Opportunistic spectrum access (OSA) has been regarded as the most promising approach to
solve the paradox between spectrum scarcity and waste. Intelligent decision making is key …

This paper discusses the fundamental principles of a cognitive-radio RF system. The key
points required to achieve a true cognitive-radio device are outlined. The operation of a …

We investigate the problem of achieving global optimization for distributed channel
selections in cognitive radio networks (CRNs), using game theoretic solutions. To cope with …

Cognitive radios have become a key research area in communications over the past few
years. Automatic modulation classification (AMC) is an important component that improves …

With advances in telecommunications, an increasing number of services rely on high data
rate spectrum access. These critical services include banking, telemedicine, and exchange …

Hardware limitation at the secondary user (SU) terminal makes multiband (wideband)
spectrum sensing more challenging. This paper considers spectrum sensing under SU …

We consider the problem of automatic modulation recognition for either digital or analogue
modulation types. The receiver does not have any knowledge about the modulation type of …

This article investigates the problem of distributed channel selection for opportunistic
spectrum access systems, where multiple cognitive radio (CR) users are spatially located …

Blind signal classification, a major task of intelligent receivers, has important civilian and
military applications. This problem becomes more challenging in multi-antenna scenarios …

The spectrum access system (SAS) is being deployed as a key component of the emerging
spectrum sharing paradigm to address the spectrum crunch facing the US wireless industry …