is validated in synchronous DS-CDMA systems with Rayleigh fading through some numerical simulations.

Place, publisher, year, edition, pages
Curran Associates, Inc., 2005. 2171-2174 p.
Keyword [en]
blind multiuser detection, time-varying channel, DS-CDMA systems, Rayleigh fading
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-63578Scopus ID: 2-s2.0-84863694099ISBN: 9781604238211 (print)OAI: oai:DiVA.org:kth-63578DiVA: diva2:482380
Conference
13th European Signal Processing Conference, EUSIPCO 2005; Antalya, Turkey, 4-8 September, 2005
Note

QC 20120125

Available from: 2012-01-23 Created: 2012-01-23 Last updated: 2014-08-14Bibliographically approved

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Ottersten, Björn

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  • Other locale
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