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Title: Towards a Realistic Primary Users' Behavior in Single Transceiver Cognitive Networks
Authors: Dinis, Rui
Luis, Miguel
Furtado, António
Oliveira, Rodolfo
Bernardo, Luis
Keywords: Cognitive radio
Network modeling.
Issue Date: 2013
Publisher: IEEE Publisher
Abstract: Most of the models intended to describe the throughput of Primary (PUs) and Secondary (SUs) users of Cognitive Radio Networks (CRNs) assume that PUs only change their activity state (ON/OFF) in the beginning of each SU’s operation cycle, admitting that PUs are synchronized with SU’s operation cycle. This letter characterizes a more realistic scenario where PUs can randomly change their activity state during the SU’s operation cycle. We derive an analytical model for the PU’s throughput and its validation is assessed through simulation results. The analysis shows that assuming synchronized PUs leads to an undervaluation of the interference caused to PUs, and the interference decreases as more SU’s operation cycles are performed per ON/OFF PU’s activity state.
Peer Reviewed: yes
metadata.dc.identifier.doi: 10.1109/LCOMM.2012.121912.122175
ISSN: 1089-7798
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Appears in Collections:DCT - Artigos/Papers

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