Wireless Communication Network (WSN) applications are growing drastically daily, and
their extensive nature attracts researchers and development authorities. The critical issues …

The growing number of radio communication devices and limited spectrum resources are
drivers for the development of new techniques of dynamic spectrum access and spectrum …

Abstract Much interest in Cognitive Radio Networks (CRNs) has been raised recently by
enabling unlicensed (secondary) users to utilize the unused portions of the licensed …

Cognitive Radio Networks is considered as the solution to the problem of limited bandwidth
which arises in the wireless networks. Spectrum sensing is an important issue of CRNs …

Spectrum awareness is a fundamental characteristic of cognitive radio, and spectrum
sensing is the local procedure by which the cognitive radio gains knowledge of spectrum …

Cognitive radio (CR) is a potential strategy for opportunistic access of idle resources to solve
the conflicts between spectrum scarcity and underutilization. Spectrum sensing (SS) …

Detection of weak signals has become the study of particular importance as a consequence
of the ongoing technology development in many different fields such as more efficient radio …

In this paper a new blind energy detection spectrum-sensing method based on Discreet
Wavelet Transform (DWT) is proposed. The method utilizes the DWT sub-band to collect the …

Spectrum Sensing (SS) constitutes the most critical task in Cognitive Radio (CR) systems for
Primary User (PU) detection. Cooperative Spectrum Sensing (CSS) is introduced to …

Spectrum Sensing (SS) comprises the most important component in Cognitive Radio (CR)
systems. Cooperative Spectrum Sensing (CSS) is proposed as an effective approach to …