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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...
Anomaly detection in TCP/IP networks is very important to protect computer networks from cyber attacks. In recent years, several router-based observation schemes have been proposed for anomaly detection. Their effectiveness needs to be assessed. Furthermore, anomaly detection in TCP/UDP networks has not been fully explored using the observation schemes. In this paper, we conduct comparative studies...
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...
Fingerprint biometric is one of the most successful biometrics applied in both forensic law enforcement and security applications. Recent developments in fingerprint acquisition technology have resulted in touchless live scan devices that generate 3D representation of fingerprints, and thus can overcome the deformation and smearing problems caused by conventional contact-based acquisition techniques...
While witnessing a remarkable and rapid emergence of Wireless Sensor Network (WSN) that seems to facilitate promising features, congestion problem still remains the key issue that attract very high attention in research community. Congestion not only severely degrades network performance, but also gives adverse quality to various related applications such as real-time monitoring systems that demands...
SCADA (supervisory control and data acquisition) systems control and monitor industrial and critical infrastructure functions, such as the electricity, gas, water, waste, railway and traffic. Recent attacks on SCADA systems highlight the need of a SCADA security testbed, which can be used to model real SCADA systems and study the effects of attacks on them. We propose the architecture of a modular...
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