Cognitive radio (CR) has emerged as a promising technology to exploit the unused portions
of spectrum in an opportunistic manner. The fixed spectrum allocation of governmental …

This paper provides an overview of cognitive radio (CR) networks, with focus on the recent
advances in resource allocation techniques and the CR networks architectural design. The …

Designing an efficient spectrum assignment (SA) mechanism is a key issue for realizing
dynamic spectrum access in cognitive radio network. In multi-channel selection based SA …

We study the maximum achievable rate of a two-hop amplified-and-forward (AF) relaying
millimeter-wave (mm-wave) system, where two AF relaying schemes, ie, half-duplex (HD) …

Sensing falsification is a key security threat in cooperative spectrum sensing in cognitive
radio networks. Intelligent malicious users (IMUs) adjust their malicious behaviors according …

For about the past decade and a half research efforts into cognitive radio networks (CRNs)
have increased dramatically. This is because CRN is recognized as a technology that has …

In this paper, we consider the channel assignment problem for cognitive radio networks with
hardware-constrained secondary users (SUs). In particular, we assume that SUs exploit …

In this paper, we propose a semi-distributed cooperative spectrum sensing (SDCSS) and
channel access framework for multi-channel cognitive radio networks (CRNs). In particular …

Shared spectrum systems facilitate spectrum allocation to unlicensed users without harming
the licensed users; they offer great promise in optimizing spectrum utility, but their …

In most existing routing algorithms for mobile ad hoc cognitive networks (MACNets), nodes
are configured with a fixed even maximal transmission power. Links set up by such the …