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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Spectrum Handover Mechanism Based on Channel Scheduling in Cognitive Radio Networks
verfasst von : Bin Ma, Xianzhong Xie
Erschienen in: Advanced Research on Electronic Commerce, Web Application, and Communication
Verlag: Springer Berlin Heidelberg
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In this study, we address the spectrum handover mechanism for proactive-decision in cognitive radio networks. Spectrum handover occurs when the primary users suddenly appear and the secondary users are using the particular primary user’s licensed channel. The proactive-sensing spectrum handover which the target channel is pre-determined. And handover avoid the sensing time, but the pre-determined target channel may not be available. So we develop a spectrum handover mechanism by using an efficient channel-scheduling algorithm to reduce disabled channel. Its basic idea is in that a new packet is scheduled by migrating some packets to other channels if none of any idle channels can accommodate it; otherwise repeating the other migrate or stay channel processes.