Abstract
Shadow fading is one of the least investigated factors of received signal power in a typical wireless communication system. Variations in the received power caused by shadowing events can impose some serious changes in the communication. This paper, proposes a new multiuser cognitive radio system in shadowing environment and its design optimization using cuckoo search algorithm. The transmission parameters of multiple secondary users in the purposed CR model are considered on the basis of IEEE 802.22 WRAN standard. An attempt to optimize these parameters in shadowing environment to achieve multiple objectives for desired quality of service have been made using a relatively newer and simpler cuckoo search algorithm. The optimization results have been compared with another efficient biogeography based optimization technique and the traditional simulated annealing.



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Kaur, K., Rattan, M. & Patterh, M.S. Cuckoo Search Based Optimization of Multiuser Cognitive Radio System Under the Effect of Shadowing. Wireless Pers Commun 99, 1217–1230 (2018). https://doi.org/10.1007/s11277-017-5181-4
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DOI: https://doi.org/10.1007/s11277-017-5181-4