Abstract

HEMANDEZ, Cesar; PEDRAZA, Luis; PAEZ, Ingrid  and  RODRIGUEZ-COLINA, E. Analysis of Spectrum Mobility in Cognitive Radio Networks. Inf. tecnol. [online]. 2015, vol.26, n.6, pp.169-186. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642015000600018.

A review of the spectrum mobility in cognitive radio networks, describing the spectrum Handoff, their classifications, current approaches, decision criteria and evaluation metrics according to the current literature is presented. The review was based on the analysis of recent mainstream publications with their respective citations, trying to provide a comprehensive reference framework of the current literature on the spectrum mobility in cognitive radio networks. The main results determine the importance of scalable and optimizing detection and targeting channel, taking into account the traffic load, the behavior of the user, the interference levels, and the characterization of the spectrum, the type of application and the need for multiple frequency channels. The study suggests that it is necessary to design adaptive algorithms to optimize the resources involved during the spectrum Handoff.

Keywords : opportunistic access; dynamic spectrum allocation; spectral Handoff; cognitive radio; mobile wireless networks.

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