In order to support the ever growing demand of wireless communication systems and
wireless local area network based 802.11 devices, the regulators are developing techniques …

We study a cognitive network consisting of a single primary transmitter and multiple
secondary, or cognitive, users. The primary transmitter, located at the center of the network …

Dynamic spectrum access networks and wireless spectrum policy reforms heavily rely on
accurate spectrum utilization statistics, which are obtained via spectrum surveys. In this …

Cognitive radio is being intensively researched for opportunistic access to the so-called TV
White Spaces (TVWS): large portions of the VHF/UHF TV bands which become available on …

There has been significant research progress reported over the last few years in the
development of cognitive radio technologies. This paper reviews some of these results …

This paper addresses the context acquisition to characterize different features of a primary
network based on the power measurements obtained by a sensor network. In particular, it …

Technologies such as cognitive radio and dynamic spectrum access rely on spectrum
sensing which provides wireless devices with information about the radio spectrum in the …

Recent advancements in artificial neural networks (ANNs) motivated us to design a simple
and faster spectrum prediction model termed the functional link artificial neural network …

In this paper, we articulate the challenge of multiple intersecting policies for the realization of
rural broadband networks employing dynamic spectrum access (DSA). Broadband …

Recent work has demonstrated that the underutilized spectrum in the Digital Television
Bands, commonly referred to as TV White Space (TVWS), is a prime candidate for …