Date: 08 Jan 2007
From: jyrki@diku.dk
Subject: M.Sc. thesis on on-demand streaming

Oral defence of M.Sc. thesis: Distributing usage of bandwidth for
on-demand streaming
Defenders: Jacob de Fine Skibsted and Stephan Lynge Herlev Larsen
Censor: Anders Færgemand Høyer (TDC)
Supervisors: Per Høgh and Jyrki Katajainen

Time:  Monday, 15 January 2007, 10.15–12.00
Place: Lille Auditorium at DIKU

The defence will be held in Danish.

Abstract:

The overall goal in this work was to distribute the usage of bandwidth
in a client-server network providing video-on-demand streaming.  To
achieve this a protocol for on-demand streaming was designed and
implemented by employing methods resembling those used in peer-to-peer
networks.

A protocol specification which enables forwarding of data between
clients to lower the bandwidth consumption of the server was
developed. The data stream is divided into pieces in order to enable
multiple clients to send part of the data stream to a single
receiver and at the same time offer the full functionalities of
on-demand streaming such as pause and skip. Finally, the primary
functionalities of the protocol specification were implemented and
used in a set of test applications.

We succeeded in designing a protocol which can distribute the overall
bandwidth in a logical network offering video on-demand streaming.
Thus the bandwidth usage of the central server will be lowered. Based
on the design a fully operational implementation was developed.
Analysis of the actual savings is still open as this would demand a
large-scale real-life usage of the protocol together with empirical
measurements.

The thesis is available online at
http://www.diku.dk/~jyrki/PE-lab/Jacob-Stephan/

PE-lab's home page: http://www.diku.dk/~jyrki/PE-lab/