Spectrum sensing is critically important for cognitive radio, an emerging solution to the
spectrum congestion and low usage of licensed spectrum. Energy detection is a promising …

Spectrum sensing is the basic and essential mechanisms of Cognitive Radio (CR) to find the
unused spectrum. This paper presents an overview of CR architecture, discusses the …

Recently, spectrum sensing has been intensively studied as a key technology in realizing
the cognitive radio. There have been advances in the performance of spectrum sensing …

Energy detection is of crucial importance in cognitive radio networks. However, its
performance is poor when the channel fading is severe, which causes interference to the …

Energy detection constitutes a preferred approach for spectrum sensing in cognitive radio
owing to its simplicity and applicability (it works irrespective of the signal format to be …

In cognitive radio networks, spectrum sensing is used to sense the unused spectrum in an
opportunistic manner. In this paper, we propose an energy detector utilizing adaptive double …

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 …

Energy detection is an attractive spectrum sensing method for cognitive radio. The design of
energy detection relies on two critical assumptions: 1) noise power is perfectly and {\it a …

Spectrum sensing is one of the key functionalities in the implementation of cognitive radio. It
is used to sense the unused spectrum in an opportunistic manner. In this paper, we propose …

In this paper we investigated the energy detection technique for spectrum sensing in
cognitive radio systems. The detection performance and the impact of the noise uncertainty …