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Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access
Joint Authors
Chen, Yunfei
Radaydeh, Redha M.
Zafar, Ammar
Alouini, Mohamed-Slim
Source
Journal of Computer Networks and Communications
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
Optimal resource allocation for cooperative cognitive radio networks with opportunistic access to the licensed spectrum is studied.
Resource allocation is based on minimizing the symbol error rate at the receiver.
Both the cases of all-participate relaying and selective relaying are considered.
The objective function is derived and the constraints are detailed for both scenarios.
It is then shown that the objective functions and the constraints are nonlinear and nonconvex functions of the parameters of interest, that is, source and relay powers, symbol time, and sensing time.
Therefore, it is difficult to obtain closed-form solutions for the optimal resource allocation.
The optimization problem is then solved using numerical techniques.
Numerical results show that the all-participate system provides better performance than its selection counterpart, at the cost of greater resources.
American Psychological Association (APA)
Zafar, Ammar& Alouini, Mohamed-Slim& Chen, Yunfei& Radaydeh, Redha M.. 2012. Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access. Journal of Computer Networks and Communications،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-461146
Modern Language Association (MLA)
Zafar, Ammar…[et al.]. Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access. Journal of Computer Networks and Communications No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-461146
American Medical Association (AMA)
Zafar, Ammar& Alouini, Mohamed-Slim& Chen, Yunfei& Radaydeh, Redha M.. Optimizing Cooperative Cognitive Radio Networks with Opportunistic Access. Journal of Computer Networks and Communications. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-461146
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-461146