The Gilbert-Elliott Model for Packet Loss in Real Time Services on the Internet

Conference: MMB 2008 - 14th GI/ITG Conference - Measurement, Modelling and Evalutation of Computer and Communication Systems
03/31/2008 - 04/02/2008 at Dortmund, Germany

Proceedings: MMB 2008

Pages: 15Language: englishTyp: PDF

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Haßlinger, Gerhard (T-Systems, Deutsche-Telekom-Allee 7, D-64295 Darmstadt, Germany)
Hohlfeld, Oliver (Darmstadt University of Technology, Merckstr. 25, D-64283 Darmstadt, Germany)

The estimation of quality for real-time services over telecommunication networks requires realistic models for impairments and failures during transmission. We focus on the classical Gilbert-Elliott model whose second order statistics is derived over arbitrary time scales and used to fit packet loss processes of traffic traces measured in the IP backbone of Deutsche Telekom. The results show that simple Markov models are appropriate to capture the observed loss pattern.