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Channel quantization design in multiuser MIMO systems: Asymptotic versus practical conclusions
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2011 (English)In: Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on, IEEE Signal Processing Society, 2011, 3072-3075 p.Conference paper, Published paper (Refereed)
Abstract [en]

Feedback of channel state information (CSI) is necessary to achieve high throughput and low outage probability in multiuser multi antenna systems. There are two types of CSI: directional and quality information. Many papers have analyzed the importance of these in asymptotic regimes. However, we show that such results should be handled with care, as very different conclusions can be drawn depending on the spatial correlation and number of users. There fore, we propose a quantization framework and evaluate the tradeoff between directional and quality feedback under practical conditions.

Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2011. 3072-3075 p.
Series
International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
Keyword [en]
asymptotic regime; channel quantization design; channel state information; directional feedback; directional information; multiuser MIMO system;multiuser multiple antenna system;outage probability;quality feedback;quality information;quantization framework; spatial correlation; MIMO communication; antenna arrays; correlation methods;directive antennas;feedback; multiuser channels; probability; quantisation (signal); wireless channels;
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-52848DOI: 10.1109/ICASSP.2011.5946307ISI: 000296062403121Scopus ID: 2-s2.0-80051628301OAI: oai:DiVA.org:kth-52848DiVA: diva2:467950
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Prague, MAY 22-27, 2011
Note
Copyright 2011 IEEE. Published in the IEEE 2011 International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2011), scheduled for 22-27 May 2011 in Prague, Czech Republic. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the IEEE. Contact: Manager, Copyrights and Permissions / IEEE Service Center / 445 Hoes Lane / P.O. Box 1331 / Piscataway, NJ 08855-1331, USA. Telephone: + Intl. 908-562-3966. QC 20111221Available from: 2011-12-21 Created: 2011-12-20 Last updated: 2012-03-22Bibliographically approved

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