Predavanje "Quality Control of Packet Transmission with Application to Peer-to-Peer Video Data"

Sažetak predavanja:

Dealing with traffic control of multimedia services in packet-switched networks, we present
new quality indices that are applicable to any streaming application. Considering the given capacity of a bottleneck link, the latter comprise the time delay between successfully delivered packets, the byte loss due to a lack of capacity and the lossless time that is the duration of successful transmission of packets. Since several active streams may share the capacity of the channel, we propose an algorithm of equivalent bandwidth management in the case of a bufferless channel. We estimate a smallest equivalent capacity which provides the best possible trade-off between quality indices. We use inter-arrival times between packets and packet lengths of the real-time packet traffic. We illustrate our new methodology for peer-to-peer video data arising from an aggregated flow of packets exchanged with a selected peer in the overlay network of a SopCast session and estimate the proposed indices and required bandwidth.

Kratka biografija:

Natalia Markovich received the M.S. degree in Mathematics (with distinction) from the Applied Mathematics and Cybernetics Department of Tver University, Russia, Ph.D. and Doctor Sciences degree in Statistics from the Institute of Control Sciences of Russian Academy of Sciences in Moscow. She is a Main Scientist in the Institute of Control Sciences, and her research interests concern extreme value theory, nonparametrics, statistical analysis of measurements in telecommunication systems, including the Internet. She has published over 60 papers and the book "Nonparametric analysis of univariate heavy-tailed data. Research and Practice", Wiley, 2007. She was a Visiting Scientist in Geomedical Research Unit of the Heidelberg Academy for the Humanities and Sciences, at the Max Planck Institute for Demographic Research, Rostock, Germany, in Lund University, Sweden, ETH Zuerich, Darmstadt Deutsche Telekom. She is invited as referee for International Journals: IEEE Transactions on Signal Processing, Inverse Problems in Engineering, Annals of Statistics, Automation and Remote Control, Mathematical Reviews etc.