Symeon Papavassiliou

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In the current worldwide ICT scenario, a constantly growing number of ever more powerful devices (smartphones, sensors, household appliances, RFID devices, etc.) join the Internet, significantly impacting the global traffic volume (data sharing, voice, multimedia, etc.) and foreshadowing a world of (more or less) smart devices, or " things " in the Internet(More)
—In this letter, we propose an entropy-based mod-eling framework for supporting route stability in mobile ad hoc wireless networks. The basic motivations of the proposed modeling approach stem from the commonality observed in the location uncertainty in mobile ad hoc wireless networks and the concept of entropy. The corresponding results demonstrate that(More)
In this paper an anomaly detection system based on Grid middleware that supports the efficient, scalable and secure monitoring of multiple instruments and sensors, is proposed and investigated. The Grid provides the means to control the sensors and gather information with security and reliability. The system includes a Decision Support Service that fuses(More)