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IP-Oriented QoS in Next Generation Networks: application to wireless networks

Prof. Pascal Lorenz
University of Haute Alsace, IUT de Colmar, Colmar, France

Date & time: Tuesday, June 14, 2005, 9:00-13:00
Location: Faculty of Electrical Engineering and Computing, room: Grey Hall

ABSTRACT

Emerging Internet Quality of Service (QoS) mechanisms are expected to enable wide spread use of real time services such as VoIP and videoconferencing. The "best effort" Internet delivery cannot be used for the new multimedia applications. New technologies and new standards are necessary to offer Quality of Service (QoS) for these multimedia applications. Therefore new communication architectures integrate mechanisms allowing guaranteed QoS services as well as high rate communications.

The service level agreement with a mobile Internet user is hard to satisfy, since there may not be enough resources available in some parts of the network the mobile user is moving into. The emerging Internet QoS architectures, differentiated services and integrated services, do not consider user mobility. QoS mechanisms enforce a differentiated sharing of bandwidth among services and users. Thus, there must be mechanisms available to identify traffic flows with different QoS parameters, and to make it possible to charge the users based on requested quality. The integration of fixed and mobile wireless access into IP networks presents a cost effective and efficient way to provide seamless end-to-end connectivity and ubiquitous access in a market where the demand for mobile Internet services has grown rapidly and predicted to generate billions of dollars in revenue.

This tutorial covers to the issues of QoS provisioning in heterogeneous networks and Internet access over future wireless networks as well as MPLS, DiffServ, IntServ frameworks. It discusses the characteristics of the Internet, mobility and QoS provisioning in wireless and mobile IP networks. This tutorial also covers routing, security, baseline architecture of the inter-networking protocols and end to end traffic management issues.

TUTORIAL OUTLINE

• Concepts of the QoS
• traffic mechanims, congestion
• generations of Internet
• Mechanisms and architectures for QoS
• New communication architectures
• Mechanisms allowing QoS
• MPLS
• DiffServ
• IntServ
• QoS in Wireless Networks
• Mobile Internet applications
• Mobile, satellites and personal communications
• Mobile and wireless standardization IEEE 802.11, IEEE 802.16, IEEE 802.20
• WLL, WPAN, WLL

INTENDED AUDIENCE: This tutorial is intended for educators, researchers, students and people interested in gaining an overall understanding of the QoS and of the next generation networks.

SPEAKER'S BIOGRAPHY

Pascal Lorenz (lorenz@ieee.org) received a PhD degree from the University of Nancy, France. Between 1990 and 1995 he was a research engineer at WorldFIP Europe and at Alcatel-Alsthom. He is a professor at the University of Haute-Alsace and responsible of the Network and Telecommunication Research Group. His research interests include QoS, wireless networks and high-speed networks. He was the Program and Organizing Chair of the IEEE ICATM'98, ICATM'99, ECUMN'00, ICN'01, ECUMN'02 and ICT'03, ICN’04 conferences and co-program chair of ICC’04. Since 2000, he is a Technical Editor of the IEEE Communications Magazine Editorial Board. He is the secretary of the IEEE ComSoc Communications Systems Integration and Modelling Technical Committee. He is senior member of the IEEE, member of many international program committees and he has served as a guest editor for a number of journals including Telecommunications Systems, IEEE Communications Magazine and LNCS. He has organized and chaired several technical sessions and gave tutorials at major international conferences. He is the author of 3 books and 135 international publications in journals and conferences.

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