Spectrum management framework in next generation wireless networks

Abstract

Cognitive radio (CR) technologies provide the required infrastructure to achieve dynamic spectrum access (DSA) which is a promising approach to increase spectral utilization in next generation (xG) wireless network. DSA allows CR to operate on the best available channel. This paper focuses on spectrum management in next generation wireless networks that employ DSA. In particular, this paper presents the framework for spectrum management in xG network which is composed of xG components, i.e., xG base station, CR enable xG user and a spectrum broker. In our model, spectrum broker has been considered as a central entity, which controls and provides time-bounded access to a un-utilized spectrum band to xG user and helps to implement the spectrum management, billing and policing. In this paper, we also present the signaling information exchanges between spectrum broker and various other entities of xG network.