Signal, Image and Video Processing

, Volume 10, Issue 3, pp 593–600 | Cite as

Analysis of asynchronous cognitive radio system with imperfect sensing and bursty primary user traffic

  • Ali Özer ErcanEmail author
Original Paper


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.


Cognitive radio Asynchronous opportunistic spectrum access Channel utilization 


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Copyright information

© Springer-Verlag London 2015

Authors and Affiliations

  1. 1.Department of Electrical and Electronics EngineeringÖzyeğin UniversityÇekmeköy, IstanbulTurkey

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