A Survey on Spectrum Sensing Techniques for Cognitive Radio Networks

Sani, Muhammad Ikhsan; Tsado, Jacob; Thomas, Sadiq; Hussein, Suleiman U.; Shehu, Ibrahim Mustapha; Shanuna, Mohammed Gazali

doi:10.1109/icmeas52683.2021.9692412

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…The fast development of wireless communication technologies and the growing number of high-speed wireless devices are expected to create an increasing demand for spectrum resources [1]. This motivates the advent of cognitive radio to tackle the spectrum scarcity problem by allowing opportunistic spectrum access.…”

Section: Introductionmentioning

confidence: 99%

Trade-Offs among Sensing, Reporting, and Transmission in Cooperative CRNs

Liu

Zheng

2022

Sensors

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Cooperative spectrum sensing (CSS) has been verified as an effective approach to improve the sensing performances of cognitive radio networks (CRNs). Compared with existing works that commonly consider fusion with fixed inputs and neglect the duration of the reporting period in the design, we novelly investigate a fundamental trade-off among three periods of CSS: sensing, reporting, and transmission periods, and evaluate the impact of the fusion rule with a varying number of local sensing results. To be specific, the sensing time could be traded for additional mini-slots to report more local sensing results for fusion, or it could be traded for longer transmission time. In the CRNs with a given durations of sensing/reporting/transmission periods, we, respectively, formulate the throughput and collision probability and optimize the throughput under the collision constraint. The theoretical results show that, in the specific value intervals of the sensing parameters, the collision constraint provides an upper bound of the number of mini-slots in the reporting period or a lower bound of the sensing duration. We provide the approach to the maximum throughput in some cases.Finally, numerical results are presented to validate theoretical results.

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Section: Introductionmentioning

confidence: 99%

Trade-Offs among Sensing, Reporting, and Transmission in Cooperative CRNs

Liu

Zheng

2022

Sensors

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“…In previous studies, Refs. [ 9 , 10 ] summarized the current spectrum-sensing methods and discussed the advantages and disadvantages of these methods. Although the summary of spectrum sensing technology is relatively comprehensive, these surveys do not have specific application scenarios.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Sharing in the Sky and Space: A Survey

Zhang

Wei

Wang

et al. 2022

Sensors

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In order to achieve the vision of seamless wireless communication coverage, a space–air–ground integrated network is proposed as a key component of the sixth-generation (6G) mobile communication system. However, the spectrum used by aerial networks has become gradually crowded with the increase in wireless devices. Space networks are also in dire need of developing new bands to address spectrum shortages. As an effective way to solve the spectrum shortage problem, spectrum sharing between aerial/space networks and ground networks has been extensively studied. This article summarizes state-of-the-art studies on spectrum sharing between aerial/space networks and ground networks. First, this article provides an overview of aerial networks and space networks and introduces the main application scenarios of aerial networks and space networks. Then, this article summarizes the spectrum sharing techniques between aerial/space networks and ground networks, including existing spectrum utilization rules, spectrum sharing modes and key technologies. Finally, we summarize the challenges of spectrum sharing between aerial/space networks and ground networks. This article provides guidance for spectrum allocation and spectrum sharing of space–air–ground integrated networks.

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Improved hybrid spectrum sensing technique in cognitive radio communication system

Ramya,

Rajeswari

2024

SIViP

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A Survey on Spectrum Sensing Techniques for Cognitive Radio Networks

Cited by 6 publications

References 13 publications

Trade-Offs among Sensing, Reporting, and Transmission in Cooperative CRNs

Trade-Offs among Sensing, Reporting, and Transmission in Cooperative CRNs

Spectrum Sharing in the Sky and Space: A Survey

Improved hybrid spectrum sensing technique in cognitive radio communication system

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