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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 4/2017

01.02.2017

Joint Clustering Relay Selection and Beamforming in Cooperative Cognitive Radio Networks

verfasst von: Javad Zeraatkar Moghaddam, Hamid Farrokhi, Naaser Neda

Erschienen in: Wireless Personal Communications | Ausgabe 4/2017

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Abstract

This paper proposes a joint clustering relay selection and beamforming method for a more realistic cooperative cognitive radio network, in which a secondary network of multiple secondary links and a relay network coexist with a primary network of one primary link. We aim to improve performance of the system in terms of maximizing the received signal power of the secondary destinations, subject to the constraint of received interference plus noise power of the primary destination using the proposed method. Since different relays cooperate differently towards the signals at the secondary and primary destinations, the proposed method can improve the performance of the system and enables the relay network to simultaneously transmit signals of all secondary links toward the destinations by clustering the relays. Results of simulations confirm validity of the method and improve the system performance compared to the existing cooperative beamforming and Zero-Forcing beamforming, in which no relay selection strategy is used.
Vorheriger Artikel A Novel Energy-Aware Target Tracking Method by Reducing Active Nodes in Wireless Sensor Networks
Nächster Artikel Compact Quad Band-Notched Monopole Antenna for UWB Systems

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Metadaten
Titel
Joint Clustering Relay Selection and Beamforming in Cooperative Cognitive Radio Networks
verfasst von
Javad Zeraatkar Moghaddam
Hamid Farrokhi
Naaser Neda
Publikationsdatum
01.02.2017
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 4/2017
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-017-4014-9

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