Abstract
Spectrum sharing is a key functionality of cognitive radio network (CRN) that features a fair distribution of vacant licensed channels among secondary users. This paper proposes a spectrum allocation scheme for CRN that takes into account different spectrum opportunities to be allocated to the secondary users while improving the spectrum utilization. A central entity is made responsible for deciding upon the channel assignment strategies. Moreover, channels are shared one after another in a sequential fashion such that a channel gets allotted to only one user at a time, and also a user can use at most one channel at a time. Simulation study reveals the performance improvement of the proposed scheme as compared to a random allocation strategy in terms of spectrum utilization efficiency.
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Acknowledgements
This research work has been supported by DST/INSPIRE Fellowship/REL1/2016/1, INSPIRE Reg No. IF150900, Govt. of India.
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Devi, M., Sarma, N., Deka, S.K. (2018). Spectrum Allocation in Cognitive Radio Networks—A Centralized Approach. In: Bhattacharyya, S., Gandhi, T., Sharma, K., Dutta, P. (eds) Advanced Computational and Communication Paradigms. Lecture Notes in Electrical Engineering, vol 475. Springer, Singapore. https://doi.org/10.1007/978-981-10-8240-5_10
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DOI: https://doi.org/10.1007/978-981-10-8240-5_10
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