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Behaviour of commercial video streaming applications
2002 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The ability to assess streaming quality is of high importance for networked multimedia applications. In the context of cellular devices, this is of interest as these devices will support many networked multimedia services in the future. This thesis attempts to study the properties related to streaming quality of three popular streaming applications using only recorded packet logs. Investigated properties include response times to changes in available bandwidth, packet resends and TCP-friendliness. Streaming statistics during ideal network conditions are also presented. Streaming products from Microsoft, Apple and RealNetworks have been evaluated. The Apple products lacks the ability to dynamically switch between different encoded bitrates, which the others support. The Microsoft products show a more aggressive behaviour than RealNetworks, but are less TCP-friendly. The results indicate that the RealNetworks behaviour may be preferable before the others. A more comprehensive study should include more tests and try to find correlation with subjective quality assessment. The thesis also describes a complete streaming performance testing environment, including objective packet log measures and a system for performing subjective tests.

Place, publisher, year, edition, pages
2002.
Keyword [en]
Technology, streaming, quality, measurements, packet-log-analysis
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-47240ISRN: LTU-EX--02/349--SELocal ID: 4cd2a719-511f-494a-b361-512ebd1c6e73OAI: oai:DiVA.org:ltu-47240DiVA: diva2:1020560
Subject / course
Student thesis, at least 30 credits
Educational program
Computer Science and Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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