A Medium Access Protocol for Cognitive Radio Networks Based on Packet's Collision and Channels' Usage

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Provided by: The Society of American Magicians
Topic: Networking
Format: PDF
In Cognitive Radio Networks (CRNs); the unlicensed users named Secondary Users (SUs) are allowed to share the licensed wireless spectrum band with its licensed users name Primary Users (PUs) but without degradation in the PU's Quality of Service (QoS). As all the SUs have the same priority to access the licensed spectrum band; a spectrum sharing protocol is needed to fairly divide the available spectrum band among these SUs. Spectrum sharing protocols in CRNs are similar to Medium Access Control (MAC) protocols in regular networks. In this paper; a time slotted spectrum sharing protocol named Channel Usage and Collision Based MAC protocol (CUCB-MAC) is proposed.
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