… is to enable flexible spectrum access by employing dynamic spectrum allocation techniques
[… of users or networks adapt their operation and share access to the same spectral region in …

… radio or DSA networks, eg, see [1]. While these survey studies primarily focus on network
design problems for cognitive radio networks… the art in spectrum sensing and spectrum sharing. …

… scheme in this novel cooperative CR (CCR) network context. … the context of the overlay
spectrum access scheme aiming for … overlay spectrum access scheme based on the CCR network…

… spectrum access schemes for cognitive radio under different communication requirements.
In fact, cognitive radio based on dynamic spectrum access has … wireless networks. Cognitive …

… users can opportunistically access unused spectrum vacated by … We present three spectrum
access schemes using different sens… and design criteria on opportunistic spectrum access. …

… paper, dynamic spectrum access (DSA) in multi-channel cognitive radio networks (CRNs)
is … We consider a cognitive radio network which composes of two types of users: the primary …

… trum access scheme. To provide spectrum access priority, we consider the absence or
presence of buffering mechanism for the cognitive SU, together with spectrum handoff capability. …

… requirements in such networks. Performance metrics are among the key factors in ensuring
successful multiband spectrum access, and yet they have been scattered in the literature …

… techniques as well as possible applications of cognitive radio in 5G wireless … and development
of spectrum access techniques and management of cognitive radio networks featuring a …

… With perfect sensing, we develop an optimum spectrum access strategy under generic PU
… based spectrum access strategy that achieves close-to-optimal performance. Moreover, we …