Paper Info
Title
On the performance of spectrum sharing two-way relay networks with distributed beamforming
Abstract
In this paper, we consider distributed beamforming for two-way spectrum-sharing system in an effort to enhance the performance of the secondary system and improve the bandwidth efficiency. In particular, we consider a cognitive radio network where a set of amplify-and-forward (AF) relays are employed to help a pair of secondary transceivers in the presence of multiple primary receivers. This set of the available relays participate in the beamforming process, where the beamformer weights are obtained via a convex optimization method. We analyze the performance of the proposed methods where closed-form expressions for the end-to-end outage and average error probabilities are derived for independent and identically distributed (i.i.d.) Rayleigh fading channels. Numerical results demonstrate the vitality of beamforming in enhancing the secondary system performance in addition to mitigating the interference to the primary users.
Year
DOI
Venue
2013
10.1109/SPAWC.2013.6612073
SPAWC
Keywords
Field
DocType
relay networks (telecommunication),distributed beamforming,bandwidth efficiency,two-way relay networks,amplify-and-forward relays,cognitive radio,rayleigh fading channels,convex programming,cognitive radio network,array signal processing,radio spectrum management,radio transceivers,two-way spectrum sharing system,secondary transceivers,convex optimization,amplify and forward communication,rayleigh channels,error probability,random variables,interference,vectors,wireless communication
Radio resource management,Beamforming,Rayleigh fading,Computer science,Electronic engineering,Independent and identically distributed random variables,Spectral efficiency,Convex optimization,Relay,Cognitive radio
Conference
ISSN
Citations 
PageRank 
1948-3244
2
0.36
References 
Authors
8
4
Name
Order
Citations
PageRank
Ali Afana112911.80
Ali Ghrayeb21668124.84
Vahid Asghari320216.39
Sofiène Affes496297.26