April 3-5, 2002
Embassy Suites Phoenix North
Phoenix, Arizona

Tutorial Descriptions

All tutorials will be half-day tutorials. Note that Tutorials 1 and 2 are held in parallel in the morning, and that Tutorials 3 and 4 are held in parallel in the afternoon.

Tutorial 1: Ad hoc Networking

Elizabeth M. Belding-Royer, University of California, Santa Barbara
Sung-Ju Lee, Hewlett-Packard Laboratories

Ad hoc networking, while not a new idea, has received a lot of attention in the past few years.  As such, numerous new protocols have been developed that are revolutionizing the way this communication works.  This tutorial will educate the attendees on the fundamentals of ad hoc networking technology and research, as well as the state of the art in this area.  We will begin the tutorial with a description of the characteristics of wireless ad hoc networks that distinguish them from their wired and cellular network counterparts. We will then cover recent unicast and multicast routing approaches in great detail.  In addition, we will cover Bluetooth and enabling technologies such as IEEE 802.11.  We will conclude with recent implementation and standardization efforts, as well as directions for future research.  Attendees will gain an in-depth understanding of ad hoc networking issues, as well as of many of the proposed solutions that are likely to be, or have already been, adopted by industry.

Intended audience
This tutorial is intended for researchers and engineers in both industry and academia, as well as for anyone who would like a deeper understanding of mobile networking and the current state of research in this area.  The tutorial is designed to provide an overview of the issues related to mobile networking, as well as in-depth coverage of current efforts in enabling communication, at both the network and MAC layers, in these networks.

Elizabeth M. Belding-Royer is an Assistant Professor in the Department of Computer Science at the University of California, Santa Barbara. She completed her Ph.D. in Electrical and Computer Engineering at UC Santa Barbara in 2000.  Elizabeth's research focuses on mobile networking, specifically routing protocols, security, scalability,address autoconfiguration, and adaptability.  Elizabeth is the author of numerous papers related to ad hoc networking, and is an active participant of the IETF working group for Mobile Ad hoc Networks. Elizabeth serves on the technical program committee and organizing committee for various networking related conferences.  She is a member of the ACM, ACM SIGMOBILE, IEEE, and IEEE Communications Society.  See http://www.cs.ucsb.edu/~ebelding for further details.

Sung-Ju Lee is a research scientist/engineer at the Internet Systems & Storage Lab (ISSL) of Hewlett-Packard Laboratories. S.-J. received his M.S. and Ph.D. in Computer Science at the University of California, Los Angeles, and B.S. at Hanyang University, Korea. S.-J. published over twenty papers in the field of mobile networking and content delivery networks. He is a co-guest editor of the Wireless Communications & Mobile Computing's special issue on Mobile Ad Hoc Networking, and serves as a technical program committee and organizing committee member of various networking related conferences. He is a member of IEEE, IEEE Communications Society, IEEE Computer Society, ACM, ACM SIGCOMM, and ACM SIGMOBILE. His research interests include mobile networking & computing, wireless networks, ad hoc networks, content distribution networks, personal area networks, streaming media, and performance evaluation. See http://www.hpl.hp.com/personal/Sung-Ju_Lee for further details.

Tutorial 2: Distribution Protocols for Video-on-demand

Jehan-François Pâris, University of Houston

This tutorial provides a global overview of the various techniques that can be used to reduce the cost of video-on-demand services.

Despite all the appeal of its concept, video-on-demand has yet to succeed in the marketplace.  The main reason behind this lack of success is the high bandwidth requirements of the service, which necessitate huge server farms and a costly network infrastructure.

The last five to ten years have seen many proposals aiming at reducing the bandwidth requirements of video-on-demand services.  All these proposals attempt to share as much data as possible among overlapping requests to the same video. They differ in many ways including the role played by the customer set-top box and the quality of service being provided.

We will introduce video-on-demand, discuss its bandwidth requirements and their impact on the different components of a video-on-demand service (server, network and various types of customer set-top boxes).  We will then present some early distribution that do not require any changes to the set-top-box such as batching, piggybacking, staggered broadcasting and mention their limitations.

The remainder of the tutorial will be dedicated to the more recent distribution protocols, among which:

We will conclude by discussing partial preloading and how to implement interactive commands.

Intended Audience
This tutorial should appeal to students, developers, and researchers interested in video-on-demand. A basic computer science background is the sole prerequisite.

Jehan-François Pâris is associate professor of computer science at the University of Houston.  He has authored papers on video-on-demand, the management of replicated data, the optimization of memory hierarchies and distributedsystems in general.  His current research on distribution protocols for video-on-demand is supported by the Texas Advanced Research Program and the National Science Foundation.

Dr. Pâris obtained his Ph. D. from the University of California, Berkeley.  Before joining the University of Houston, he was with Purdue University and the University of California, San Diego.  He is a member of the Association ofComputing Machinery and a senior member of the IEEE Computer Society.

Tutorial 3: QoS in Next Generation of Wireless Networks

Pascal LORENZ, University of Haute-Alsace

Emerging Internet Quality of Service (QoS) mechanisms are expected toenable widespread use of real time services; for example, VoIP and video conferencing. "Best effort" Internet delivery cannot be used forthe 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 to guarantee QoS services as well as high rate for the communications.The promising service level agreement to a mobile Internet user is hard to come by, since there may not be enough resources available in some parts of the IP/ATM networks as mobile terminal is moving into. The emerging QoS architectures, differentiated services and integrated services do not consider the network nodes are mobile. 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. Integration of fixed and portable 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 demands on mobile Internet have grown rapidly and predicted to generate billions of dollars in revenue. The tutorial covers an introduction to QoS in heterogeneous networks,Internet delivery over future wireless networks, the ATM, MPLS,DiffServ, and IntServ protocols. It addresses characteristics of the Internet and its mobility features and how it could guarantee QoS using wireless IP services. It also presents concepts of routing, quality-of-service provisioning and security, baseline architecture of the inter-networking protocols and end to end traffic management issues.

Pascal LORENZ received his Ph.D. degree in 1994 from the University of Nancy, France. Between 1990 and 1995 he was research engineer at WorldFIP Europe and at Alcatel-Alsthom. Since 1995 he is associate professor at the University of Haute-Alsace. 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 conferences and the Co-Chair of ICATM'00, ICATM'01 conferences. Since 2000, he is Technical Editor of IEEE Communications Society Editorial Board. He is member of many international committees programs and he has served as guest editor foranumber of special issues, including Telecommunication System, IEEE Communications Magazine and LNCS. He has served as referee for several IEEE conferences, he has organized several technical sessions and has chaired many of them. He is the author of 60 international publications.

Tutorial 4: Pervasive and Mobile Commerce Applications

Marisa Viveros, IBM Watson Research Center

As technology continues its dramatic progress, making possible new and improved applications, we experience the creation of new paradigms and changes in the way technology impacts every day's life. Always-on connectivity, location-awareness, and environment-aware products are among those new paradigms. Smart devices, portable devices, wireless communications, and sophisticated sensors, appear to be the underlying principles of a new revolution in technology. This tutorial will explore research issues in the intersection of pervasive and mobile computing and electronic commerce. Pervasive computing deals with a broad range of information access methods enabled by mobility, wireless, small embedded systems, and broadband technologies. At the same time, electronic commerce is redefining the way business is carried out creating new business models and novel interactions with end users. The topics to be discussed are as follows:
Intended Audience
This tutorial is intended for students, developers, and researchers interested in the technical advancement of mobile applications and obtaining a global perspective of the field. Programming methodologies and standards will be covered.

Marisa Viveros is a Senior Manager of the Pervasive Computing Solutions group at IBM Thomas J Watson Research. She is responsible for the creation of emerging applications in the areas of wireless technology, pervasive devices, and their seamless integration in business environments. Examples of such work include applications in mobile commerce, using sensing technologies to bridge the gap between the digital and physical world, and multi-modal applications for knowledge workers. A common theme is enabling end users with easy-to-use computing solutions. Ms. Viveros holds an MS degree in Computer Science and a BS degree in Electrical Engineering.

For questions about the tutorials, please contact:
Tutorial Chair
Golden G. Richard III, Ph.D.
Associate Professor of Computer Science
Dept. of Computer Science
Lakefront Campus
Univ. of New Orleans
New Orleans, LA  70148

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