A cognitive network makes use of the information gathered from the network in order to
sense the environment, plan actions according to the input, and make appropriate decisions …

In this letter, we consider the problem of energy detection of unknown signals in an
intervehicular communication (IVC) system over n* Rayleigh fading channels (also known …

Cognitive-Radio (CR) is a technique that has revolutionized the information technology
market to improve the use of the electromagnetic spectrum. Spectrum sensing is an …

A cooperative cognitive radio (CR) network with multiple secondary users (or CRs) is
considered. Each CR consists of an arbitrary M number of antennas. For spectrum sensing …

In cognitive radio networks, secondary users need to conduct spectrum sensing to properly
detect the presence of primary signals that may have much lower power than noise plus …

The limited available spectrum and the inefficiency in the spectrum usage results in a new
communication technology, referred to as cognitive radio networks. Cognitive radio a …

In this paper, channel assignment in cooperative spectrum sensing is studied for multi-
channel cognitive radio networks. Based on the information from each secondary user, eg …

In this paper, we consider an optimization of number of secondary users (SUs) in a
cooperative spectrum sensing by maximizing the energy efficiency of the cognitive radio …

Collaborative spectrum sensing (CSS) has been shown to be able to highly improve the
performance of spectrum sensing in cognitive radio networks. However, most existing works …

In this paper, we propose a novel algorithm for improving spectrum sensing in cognitive
radio networks by forming coalitions among cognitive radio users in a fading channel …