search query: @supervisor Virtamo, Jorma / total: 67
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Author: | Buonerba, Andrea |
Title: | Skype Traffic Detection and Characterization |
Publication type: | Master's thesis |
Publication year: | 2007 |
Pages: | vii + 72 Language: eng |
Department/School: | Sähkö- ja tietoliikennetekniikan osasto |
Main subject: | Tietoverkkotekniikka (S-38) |
Supervisor: | Virtamo, Jorma |
Instructor: | |
Electronic version URL: | http://urn.fi/urn:nbn:fi:tkk-009990 |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
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Location: | P1 Ark S80 | Archive |
Keywords: | Skype traffic statistical classification fingerprint |
Abstract (eng): | Skype is a very popular VoIP software which has recently attracted the attention of the research community and network operators; furthermore Skype uses a proprietary signalling design and its source code is unavailable. This makes its analysis really important since the classification of IP flows becomes increasingly crucial in modern network management platforms. Traditional classification systems based on packet headers are rapidly becoming ineffective. In this work after a general analysis of Skype protocol and traffic in both time and frequency domain, a new classification method is presented. It is based on statical classification of the flow, using only three basic properties of IP packets: their size, interarrival time and order of arrival. The whole process is based on a new quantity called Protocol Fingerprint. Its aim is to express these quantities in an efficient way. An important part in the classification process is taken by a Gaussian filter that smooths the protocol fingerprints avoiding misclassifications caused by any kind of noise generated in the network. Even if this technique is at an early stage of development and requires more work, it is quite promising. |
ED: | 2007-12-10 |
INSSI record number: 35013
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