Jungchae Shin

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In this paper, an integrated self-organization scheme is proposed for tree topological underwater sensor networks (UWSNs) with an efficient medium access control (MAC) protocol. This scheme enables many sensor nodes to organize the tree topology in a distributed manner by utilizing just few types of control messages, and handle link-hole problems adaptively(More)
A novel moving object classification system using UWB radar and classifier based on decision tree structure are proposed. By using the proposed radar system, we construct UWB radar signal database by considering two movements and four moving directions of human and dog. The proposed classifier is based on nonlinear support vector machine (SVM) using RBF(More)
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