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Sparse multiple relay selection for network beamforming with individual power constraints using semidefinite relaxation

Author
Blanco, L.; Najar, M.
Type of activity
Journal article
Journal
IEEE transactions on wireless communications
Date of publication
2016-02
Volume
15
Number
2
First page
1206
Last page
1217
DOI
https://doi.org/10.1109/TWC.2015.2487439 Open in new window
Repository
http://hdl.handle.net/2117/101912 Open in new window
URL
http://ieeexplore.ieee.org/document/7299322/ Open in new window
Abstract
This paper deals with the multiple relay selection problem in two-hop wireless cooperative networks with individual power constraints at the relays. In particular, it addresses the problem of selecting the best subset of K cooperative nodes and their corresponding beamforming weights so that the signal-to-noise ratio (SNR) is maximized at the destination. This problem is computationally demanding and requires an exhaustive search over all the possible combinations. In order to reduce the complex...
Citation
Blanco, L., Najar, M. Sparse multiple relay selection for network beamforming with individual power constraints using semidefinite relaxation. "IEEE transactions on wireless communications", Febrer 2016, vol. 15, núm. 2, p. 1206-1217.
Keywords
Combinatorial optimization, Distributed beamforming, Multiple relay selection, Semidefinite relaxation, Sparsity-promoting norms, Wireless relay network
Group of research
SPCOM - Signal Processing and Communications Group

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