Cooperative spectrum sensing in cognitive radio networks: A survey

IF Akyildiz, BF Lo, R Balakrishnan - Physical communication, 2011 - Elsevier
Spectrum sensing is a key function of cognitive radio to prevent the harmful interference with
licensed users and identify the available spectrum for improving the spectrum's utilization …

Cooperative spectrum sensing in heterogeneous cognitive radio networks based on normalized energy detection

G Yang, J Wang, J Luo, OY Wen, H Li… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Spectrum sensing is an essential technology to detect the presence of primary users'(PUs)
signals in cognitive radio (CR) networks. To achieve desirable performances under …

Reinforcement learning enabled cooperative spectrum sensing in cognitive radio networks

W Ning, X Huang, K Yang, F Wu… - … of Communications and …, 2020 - ieeexplore.ieee.org
In cognitive radio (CR) networks, fast and accurate spectrum sensing plays a fundamental
role in achieving high spectral efficiency. In this paper, a reinforcement learning (RL) …

A parallel cooperative spectrum sensing in cognitive radio networks

S Xie, Y Liu, Y Zhang, R Yu - IEEE transactions on vehicular …, 2010 - ieeexplore.ieee.org
In cognitive radio networks, spectrum sensing is a crucial component in the discovery of
spectrum opportunities for secondary systems (or unlicensed systems). The performance of …

A selective-relay based cooperative spectrum sensing scheme without dedicated reporting channels in cognitive radio networks

Y Zou, YD Yao, B Zheng - IEEE Transactions on Wireless …, 2011 - ieeexplore.ieee.org
Typically, each cooperative spectrum sensing process requires two phases: the primary
user's signal detection phase, in which all cognitive users attempt to detect the presence of …

Energy and throughput efficient cooperative spectrum sensing in cognitive radio sensor networks

W Ejaz, GA Shah, N Hasan… - Transactions on Emerging …, 2015 - Wiley Online Library
The sensing‐throughput trade‐off and the sensing‐energy trade‐off for cooperative
spectrum sensing have been the subject of recent research. Two important, but often …

Cooperative spectrum sensing with adaptive double-threshold based energy detector in cognitive radio networks

A Bagwari, GS Tomar - Wireless personal communications, 2013 - Springer
Spectrum sensing is one of the key functionalities in the implementation of cognitive radio. It
is used to sense the unused spectrum in an opportunistic manner. In this paper, we propose …

Cooperative spectrum sensing based on two-stage detectors with multiple energy detectors and adaptive double threshold in cognitive radio networks

A Bagwari, GS Tomar, S Verma - Canadian Journal of Electrical …, 2013 - ieeexplore.ieee.org
This paper presents two-stage detectors for spectrum sensing in cognitive radio networks.
The first stage consists of multiple energy detectors, where each energy detector (ED) has a …

Energy-efficient cooperative spectrum sensing schemes for cognitive radio networks

N Zhao, FR Yu, H Sun, A Nallanathan - EURASIP Journal on Wireless …, 2013 - Springer
Rapidly rising energy costs and increasingly rigid environmental standards have led to an
emerging trend of addressing “energy efficiency” aspect of wireless communication …

Equal gain combining for cooperative spectrum sensing in cognitive radio networks

D Hamza, S Aïssa, G Aniba - IEEE Transactions on wireless …, 2014 - ieeexplore.ieee.org
Sensing with equal gain combining (SEGC), a novel cooperative spectrum sensing
technique for cognitive radio networks, is proposed. Cognitive radios simultaneously …