The secondary users can opportunistically use the channels in such a way that there is no interference to primary users' communications in cognitive radio networks. The optimization …
MP Mwaimu, M Majham, KK Ronoh, K Michael… - IEEE …, 2022 - ieeexplore.ieee.org
In recent years, the Television White Space has attracted the interest of many researchers due to its propagation characteristics obtainable between 470MHz and 790MHz spectrum …
MG CP, T Vijayakumar - 2021 International Conference on …, 2021 - ieeexplore.ieee.org
Design of an optimal spectrum allocation mechanism is a key issue for realizing dynamic spectrum access in cognitive radio network. In this paper, the optimal solution to spectrum …
RT Gorji, SM Hosseini, AA Abdoos… - … Electrical Engineering and …, 2021 - pp.bme.hu
Abstract The Current Transformers (CT) saturation may cause the protective relays mal- operation either non-recognition of internal fault or undesirable trip under external fault …
Secondary Users (SU) are guided by Cognitive Radio Device in identifying a channel licensed to Primary Users (PU) when it is free. Whenever PU arrives, SU shall vacate and …
ZJ Teng, LY Xie, HL Chen, H Zhang - Journal of Computers, 2020 - csroc.org.tw
Dynamic spectrum allocation (DSA) in cognitive radio system has become a hot topic to solve the spectrum scarcity. Particle swarm optimization (PSO) has shown great flexibility in …
KM Salih, MA Shakir - 2022 International Conference on …, 2022 - ieeexplore.ieee.org
With the massive demand for spectrum resources due to the massive increase of wireless devices, it was necessary to manage the scarcity of radio spectrum resources. Cognitive …
As the demand for radio spectrum continues to rise, one possible approach to addressing the problem with limited spectrum is cognitive radio. The most important aspect of effective …