It is widely believed that the advances of networking technologies will reshape the future of
telecommunication system. The continuous growth in data traffic originated by mobile users …

Spectrum sensing is one of the essential tasks to have a cognitive radio system, which will
allow an unlicensed user, called secondary user, to utilize the spectrum while the licensed …

Cognitive radio has been widely considered as one of the prominent solutions to tackle the
spectrum scarcity. While the majority of existing research has focused on single-band …

Spectrum scarcity is impeding practical implementations of emerging wireless multimedia
applications requiring significantly more frequency spectrum. Cognitive radio (CR) has …

Abstract A Cognitive Radio Sensor Network (CRSN) is a distributed network of sensor
nodes, which senses event signals and collaboratively communicates over dynamically …

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 …

Cognitive radio is a promising solution to current problem of spectrum scarcity. It relies on
efficient spectrum sensing. Energy detection is the most dominantly used spectrum sensing …

Rapidly rising energy costs and increasingly rigid environmental standards have led to an
emerging trend of addressing “energy efficiency” aspect of wireless communication …

Cognitive radio (CR) is a regulated technique for opportunistic access of idle resources. In
CR, spectrum sensing is one of the key functionalities. It is used to sense the unused …

Cognitive radios are indispensable to shift paradigm from conventional exclusive spectrum
assignment to dynamic spectrum access. They can boost up spectrum utilization …