Characterization of spectrum mobility and channel availability in CRMANETs

in cognitive radio (CR), CR users or also known as secondary users (SUs) are considered licensed spectrum. During the case when the primary user claims the band of the spectrum that is occupied by the SU ongoing call must be transferred to another unused spectrum band. The variation in spectrum band is called spectrum mobility. In this paper, we investigate an analytical model to show the effect of different event on channel availability and spectrum mobility in mobile cognitive radio Ad hoc networks (CR-MANET), along with emphasize on those factors and types of mobility, which necessitate comprehensive mobility and handoff management in CR-MANETs. KeywordsCognitive Radio, Spectrum Mobility, Handoff Management, node mobility.