In cognitive networks, primary and secondary users (PUs and SUs) share the radio resource
according to fair regulations. The goal of this paper is to introduce a new method to detect an …

The traditional energy detection algorithm has been widely used in the field of signal
detection, and a variety of improved algorithms have been derived. In the case of low signal …

In cognitive radio networks, the unoccupied frequency bands licensed to primary users can
be opportunistically accessed by secondary (low-power or hidden) cognitive users …

Spectrum sensing has been identified as the key step of the cognition cycle and the most
important function for the establishment of cognitive radio. In this paper, a blind …

Energy detection is a simple non-coherent approach used for spectrum sensing that offers
linear computational complexity and low latency. Its main shortcoming is the well-known …

Cognitive radio is an emerging technology that is used to solve the problem of scarce
spectrum resource utilization. Among its fundamental functions, the most important is the …

In this letter, a spectrum sensing technique is proposed for constant modulus primary users
signals. A new metric, namely the normalized variance, is introduced as a function of the …

Due to increasing spectrum demand for new wireless devices applications, cooperative
spectrum sensing (CSS) paradigm is the most promising solution to alleviate the spectrum …

Spectrum sensing is a crucial technology in cognitive radio (CR). Cumulant-based or higher
order statistics (HOS) based spectrum sensing methods are often considered in literature for …

Exploitation of short-interval spectrum availability offers an opportunity to better utilize
spectrum for wireless communications. One significant class of short-interval secondary …