Outage Analysis in Multi-User and Multi-Relay Cognitive AF Relaying Networks Using MRC

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Provided by: WSEAS
Topic: Mobility
Format: PDF
In this paper, the authors investigate the outage performance in multi-user and multi-relay cognitive amplify-and-forward relaying networks for MinW relay selection scheme over independent non-identically distributed Rayleigh fading channels, where the eavesdropper node may intercept the source message. To guarantee the quality-of-service of the Primary User (PU), both the maximum tolerable peak interference power at the PU and maximum allowable transmit power at secondary users are considered. Relay selection is employed in this paper to improve the secure transmission from secondary source to secondary destination by minimizing instantaneous signal-to-noise ratio at the eavesdropper.
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