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Nowadays, the problems exist in campus-based network construction mainly are repeating construction, low utility of resources and so on. Cloud computing, as a new type of services computing which intends to share resources over long distances, provides a good technology reference for campus-based network construction. After an intensive study of the definition and features of cloud computing, the...
Peer-to-peer overlay is vulnerable to distributed denial of service (DDoS) because of its characteristics such as openness, dynamics. Existing solutions are designed for a network-layer but overlay. A novel distributed method based on peer level model to inhibit DDoS attack is presented. Level model which can identify malicious nodes collects four factors which involve a twofold content including...
Caches play a major role in the performance of high speed computer systems. Trace driven simulator is the most widely used method to evaluate cache architectures. However, as the cache design moves to more complicated architectures, along with the size of the trace is becoming larger and larger. Traditional simulation methods are no longer practical due to their long simulation cycles. Several techniques...
An efficient collision detection scheme based on component technology using oriented bounding box trees is presented. Firstly, model is divided into parts and then a component hierarchical tree is built in a bottom-up manner using the OBB of these parts. In order to construct component OBB of two parts quickly, a simple way to compute two OBBs' convex hull is also proposed. As a result, not only parts'...
A "man-in-the-onboard-loop" solving scheme is proposed in order to overcome the disadvantages of UAV control method and solve the problems on UAV pilot training. This scheme is an integration platform for UAV telepresence and simulation. It uses "telepresence" virtual reality technology to merge the dynamic images from airborne camera and the geography data information generated...
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