Efficient Algorithm for Power Allocation in Relay-based Cognitive Radio Network

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2011-12Alternative metrics PlumX
http://hdl.handle.net/11012/56935Altmetrics
http://hdl.handle.net/11012/56935
http://hdl.handle.net/11012/56935
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This paper addresses a cognitive radio (CR) network scenario where a relay is assigned to mitigate interference to primary users (PUs). We develop an average probability of successful secondary transmission (PSST) to introduce relay in the CR network. The power allocation is done using dual domain concept to maximize the system throughput as well as maintaining interference to an acceptable level and this approach is implemented in our paper that has a higher convergence rate. Furthermore, we propose an alternative approach that maintains a high throughput and at the same time reduces the computational complexity significantly. A detailed analysis is done before simulation. The simulated results validate the theoretical analysis.
Keywords
Cooperative cognitive radio system, power allocation, dual domain, spectrum balancing algorithm, system throughputPersistent identifier
http://hdl.handle.net/11012/56935Document type
Peer reviewedDocument version
Final PDFSource
Radioengineering. 2011, vol. 20, č. 4, s. 946-951. ISSN 1210-2512http://www.radioeng.cz/fulltexts/2011/11_04_946_951.pdf
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