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Multicell LMMSE Filtering Capacity under Correlated Multiple BS Antennas
SnT -, University of Luxembourg.
Centre for Communication Systems Research, University of Surrey, UK.
Centre for Communication Systems Research, University of Surrey, UK.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2010 (English)In: Proceedings IEEE Vehicular Technology Conference, Fall, IEEE , 2010, 1-5 p.Conference paper (Refereed)
Abstract [en]

Multicell joint processing has been shown to efficiently suppress inter-cell interference, while providing a high capacity gain due to spatial multiplexing across distributed Base Stations (BSs). However, the complexity of the optimal joint decoder in the multicell uplink channel grows exponentially with the number of users, making it prohibitive to implement in practice. In this direction, this paper investigates the uplink capacity performance of multicell joint linear minimum mean square error (LMMSE) filtering, followed by single-user decoding. The considered cellular multiple-access channel model assumes both Rayleigh and Rician flat fading, path loss, distributed users and correlated multiple antennas at the base station side. The case of Rayleigh fading is tackled using a free probability approach, while the case of Rician fading is addressed through a deterministic equivalent calculated using non-linear programming techniques. In this context, it is shown that LMMSE can provide high spectral efficiencies in practical macrocellular scenarios.

Place, publisher, year, edition, pages
IEEE , 2010. 1-5 p.
, IEEE VTS Vehicular Technology Conference Proceedings, ISSN 1090-3038
Keyword [en]
Correlation, Covariance matrix, Decoding, Fading, Joints, MIMO, Receivers
National Category
URN: urn:nbn:se:kth:diva-72566DOI: 10.1109/VETECF.2010.5594091ISI: 000287525200335ScopusID: 2-s2.0-78649422734ISBN: 978-142443574-6OAI: diva2:487787
2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall, Ottawa, ON, 6 September 2010 through 9 September 2010

Invited Paper. QC 20120209

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2013-02-25Bibliographically approved

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Ottersten, Björn
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Signal ProcessingACCESS Linnaeus Centre

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