The Internet of Things (IoT)-centric concepts like augmented reality, high-resolution video
streaming, self-driven cars, smart environment, e-health care, etc. have a ubiquitous …

Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless
systems. This paper surveys the fundamental capacity limits and associated transmission …

Today's wireless networks are characterized by a fixed spectrum assignment policy.
However, a large portion of the assigned spectrum is used sporadically and geographical …

Compounding the confusion is the use of the broad term cognitive radio as a synonym for
dynamic spectrum access. As an initial attempt at unifying the terminology, the taxonomy of …

In this survey paper, we characterize the learning problem in cognitive radios (CRs) and
state the importance of artificial intelligence in achieving real cognitive communications …

In cognitive networks, cognitive (unlicensed) users need to continuously monitor spectrum to
detect the presence of primary (licensed) users. In part I, we have illustrated the benefits of …

Sensing/monitoring of spectrum-availability has been identified as a key requirement for
dynamic spectrum allocation in cognitive radio networks (CRNs). An important issue …

We propose the cross-layer based opportunistic multi-channel medium access control
(MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the …

Cognitive radio allows for usage of licensed frequency bands by unlicensed users.
However, these unlicensed (cognitive) users need to monitor the spectrum continuously to …

Radio spectrum resource is of fundamental importance for wireless communication. Recent
reports show that most available spectrum has been allocated. While some of the spectrum …