Paper Info
Title
Amplify-and-Forward Relay Networks with Underlay Spectrum Access over Frequency Selective Fading Channels
Abstract
In this paper, we investigate the system performance in terms of outage probability and symbol error rate of cognitive relay networks with underlay spectrum access over Nakagami-m frequency selective fading channels. Underlay spectrum access is deployed at the secondary transmitters, i.e., the secondary source and relay, as a means of providing high spectrum utilization efficiency. It is assumed that the whole system operates in frequency selective fading channels which commonly occur in broadband communication networks. In addition, direct communication from the secondary source to destination is present together with relay communication such that the selection combining is applied at the destination. That is, either the direct or relay channel is selected for communication depending on which one provides the best signal-to-noise ratio (SNR). Analytical expressions for crucial performance measures such as outage probability and symbol error rate are formulated. Based on these analytical outcomes, respective system performance is investigated through numerical results for various system parameters and scenarios.
Year
DOI
Venue
2015
10.1109/VTCSpring.2015.7145676
Vehicular Technology Conference
Keywords
Field
DocType
Nakagami channels,amplify and forward communication,cognitive radio,diversity reception,probability,relay networks (telecommunication),Nakagami-m frequency selective fading channels,amplify-and-forward relay networks,broadband communication networks,cognitive relay networks,direct channel,direct communication,high spectrum utilization efficiency,outage probability,relay channel,relay communication,selection combining,signal-to-noise ratio,symbol error rate,system performance,underlay spectrum access
Relay channel,Secondary source,Expression (mathematics),Fading,Computer science,Computer network,Communication channel,Electronic engineering,Nakagami distribution,Underlay,Relay
Conference
ISSN
Citations 
PageRank 
2577-2465
0
0.34
References 
Authors
9
3
Name
Order
Citations
PageRank
Hoc Phan113013.68
Thi My Chinh Chu26614.36
Fu-Chun Zheng352268.29