Optimization techniques for spectrum handoff in cognitive radio networks using cluster based cooperative spectrum sensing

MK Devi, K Umamaheswari - Wireless Networks, 2021 - Springer
Spectrum handoff has an undesirable effect in utilizing the space for Secondary user (SU) in
the spectrum, which causes a handoff delay in cognitive radio network. The SU frequently …

融合Logistic 映射的混沌二进制萤火虫频谱分配策略.

滕志军, 张华, 张爱玲, 韩忠廷… - Journal of Harbin …, 2022 - search.ebscohost.com
针对认知无线电频谱分配优化算法寻优效果导致系统总效益低的问题, 对于二进制萤火虫算法
存在搜索易陷入局部最优的缺点, 提出了一种融合Logistic 映射的二进制萤火虫频谱分配策略 …

GA and PSO based spectrum allotment in cognitive radio networks

AM Yesaswini, K Annapurna - 2021 6th International …, 2021 - ieeexplore.ieee.org
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 …

Improved Resource Allocation Model for Reducing Interference Among Secondary Users in TV White Space for Broadband Services

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 …

Analysis and performance evaluation of PSO for spectrum allocation in CRN

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 …

A hybrid intelligent method for compensation of current transformers saturation based on PSO-SVR

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 …

Stochastic approach for channel selection in cognitive radio networks using optimization techniques

D Sumathi, SS Manivannan - Telecommunication Systems, 2021 - Springer
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 …

[PDF][PDF] Application research of chaotic binary particle swarm optimization algorithm in dynamic spectrum allocation

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 …

Optimization Algorithms used in Cognitive Radio Networks: An Overview

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 …

[PDF][PDF] Machine Learning and an Eigenvalue-Based Technique to Improve Cooperative Spectrum Sensing in Generalized α-κ-μ Fading Channel

S Samala, S Mishra, SS Singh - Journal of Communications, 2024 - jocm.us
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 …