Loading [MathJax]/extensions/MathMenu.js
Cognitive cooperative networks in dual-hop asymmetric fading channels | IEEE Conference Publication | IEEE Xplore

Cognitive cooperative networks in dual-hop asymmetric fading channels


Abstract:

Previous works on cognitive relay networks (CRNs) considered only symmetric fading channels. However, in practical wireless propagation scenarios, it is likely that the c...Show More

Abstract:

Previous works on cognitive relay networks (CRNs) considered only symmetric fading channels. However, in practical wireless propagation scenarios, it is likely that the channels of the secondary user (SU) and primary user (PU) may undergo different fading characteristics. In this paper, we assume that the channels of the secondary network (SU-source→SU-relay→SU-destination) are subject to Rician fading, whereas the channels of the link from the SU to the PU experience Rayleigh fading. Based on this framework, the end-to-end outage probability (OP) of CRNs is investigated for two different relaying schemes: i) in the absence of the direct link with decode-and-forward (DF) protocol and ii) in the presence of the direct link with incremental DF protocol. In particular, we derive both exact and asymptotic OP expressions for the considered CRNs. Our analysis reveals important insights into the impact of fading parameters on the CRN performance under distinct fading distributions.
Date of Conference: 09-13 December 2013
Date Added to IEEE Xplore: 12 June 2014
Electronic ISBN:978-1-4799-1353-4
Print ISSN: 1930-529X
Conference Location: Atlanta, GA, USA

References

References is not available for this document.