Due to the under-utilization problem of the allocated radio spectrum, cognitive radio (CR)
communications have recently emerged as a reliable and effective solution. Among various …

With the development of 5G, the future wireless communication network tends to be more
and more intelligent. In the face of new service demands of communication in the future such …

Cognitive radio technology are highly shows the non-reliance property to signal to noise
ratio due its covariance nature of spectrum sensing. But using TW distribution with minimum …

In cognitive radio networks, spectrum sensing aims to detect the unused spectrum channels
in order to use the radio spectrum more efficiently. Various methods have been proposed in …

The cognitive radio (CR) network consists of primary users (PUs) and secondary users
(SUs). The SUs in the CR network senses the spectrum band to opportunistically access the …

Spectrum sensing is a key aspect of Cognitive Radio (CR). The main requirement in CR
systems is the ability to sense the primary signal accurately and rapidly. In this paper, a …

Spectrum sensing is an important aspect of cognitive radios. This paper describes a method
for spectrum sensing based on the autocorrelation of the received samples. The proposed …

This paper addresses the problem of accurately modeling the spectrum occupancy patterns
of real radio communication systems, which is an essential aspect in the study of cognitive …

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 …

Primary channel statistics have recently gained increasing attention due to its remarkable
role in the performance improvement of Dynamic Spectrum Access (DSA)/Cognitive Radio …