Συντάχθηκε 08-11-2012 11:18
από Galateia Malandraki
Email συντάκτη: gmalandraki<στο>tuc.gr
Ενημερώθηκε:
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Ιδιότητα: υπάλληλος ΑΡΜΗΧ.
ΠΟΛΥΤΕΧΝΕΙΟ ΚΡΗΤΗΣ
Τμήμα Ηλεκτρονικών Μηχανικών & Μηχανικών Υπολογιστών
ΠΑΡΟΥΣΙΑΣΗ ΔΙΠΛΩΜΑΤΙΚΗΣ ΕΡΓΑΣΙΑΣ
ΜΑΡΑΤΣΩΛΑΣ ΕΥΑΓΓΕΛΟΣ
με θέμα
“Αστυνόμευση της Κίνησης Βίντεο Βάσει Δραστηριότητας: Μια Νέα Προσέγγιση ”
“Activity-Based Video Traffic Policing: A New Paradigm”
Παρασκευή 9 Νοεμβρίου 2012, 12μμ
Αίθουσα Β1003, Πολυτεχνειούπολη
Εξεταστική Επιτροπή
Επ. Καθ. Πολυχρόνης Κουτσάκης (επιβλέπων)
Καθ. Μιχάλης Πατεράκης
Επ. Καθ. Άγγελος Μπλέτσας
Abstract
The subject of traffic policing for computer communication networks has been studied extensively in the literature. However, the constant development of new multimedia applications, which are “greedy” in terms of bandwidth and Quality of Service (QoS) requirements, calls for new approaches to the traffic policing problem.
Using as a motivation recent work, which has shown that the classic traffic policing mechanisms provide unnecessarily strict policing for conforming but bursty video users, we propose five simple and efficient new mechanisms, which take into consideration and exploit video activity and the Group-of Pictures (GoP) pattern of the traces. Our proposed mechanisms do not use a token generator based on a fixed rate, but vary the token generation rate according to specific video activity-based algorithms.
The proposed mechanisms show significant improvement in the results for conforming users, and that dynamic traffic policing can provide much higher efficiency than the widely used static mechanisms. Our mechanisms also show that they can provide comparable policing results with the classic mechanisms for non-conforming video users. One of the new mechanisms, the Frame Size Aware Token Bucket (FSA-TB) is shown to clearly excel in comparison to all other policing approaches.
To the best of our knowledge, this is the first time that activity-based video traffic policing is proposed in the relevant literature.
Συνημμένα:
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Αnakoinwsi-Maratsolas.doc
Μεταφορτώσεις: 152,
Μέγεθος: 33 KB application/msword
