Tutorials
Sunday, January 8, 2005
Tutorial I - canceled
8:00am - 12:00nn
Presenter: Professor Danny H.K. Tsang
Title: Content Delivery and P2P Networks
The goal of this tutorial is to introduce to the audience the basic
principles behind content delivery networks (CDN) peer to peer (P2P)
networks that have gained widespread popularity. The application of CDN
began with speeding up the delivery of web objects while that of P2P
networks initially targeted for file sharing. Both have now been extended
to include real-time video/audio streaming and video on demand (VoD). The
tutorial will also discuss about this latest development.
Tutorial II - canceled
8:00am - 12:00nn
Presenter: Dr. Dorgham Sisalem, Sven Ehlert
Title: Deploying VoIP Services with SIP
In the last two years, VoIP has moved from hype to reality.
While initial interest has come form large enterprises wishing to
reduce their communication costs, consumer market has
taken the lead now. VoIP services are being increasingly offered to
end customers in the form of a low cost and easy to use service.
In this tutorial we will look at the basic of the protocols on which
VoIP services are built, namely the session initiation protocol (SIP).
Then VoIP service architectures as well as deployment issues such as
NAT traversal, security, denial of service and management will be
discussed. Finally, next advances in SIP and its enhancement for next
generation networks will be presented.
Tutorial III - canceled
8:00am - 12:00nn
Presenter: Prof. Giovanni E. Corazza
Title: Mobile Broadcasting
Mobile broadcasting (MB), intended as the delivery of multimedia content
to mobile terminals, is today an extremely hot technical issue and market
opportunity for both cellular operators and traditional broadcasters,
investing both satellite and terrestrial communication networks
communities. MB applications target horizontal mass-markets, and are
expected to have a very important impact in terms of diffusion of
value-added services. Several standards and technologies are being
developed to take full advantage of this ripe opportunity, among which:
MBMS within 3GPP, DVB-H in the DVB forum, S-DMB within the satellite
community and the ETSI S-UMTS group. All of these standards pursue the
identification of the optimum provision mechanism for multimedia
broadcast services, while preserving compliance with existing system
architectures and air interfaces. However, they all have advantages and
disadvantages which render their mutual comparison a non-trivial task.
The tutorial aims at describing the various provision mechanisms for MB
services, and addresses a comparison between the alternative competing
solutions.
Tutorial IV
1:00 - 5:30pm
Presenter: Prof. Ahmet M. Eskicioglu
Title: Digital rights management of multimedia data: solutions challenges, and future needs
A digital home network is a cluster of digital audio/visual (A/V) devices.
Copyrighted digital multimedia content may be delivered to the consumers
from a number of sources including the Internet, and satellite,
terrestrial or cable television systems. It may also be made available as
prepackaged media at retail stores. Before releasing their content for
distribution, the content owners may require protection by specifying
certain access conditions and digital rights. Recently, two fundamental
groups of technologies, encryption and watermarking, have been identified
for protecting copyrighted multimedia content in digital distribution
networks. Three major industries have a vital interest in this problem:
The motion picture industry, the consumer electronics (CE) industry, and
the information technology (IT) industry. This tutorial is an overview of
the work done for protecting the content owners investment in
intellectual property.
Tutorial V
1:00 - 5:30pm
Presenter: Dr. Swarup Acharya, Dr. Anurag Srivastava
Title: IPTV Technologies and Deployment Challenges
IPTV, or, Television over IP, is generating huge interest in the telecom
industry lately. Telecom service providers (Telcos) view IPTV as a ticket
to compete against the Cable industry by offering television services
over Fiber/DSL lines. By offering video over their access infrastructure,
Telcos hope to match the voice, video and data (“triple-play”) offering
of Cable providers. However, unlike Cable television (CATV) systems that
are typically analog transmissions on a broadcast medium, IPTV
architectures deliver digital television using IP-multicast over
point-to-point hybrid Fiber/DSL infrastructure. Unlike the more mature
CATV infrastructure, IPTV leverages the most recent advances in
networking and video compression technologies that while enabling more
efficient networks, is also causing Telcos growing pains in field
deployments.
In this tutorial, we will provide an overview of the network architectures
and technologies that comprise an end-to-end IPTV system. As appropriate,
we will highlight the various tradeoffs (e.g., channel change latency
vis-ŕ-vis compression technology) and compare it with the CATV approach.
We will focus on hardware and software technologies from the service
provider core to the home --- multicast transport, DSL technologies, MPEG
standards and home-networking requirements such as the IPTV set-top box.
We will also review the regulatory issues faced by Telcos relating to
unbundling of their access infrastructure and statewide franchisee
agreements. Since IPTV may not only be limited to Fiber/DSL, we briefly
highlight competitive threats from emerging technologies such as
Broadband over Power Lines. Finally, we describe the various lifestyle
services such as “CallerId-on-TV” and converged voice-video applications
that provides IPTV its cutting-edge differentiation.
Tutorial VI
1:00 - 5:30pm
Presenter: Prof. Torsten Braun
Title: Wireless Sensor Networks: A Systems View
The tutorial addresses systems issues in wireless sensor networks. After
an introduction to into general features of sensor nodes such as energy
consumption issues we study the requirements on sensor networks from
various applications. Several research and prototype sensor hardware
platforms have been developed during the last years. We discuss several
classification schemes and examples of those classes. Special operating
systems for sensor nodes need to be developed. Some of them borrow
mechanisms from traditional operating systems; others follow a
component-based approach. On top of operating systems middleware is
required to support sensor node programmability. Concepts such as virtual
machines, agents, and database models will be presented. Finally, we
investigate how time synchronization and localization of sensor nodes can
be supported.
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