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Full-Text Articles in Physical Sciences and Mathematics
Anomaly Detection Techniques For Ad Hoc Networks, Chaoli Cai
Anomaly Detection Techniques For Ad Hoc Networks, Chaoli Cai
Dissertations
Anomaly detection is an important and indispensable aspect of any computer security mechanism. Ad hoc and mobile networks consist of a number of peer mobile nodes that are capable of communicating with each other absent a fixed infrastructure. Arbitrary node movements and lack of centralized control make them vulnerable to a wide variety of unknown and known attacks from inside as well as from outside. In this dissertation we propose two efficient statistical techniques for anomaly detection for these networks.
In order to take into account incomplete testing samples and the interaction among multiple features, we present BANBAD •- a …
Topology Control Using Joint Power And Beam-Width Control In Hybrid Rf/Fso Mesh Networks, Osama Awwad
Topology Control Using Joint Power And Beam-Width Control In Hybrid Rf/Fso Mesh Networks, Osama Awwad
Dissertations
Most wireless networks are deployed strictly in the radio frequency (RF) domain, since RF channels provide natural support for radial broadcast operations. However, the downside of RF channels is that they introduce many limiting externalities that make providing scalable quality of service (QoS) support difficult, if not intractable. These well-known technical challenges include bandwidth scarcity, lack of security, high interference, and high bit error rates.
Faced with such daunting obstacles to QoS, the use of Free Space Optics (FSO) for wireless communications has been proposed in which it has the potential to support higher link data rates compared to present …