Dian Fan

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This paper concentrates on self-healing in reconfigurable WLANs. To cope with the accidental network failure, a Distributed Network Self-Healing (DNSH) mechanism, including automatic network failure detection and appropriate network failure recovery is designed for independent reconfigurable APs in high-density WLANs. By automatically applying the(More)
Delaunay meshes (DM) are a special type of triangle mesh where the local Delaunay condition holds everywhere. We present an efficient algorithm to convert an arbitrary manifold triangle mesh <i>M</i> into a Delaunay mesh. We show that the constructed DM has <i>O</i>(<i>Kn</i>) vertices, where <i>n</i> is the number of vertices in <i>M</i> and <i>K</i> is a(More)
In cognitive radio systems, cooperative spectrum sensing is executed among multiple secondary users to detect spectrum holes without causing deleterious interference to primary users. The larger the number of cooperating secondary users, the greater the performance gain of cooperative sensing. However, the complexity of the cognitive radio system will(More)
Intrinsic Delaunay triangulation (IDT) naturally generalizes Delaunay triangulation from R<sup>2</sup> to curved surfaces. Due to many favorable properties, the IDT whose vertex set includes all mesh vertices is of particular interest in polygonal mesh processing. To date, the only way for constructing such IDT is the edge-flipping algorithm, which(More)
In this paper, we study multiple description (MD) coding and transport for real-time video using multiple asymmetric paths in a packetized network. In particular, we construct the motion- compensated (MC) MD codes using MC-FGS video coder, based on the statistical characteristics and the asymmetry of the multiple routing paths. The MCMDs are the optimally(More)