Modelo de asignación multicanal con equidad para la movilidad espectral en redes de radio cognitiva

Abstract

Cognitive radio networks (CRN) respond to the need to optimize existing resources within the network and fundamentally the use of the spectrum. This translates as an opportunity to improve the level of service for users of wireless technologies, making opportunistic use of the available spectrum, and therefore improving spectral efficiency. CR provides a use efficient spectrum allowing the secondary user (SU) to opportunistically take advantage of the portions or channels of the licensed spectrum that are not being used by the primary user (PU), which are called spectral opportunities. This research book aims to develop a model that allows EDs to take advantage of these spectral opportunities, including through a multi-channel transmission approach, As long as the number of spectral and SU opportunities allows it, that is, to SUs with real-time applications that require greater bandwidth, the model could assign several frequency channels for transmission. However, the above will only be possible if the number of SU requiring the spectral resource is less than the number of spectral opportunities, so that the proposed model will incorporate a Fairness criterion to guarantee an allocation equitable provision of such opportunities to SUs.