2019
DOI: 10.3311/ppee.13074
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Spectrum Allocation in Cognitive Radio: A PSO-based Approach

Abstract: Cognitive radio systems have taken a fore-running position in the wireless communication technology. With most of the communication taking place through multi-carrier systems, the allocation of available spectrum to various carriers is a prominent issue. Since cognitive systems provide an environment of dynamic spectrum allocation, it becomes necessary to perform dynamic spectrum allocation swiftly with due consideration of parameters, like power consumption, fair distribution and minimal error. This paper con… Show more

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Cited by 10 publications
(3 citation statements)
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“…The energy detection approach was adopted in this study as a spectrum sensing component to identify the existence of licensed user signal due to its simplicity (Pineda and Hernandez, 2019;Dannana et al, 2019;Feng and Weilian, 2018;Mishra et al, 2019b;Chaudhari, 2018;Wan et al, 2019;Rabie Mohamed et al, 2021). It calculates the test statistics of the received signal as shown in Eq.…”
Section: Energy Detection-spectrum Sensing Component For Primary User...mentioning
confidence: 99%
“…The energy detection approach was adopted in this study as a spectrum sensing component to identify the existence of licensed user signal due to its simplicity (Pineda and Hernandez, 2019;Dannana et al, 2019;Feng and Weilian, 2018;Mishra et al, 2019b;Chaudhari, 2018;Wan et al, 2019;Rabie Mohamed et al, 2021). It calculates the test statistics of the received signal as shown in Eq.…”
Section: Energy Detection-spectrum Sensing Component For Primary User...mentioning
confidence: 99%
“…PSO is used to optimize power in [26] and spectrum allocation in [27][28][29]. Our proposed algorithm in this paper has the objective of maximizing the SINR for all secondary users (SUs).…”
Section: E Particle Swarm Optimization Algorithmmentioning
confidence: 99%
“…If the particle›s fitness is better than the global best fitness, then the position vector is saved for the global best. Finally, the particle's velocity and position are updated until the termination condition is satisfied [30][31][32][33]. Fig.…”
Section: The Presented Ct Saturation Detection Modelmentioning
confidence: 99%