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

Autor
Blanco, L.; Najar, M.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on wireless communications
Data de publicació
2016-02
Volum
15
Número
2
Pàgina inicial
1206
Pàgina final
1217
DOI
https://doi.org/10.1109/TWC.2015.2487439 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/101912 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/document/7299322/ Obrir en finestra nova
Resum
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...
Citació
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.
Paraules clau
Combinatorial optimization, Distributed beamforming, Multiple relay selection, Semidefinite relaxation, Sparsity-promoting norms, Wireless relay network
Grup de recerca
SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

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