Reference : Cooperative Multicell Precoding : Rate Region Characterization and Distributed Strate...
Scientific journals : Article
Engineering, computing & technology : Computer science
Engineering, computing & technology : Computer science
http://hdl.handle.net/10993/7515
Cooperative Multicell Precoding : Rate Region Characterization and Distributed Strategies with Instantaneous and Statistical CSI
English
Björnson, Emil [> >]
Randa, Zakhour [> >]
David, Gesbert [> >]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Aug-2010
IEEE Transactions on Signal Processing
IEEE
58
8
4298-4310
Yes
International
1053-587X
[en] Base station cooperation is an attractive way of increasing the spectral efficiency in multiantenna communication. By serving each terminal through several base stations in a given area, intercell interference can be coordinated and higher performance achieved, especially for terminals at cell edges. Most previous work in the area has assumed that base stations have common knowledge of both data dedicated to all terminals and full or partial channel state information (CSI) of all links. Herein, we analyze the case of distributed cooperation where each base station has only local CSI, either instantaneous or statistical. In the case of instantaneous CSI, the beamforming vectors that can attain the outer boundary of the achievable rate region are characterized for an arbitrary number of multiantenna transmitters and single-antenna receivers. This characterization only requires local CSI and justifies distributed precoding design based on a novel virtual signal-to-interference noise ratio (SINR) framework, which can handle an arbitrary SNR and achieves the optimal multiplexing gain. The local power allocation between terminals is solved heuristically. Conceptually, analogous results for the achievable rate region characterization and precoding design are derived in the case of local statistical CSI. The benefits of distributed cooperative transmission are illustrated numerically, and it is shown that most of the performance with centralized cooperation can be obtained using only local CSI.
Others
http://hdl.handle.net/10993/7515
10.1109/TSP.2010.2049996

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
Cooperative Multicell Precoding Rate Region Characterization and Distributed Strategies with Ins....pdfPublisher postprint1.02 MBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.