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Optimality Properties and Low-Complexity Solutions to Coordinated Multicell Transmission
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-3599-5584
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: 2010 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE GLOBECOM 2010, IEEE , 2010, 1-6 p.Conference paper, Published paper (Refereed)
Abstract [en]

Base station cooperation can theoretically improve the throughput of multicell systems by coordinating interference and serving cell edge terminals through multiple base stations. In practice, the extent of cooperation is limited by the increase in backhaul signaling and computational demands. To address these concerns, we propose a novel distributed cooperation structure where each base station has responsibility for the interference towards a set of terminals, while only serving a subset of them with data. Weighted sum rate maximization is considered, and conditions for beamforming optimality and the optimal transmission structure are derived using Lagrange duality theory. This leads to distributed low-complexity transmission strategies, which are evaluated on measured multiantenna channels in a typical urban multicell environment.

Place, publisher, year, edition, pages
IEEE , 2010. 1-6 p.
Series
IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
Keyword [en]
Lagrange duality theory, backhaul signaling, base station cooperation, coordinated multicell transmission, Array signal processing, antenna arrays, optimisation
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-32018DOI: 10.1109/GLOCOM.2010.5683353ISI: 000287977401085Scopus ID: 2-s2.0-79551643810ISBN: 978-1-4244-5638-3 (print)OAI: oai:DiVA.org:kth-32018DiVA: diva2:408979
Conference
IEEE Global Telecommunications Conference (GLOBECOM 2010), Miami, FL, DEC 06-10, 2010
Note
“© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works QC 20110406Available from: 2011-10-25 Created: 2011-04-04 Last updated: 2012-01-23Bibliographically approved

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Bengtsson, MatsOttersten, Björn

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