DISTRIBUTED COORDINATION METHOD FOR COMMON CONTROL CHANNEL SELECTION IN MULTICHANNEL AD-HOC COGNITVE RADIO

摘要

PURPOSE: A method for selecting a distributed coordination common control channel for a multi-channel ad-hoc network in a cognitive radio channel is provided to accumulate user appearance probability and average idle time of each node through a tree structure. CONSTITUTION: A node broadcasts CC_IVT to adjacent nodes(105). A general node receiving CC_IVT re-calculates a candidate channel through CCL of CC_IVT and an available channel(108). When the candidate channel exists, a node transmitting CCT-IVT is stored as a parent node(109,111). When a hop count is 0, CC_RPT is transmitted to the parent node(112,114). A CR(Cognitive Radio) system calculates an average-accumulated main user appearance probability and average-accumulated main user idle time(116,117).