Optimality Properties and Low-Complexity Solutions to Coordinated Multicell Transmission

Björnson, Emil; Bengtsson, Mats; Ottersten, Björn

doi:10.1109/GLOCOM.2010.5683353

Reference : Optimality Properties and Low-Complexity Solutions to Coordinated Multicell Transmission


	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Computer science Engineering, computing & technology : Computer science
	To cite this reference:	http://hdl.handle.net/10993/7523

Title :	Optimality Properties and Low-Complexity Solutions to Coordinated Multicell Transmission
Language :	English
Author, co-author :	Björnson, Emil [> >]
	Bengtsson, Mats [> >]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	2010
Main document title :	Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Publisher :	IEEE
Pages :	1-6
Peer reviewed :	Yes
Audience :	International
ISBN :	978-1-4244-5636-9
Event name :	Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Event date :	6-10 Dec. 2010
Event place (city) :	Miami, FL
Event country :	USA
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.
Target :	Others
Permalink :	http://hdl.handle.net/10993/7523
DOI :	10.1109/GLOCOM.2010.5683353

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