Analysis of asynchronous cognitive radio system with imperfect sensing and bursty primary user traffic
| Autor: | Ali Ozer Ercan |
|---|---|
| Přispěvatelé: | Özyeğin University, Ercan, Ali Özer |
| Rok vydání: | 2015 |
| Předmět: |
Network packet
Computer science business.industry Cognitive radio ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Monte Carlo method 020302 automobile design & engineering 020206 networking & telecommunications 02 engineering and technology Channel utilization Asynchronous opportunistic spectrum access 0203 mechanical engineering Transmission (telecommunications) Primary (astronomy) Asynchronous communication Signal Processing 0202 electrical engineering electronic engineering information engineering Multimedia information systems Imperfect Electrical and Electronic Engineering business Computer network |
| Zdroj: | Signal, Image and Video Processing. 10:593-600 |
| ISSN: | 1863-1711 1863-1703 |
| Popis: | Due to copyright restrictions, the access to the full text of this article is only available via subscription. This paper presents a theoretical analysis of the spectrum utilization levels in a cognitive radio system. We assume that the traffic of the primary network is bursty and asynchronous with the secondary network, which performs imperfect spectrum sensing. Collisions of the primary and the secondary packets are assumed to result in increased packet error probabilities. We present primary and secondary utilization levels under optimized secondary transmission periods for varying primary traffic characteristics and secondary sensing performance levels. The results are also validated by extensive Monte Carlo simulations. We find that an asynchronous cognitive radio network with imperfect spectrum sensing is feasible when optimized transmission periods are used. The effects of primary traffic’s burst pattern and secondary sensing performance are discussed. European Commission ; TÜBİTAK |
| Databáze: | OpenAIRE |
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