Cognitive radio has become an effective technology to solve the underutilisation problem of
the spectrum. In recent times, spectrum sensing has been intensively studied as a key …

In this paper, we propose an Eigenvalue and superposition approach based cooperative
spectrum sensing scheme: firstly, we calculated the Eigenvalue from the received …

Spectrum sensing is the most important task of a cognitive radio network that aims to
opportunistic spectrum access (OSA), whereas it has been shown that cooperative spectrum …

Cognitive radio (CR) technology has been proposed to improve spectrum utilization by
allowing cognitive radio users to opportunistically access under-utilized frequency band …

Two schemes of energy-efficient cooperative spectrum sensing with relay switching over
Rayleigh fading channels are proposed and analyzed for cognitive radio (CR). With relay …

Among variant kinds of spectrum sensing strategies in cognitive radio (CR) broadly studied
before, cooperative sensing is the most popular one to detect the primary user accurately …

In this study, the performance of a cooperative multi-antenna cognitive relay (CR) based
system that consists of one primary user (PU) and one cognitive coordinator (CC) is …

In this paper, optimization of the sensing time and the number of cooperative users for OR-
Rule cooperative spectrum sensing in cognitive radio network is investigated. A cognitive …

Spectrum sensing is a method which is used to find out whether the channel is idle or not in
Cognitive Radio Network (CRN). Traditional methods are not much reliable due to the …

This paper introduces an improved cooperative spectrum sensing (CSS) algorithm for
cognitive radio (CR) networks based on the machine learning technique. In this scheme …