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This paper proposes a sliding-mode observer for real-time DDoS detection on network routers, which will be used for connection-oriented services. The developed observers estimate the traffics going through the routers and identify those connections without the following-up packets based on the real-time queue length information inside the routers. These identified traffics are suspicious DDoS attacks...
A fast terminal sliding mode (FTSM) observer is proposed to estimate the anomaly seen as an external disturbance perturbing into the queue dynamics in the TCP/IP networks. The TCP traffic dynamic behaviour, which is represented by a TCP/IP fluid-flow model, can be captured by the observer in the router level. A smooth control signal for the observer based on the fast TSM strategy is obtained and directly...
It is known that analytic modelling for TCP latency is a non trivial task. Recently, some significant progress has been made, such as the comprehensive result by Sikdar et al. However, models similar to these often rely on trial and error methods such as "data fitting". This can lead to a very limited scope for the resulting model and also large estimation error. In this paper, we propose...
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