Title
Cognitive multi-relay based on dynamic spectrum leasing
Abstract
Dynamic spectrum leasing is a new spectrum sharing paradigm to achieve efficient use of the frequency resources for cognitive radio. In this paper, we propose two schemes of selecting secondary nodes as relays. Secondary users act as relays to improve quality of service of primary user, then primary user may lease a fraction of spectrum bands to secondary users. It is shown that these two schemes can improve the performance of primary and secondary network significantly while maintaining a fixed target data rate for the primary user. Moreover, we derive the accurate expression of primary outage probability of using all the secondary nodes as relays. Simulation results are presented to evaluate and compare the performances of the proposed two schemes.
Year
DOI
Venue
2013
10.1109/ICTEL.2013.6632137
ICT
Keywords
Field
DocType
relay networks (telecommunication),spectrum bands,secondary users,leasing,fixed target data rate,cognitive radio,telecommunication network reliability,dynamic spectrum leasing,dynamic spectrum access,relay selection,primary outage probability,cooperative transmission,primary user,spectrum sharing,frequency resources,cognitive multirelay,probability,random variables,dsl,silicon
Random variable,Digital subscriber line,Computer science,Computer network,Quality of service,Dynamic spectrum leasing,Cognition,Spectrum sharing,Relay,Cognitive radio
Conference
ISBN
Citations 
PageRank 
978-1-4673-6425-6
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Cong Wang181.66
Yiwen Xu21410.75
Qixun Zhang315728.59
Zhiyong Feng4794167.21
Sisi Ma582.88