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Multicast join delay is an important metric to evaluate the performance of multicast services. However, there is little analytic study of this metric. In this paper, we convert the multicast join delay into the average node-tree distance problem in the graph, and propose an area-overlay method to analyze the multicast join delay against the different topology sizes and multicast densities. We set...
With the development of Mobile IPv6 and multicast technology, mobile multicast becomes a research hotspot. Based on two basic mobile multicast methods, the Bi-directional Tunnel (BT) method and the Remote Subscription (RS) method, some mobile multicast schemes have been proposed. However, most of them evaluate the performance by means of analysis and simulation, but lack of testing the performance...
A fast rerouting scheme is proposed to guarantee the QoS performance of rerouted path when handling link and node failures. The new scheme is based on deflection routing mechanism and improves on two aspects: first, it can promptly handle single node failure as well as single link failure, second, QoS metric is taken into accounted when calculating recovery routes. Simulation results show that the...
Facing to a class of faults whose dynamic characteristics are known, but initial states and initial instants are unknown, fault diagnosis and self-restore fault-tolerant control are researched for linear systems with state delays. A novel observer-based approach to fault diagnosis is proposed, and a design approach to fault-tolerant control law is given. By introducing a special linear transformation,...
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