In this paper, we introduce the application of CR-based spectrum sharing concepts to
enable opportunistic relaying operations in cellular networks. In particular,(i) we build on …

With the advent of smarter technologies in cellular networks, often the bands used for lower
versions remain unoccupied. To utilize that, in this paper, a new paradigm of cognitive radio …

Cognitive Radio recently arises as the enabling technology for opportunistic spectrum
sharing, has drawn significant attentions from the wide range of research communities …

Cognitive radio (CR) networking achieves high utilization of the scarce spectrum resources
without causing any performance degradation to the licensed users. Since the spectrum …

Cognitive radio (CR) is a powerful solution that can significantly improve the utilization of the
precious limited radio spectrum. It allows secondary users (SUs) to opportunistically access …

Heavy traffic over the unlicensed portion of the spectrum along with inefficient usage of the
licensed spectrum gave impetus for a new spectrum allocation policy, the main purpose of …

Considering the scenario of cognitive radio network (CRN) single channel opportunistic
spectrum access, the minimum rate gap-based access strategy (MRG-CPA) is established …

Opportunistic spectrum access (widely known as cognitive radio) enables the use of
unoccupied licensed radio spectrum and thus assures efficient use of the spectrum. In this …

This letter proposes a multi-channel parallel transmission mechanism for channel
assignment in cognitive radio (CR) networks. The proposed mechanism enables secondary …

In this paper, we propose a cooperative spectrum sharing scheme based on decode and
forward relaying and a three phase protocol in cognitive radio networks for a secondary …