Multi-zones of cognitive to fibre networks
Conference: Proceedings of the 7th International Symposium on Communication Systems Networks and Digital Signal Processing, CSNDSP 2010, University of Northumbria at Newcastle, UK, 21-23 July 2010
The Cognitive Radio Network (CRN) was developed to solve the problem of scares spectrum for the next generation networks. The Cognitive Radio over Fibre (CRoF) subnet uses fiber connections to avoid the interruption in CRN services due to spectrum unavailability. The contribution of this paper is to submit a scheme where the two networks CRN and CRoF coexist to form a new multi-zoned secondary network. At least one CRoF Base Station (BS) is placed in each zone as the wireless provider for the other CRN-BSs. CRoF-BSs control communication between different sectored zones. Certain criteria must be followed to form these zones according to the free available resources and the number of expected users. Opnet simulation results proved the multi-zoned network performance over known CRN applications in saving processing time and increasing the throughput. Major changes are presented to the management of the secondary networks to guarantee the continuity of the submitted services.
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