Abstract
Technological advances coupled with regulatory initiative for more efficient utilization of radio spectrum resulted in the introduction of dynamic spectrum access enabled radio called Cognitive Radio (CR). A CR network is allowed to access a frequency band owned by primary user, which can provide higher throughput and better serviceability in wireless networks. The availability of multiple primary bands requires a CR network to select the best operating band which can maximize the total system performance. The selection should be made according to heterogenous properties of primary bands which offer different maximum data rate for secondary use and generate diverse traffic pattern. In this paper, assuming such heterogenous primary bands for secondary use, simple and distributed dynamic channel selection strategies are proposed and evaluated. In addition, we introduce a measurement metric for interference experienced by primary users due to secondary network’s access in primary band. We investigate the impact of different channel selection strategies and parameters on the primary and secondary performance.
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Anggraeni, P.N., Mahmood, N.H., Berthod, J. et al. Dynamic Channel Selection for Cognitive Radios with Heterogenous Primary Bands. Wireless Pers Commun 45, 369–384 (2008). https://doi.org/10.1007/s11277-008-9464-7
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DOI: https://doi.org/10.1007/s11277-008-9464-7