Paper Info
Title
Sequential Optimization for Subcarrier Pairing and Power Allocation in CP-SC Cognitive Relay Systems.
Abstract
A sequential optimization algorithm (SOA) for resource allocation in a cyclic-prefixed single-carrier cognitive relay system is proposed in this study. Both subcarrier pairing (SP) and power allocation are performed subject to a primary user interference constraint to minimize the mean squared error of frequency-domain equalization at the secondary destination receiver. Under uniform power allocation at the secondary source and optimal power allocation at the secondary relay, the ordered SP is proven to be asymptotically optimal in maximizing the matched filter bound on the signal-to-interference-plus-noise ratio. SOA implements the ordered SP before power allocation optimization by decoupling the ordered SP from the power allocation. Simulation results show that SOA can optimize resource allocation efficiently by significantly reducing complexity.
Year
DOI
Venue
2014
10.3837/tiis.2014.05.008
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS
Keywords
Field
DocType
Cyclic-prefixed single-carrier,cognitive radio relay system,power allocation,subcarrier pairing
Secondary source,Mathematical optimization,Equalization (audio),Computer science,Mean squared error,Real-time computing,Resource allocation,Interference (wave propagation),Matched filter,Asymptotically optimal algorithm,Relay,Distributed computing
Journal
Volume
Issue
ISSN
8
5
1976-7277
Citations 
PageRank 
References 
0
0.34
13
Authors
3
Name
Order
Citations
PageRank
Hongwu Liu1659.58
Aijin Jung200.34
Kyung Sup Kwak31519147.10