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Tutorials - 2008-09-28
2008-09-28
09:00-12:30
T1: From opacity to transparency via translucent optical Networks,Maurice Gagnaire, ENST Paris, France
Abstract:
In existing opaque WDM networks, each optical channel is regenerated along its path from source to destination at each intermediate node. Address-lookup carried out in switching nodes is indeed achievable only in the electrical domain. The emergence of optical amplifiers in the mid 1990s has enabled to reduce considerably the number ofregeneration points in opaque networks. At the end of the same decade, the feasibility of various types of optical switches has been demonstrated. Four techniques are considered in this matter: optical cross-connects (OXC), optical circuit-switches (OCS), optical packet switches (OPS) and optical burst switches (OBS). The OXC technique assumes a manual configuration of the switching fabric for long term traffic demands. The OCS, OPS and OBS techniques are much more complex to develop since they require a signaling channel to reconfigure automatically the switching fabric. All these advances have enabled to consider the development of a new generation of optical networks in which ideally, the optical signal associated to each traffic demand is routed without any opto-electronic conversion. Such networks are qualified by transparent.
T1
Biography:
Maurice Gagnaire is Professor at the Computer Science and Networks Department of the Ecole Nationale Supérieure des Télécommunications (ENST) in Paris-France. His research activities are focused on core and access WDM networks planning and traffic engineering in the context of multi-layer networks. He is the author or co-author of about 60 technical papers in IEEE or IFIP conferences and journals. He has been co-guest editor of a special issue of the Computer Networks journal titled “Optical networks for new generation Internet and data communications systems” (Elsevier, 2000) and of a special issue of the Proceedings of the IEEE titled “Evolution of Internet technologies” (IEEE Press, September 2004). He is author of a book on access networks titled “Broadband local loops for high speed Internet access” (Artech House-USA, 2003). A new book written with two of his former PhD students titled “From network planning to traffic engineering in translucent optical WDM networks” will be edited in 2007 by Springer-USA. He is author and co-author of two books in French, on xDSL access systems. He has been designated by the French Ministry of Research as the French representative to the European COST 291 action “Optical Digital Networks” in 2004. He has served as an expert in the field of access networks for the Flemish Government of Belgium (1998) and in the field of optical networks for the National Science Foundation (NSF) of the USA (2001, 2004). He has been chair of the Advanced Technologies & Protocols for Optical Networks Symposium, within the IEEE Globecom conference in December 2006. He is in the steering committee of the IFIP ONDM conference. He is graduated from Institut National des Telecommunications in Evry and Pierre et Marie Curie University in Paris. He obtained his PhD from ENST in Paris-France (1992) and his Habilitation degree from the University of Versailles-France (1999). He is a member of the IFIP WG 6.10 on Photonic Networking.
T2: Efficiency of Peer-to-Peer Networks and Alternative Overlays for Content Delivery and Internet Service Provisioning,Gerhard Hasslinger, T-Systems, Germany
Abstract:
T2/1,
T2/2
Among the basic features of peer-to-peer (P2P) networking applications are their ability
• to exploit vacant resources (data, storage, computation power, bandwidth) distributed over user equipment,
• to adapt to varying demands with scalability for huge communities, including dynamic flash crowds,
• to include replication of data for predefined requirements in self-organizing schemes,
• to build and manage overlays without or at a minimum of own network and server infrastructure and costs.
In this way, P2P overlays facilitate new Internet services to be launched globally, in addition to well-known and popular P2P applications for file-sharing, content distribution, voice over IP and pod-/broadcasting of radio and TV. In the present phase, well established P2P approaches compete with content delivery networks (CDN) and alternative overlays in the deployment of future Internet services. Together with the efficiency of the distribution scheme, the user acceptance as well as the involvement of content, service and network providers will decide on the preferable schemes for support of Internet applications. While P2P solutions for file sharing and voice over IP are stabilizing in popularity, solutions for video streaming and IP TV as well as business applications via P2P are still under a challenging development.
The tutorial will address the current development in P2P and concurrent overlays for service provisioning from the view of Internet service and network providers. It is structured into four main parts:
• Principles and efficiency of P2P networking for different Internet applications
• Measurement statistics on the Internet traffic mix and growth: Impact on network planning and management
• Cross layer issues: Infrastructure for broadband Internet access and overlay networks
• Established and evolving P2P services: Economic aspects and competition on future markets
Biography:
Gerhard Haßlinger received his doctoral degree and postdoctoral lecture qualification from Darmstadt University of Technology, Germany, where he was with the computer science department from 1984 – 1996. In 1996 he joined Deutsche Telekom / T-Systems starting as a consultant on reliable and secure communication for enterprises operating global networks. Since 1999 he works on the design of the Internet platform for integration and support of current and new Internet services, including traffic measurement and engineering. He is a delegate of Deutsche Telekom in the IETF and ETSI standardization in the area of fixed mobile convergence. In addition to the daily work from the view of an Internet service provider, he is continuing lectures at Darmstadt University and participating or heading research projects for the German research council, the European Union and Eurescom. In 2005 he headed the Eurescom project on "The impact of peer-to-peer networking on network operators and ISPs". He is involved in the QuaP2P and SmoothIT projects related to P2P overlays at Darmstadt University. He is on the technical board of more than half a dozen telecommunication conferences including IEEE Peer-to-peer’08, IWQoS´08 and NGI’08.
T3: IPv6 training,János Mohácsi, NIIF, Hungary
Abstract:
T3
The tutorial can provide training and practical information to those responsible for the installation, operation and maintenance of the networks, and also inform strategists/decision makers of the benefits of deploying IPv6.
Biography:
János Mohácsi graduated as a computer engineer from the Technical University of Budapest Faculty of Electrical Engineering in 1993. Then he worked as an assistant researcher and network and security manager at the Department of Control Engineering and Information Technology, Technical University of Budapest. Among several other projects, he has served as the leader of the TIPSTER6 IPv6 research program in Hungary. Later he joined DANTE, Cambridge, where he was working on EU FP6 GÉANT, the gigabit European academic network development project, especially in the fields of optical test and development, as well as in the areas of GÉANT multicast and monitoring services. In parallel, he has been active in further IPv6 related developments and he also played a major role in the WP1 activities (building and operating the IPv6 network) of the EU FP6 6NET project. He played important role as well as in development of curriculum of EU FP6 6DISS IPv6 support actions project, he actively participated in disseminating IPv6, network management and security knowledge. He served recently as a leader of a Hungarian campus IPv6 deployment project aiming of IPv6 development of campus and enterprise environment. Currently he is working for NIIF/HUNGARNET, Budapest as Head of Network Engineering and Development.
Mr. Mohácsi is member of the IETF IPv6 operation working group and co-author of the RFC4890 “Recommendations for Filtering ICMPv6 Messages in Firewalls”.
14:00-17:30
T4: Fiber-to-the-X: Technologies & Economics,Mohamed El-Sayed, Alcatel-Lucent, USA
Abstract:
T4
A number of developments over the past few years have changed the requirements for broadband access and the economics of broadband access technologies and fiber loops in particular. These changes include the introduction of IPTV, the rapid increase in Internet usage and emerging Internet applications, wireless broadband and the improving economics of fiber deployment. There are multiple options at the disposal of the operator to provide wireline broadband. They include ADSL2+/VDSL, EPON, GPON, Point-to-Point Ethernet and Active Ethernet However, a large number of parameters impact the relative economics of these technologies to the point where sometimes it is not intuitively clear where each technology proves in.
The intent of this tutorial is to provide the audience with a good understanding of the FTTX technologies, their limitations and the factors that impact their economics.
Even though the tutorial is focused on FTTX, we will also briefly address wireless technologies for broadband access including UMTS/HSDPA, WiMax, CDMA/EVDO,.etc which might be more suitable for deployment in certain cases. We also intend to cover the current status of Next Gen PON alternatives such as WDM PON, and 10G PON.
The participants will be exposed to a complete analysis of the various technologies, their economics and how operators will decide which technology to deploy under what conditions.
Biography:
Mohamed El-Sayed is the manager of the Advanced Network Modeling & Optimization group at Bell Labs Research, Alcatel-Lucent, in Murray Hill, New Jersey, USA. He has over 25 years of experience in the area of Telecommunications R&D. He started his career in Bell Labs in the early eighties where he was involved in the architecture and design of packet switching systems and networks. He subsequently contributed to many areas in data communication including, TCP/IP, Satellite Communication, Virtual Private Networks, MPLS, VoIP, etc. He took on responsibilities in a variety of leadership roles in Research, Network Architecture, Systems Engineering, Network Design & Optimization as well as Network Performance.
Dr El-Sayed’s current interests include architecture and design of 3G & 4G Wireless networks, IP Multimedia Subsystem (IMS) and Applications, FTTN/FTTH, Intelligent Optical Networks, IPTV and Next Gen Transport networks based on Carrier-Grade Ethernet/VPLS and MPLS. He has consulted with executives of many Service Providers in N. America, Europe, Asia and the Middle East, helping them with a variety of questions related to network evolution, technology introduction and network design and optimization. He has published many papers in professional journals and conferences and was a recipient of many Bell Labs, Alcatel-Lucent and AT&T awards.
Dr El-Sayed holds a Ph.D. in Systems Engineering in addition to a B.Sc. and an M. Sc. in Electrical Engineering.
T5: Focusing the study on wireless multihop networks,Josep Paradells, Carles Gomez, Technical University of Catalonia (UPC), Spain
Abstract:
T5
Wireless mesh networks, mobile ad-hoc networks and wireless sensor networks are some of the names related to a more general concept that can be described as wireless multihop networks. Recently, the research community has devoted a lot of attention to this topic since now it may become applied in a general manner leaving the niche market it has had since its origins. Sometimes, the research community is overoptimistic about the application of this technology, and in fact, in the technology itself. This enthusiasm brings to unrealistic research scenarios and, so, to unrealistic models and conclusions. The topic of the tutorial is motivated for this feeling of lack of connection between reality and theory in the study of this kind of networks. The main ideas presented are based on practical experiences in using this technology and in some well known papers that cover the same issues. The tutorial starts with an introduction to some applications and the technologies available. From this point, different key aspects such as mobility, range, interference, metrics, routing or power consumption are presented considering different degrees of complexity and realism. The tutorial presents measurements from real systems (e.g. WLAN mesh networks and wireless sensor networks) related to range, packet losses, reconfiguration times and the effects of mobility. The tutorial is intended to focus the research in the area, avoiding too general scenarios that provide no clear solutions and to provide some reference behaviours and values to validate simulation or theoretical results.
Biography:
Josep Paradells Aspas is professor at the Technical University of Catalonia. He has been working in wireless communication and in particular in providing efficient Internet connectivity. As a result of the activity, he has authored or coauthored a significant number of publications and he has led several national and international projects. Some of the projects are related with multihop networks, in particular: two projects involving Vodafone and the i2CAT Foundation were developed in the area of wireless mesh networks, one project related to the municipality management using sensors networks and a couple more related to assistance and health care using sensor networks also. As teaching activity Josep Paradells has more than 15 years giving regular courses, post graduate courses and customized courses to attend specific needs. He teaches seminars regularly in Colombia, Venezuela and Peru.
Carles Gomez is assistant professor at the Technical University of Catalonia. He has been working in wireless communication and in particular in providing efficient Internet connectivity. As a result of the activity, he has authored or coauthored a significant number of publications. He has participated in several national and international projects. Some of the projects are related with wireless multihop networks, in particular: two projects involving Vodafone and the i2CAT Foundation were developed in the area of mesh networks. Carles Gomez has been teaching regular courses for over 6 years.
T6: End to end IPTV Design and Implementation - How to avoid pitfalls?,Rajiv Chaudhuri, Ericsson, Sweden
Abstract:
T6
Choosing the Right IP TV Business Model
- Examine various IP TV business models in an operator context.
- Is IP TV only suited to the telco world?
- How can IP TV be differentiated from Internet TV? Is there a business model where both services can be offered?
- What are the ways to optimize CAPEX and OPEX in delivering IP TV services?
- Could IMS be a viable proposition, where CAPEX is used as a lever to lower OPEX?
- What are the key success factors in delivering IP TV services?
Designing a Multi-Services Network for IP TV Delivery
- What are the key service elements in an IP TV system?
- Why do certain service components have to be network-aware to deliver the required network performance and optimization?
- What is a multi-services network? What are the key capabilities of this network to meet IP TV service requirements?
- What are the key network challenges to delivering IP TV service of acceptable quality and performance?
Ensuring That High-Quality IP TV is Delivered in a Multi-Services Network Environment
- Assess video streaming and video-on-demand application performance in the multi-services network environment.
- How can operators maintain video Quality of Experience (QoE) end-to-end?
- What are the high availability and resiliency considerations to guarantee SLAs for IP TV service delivery?
- Are certain layer 2 and layer 3 technologies better suited to the transport of video streaming traffic?
- How can video quality be measured end-to-end before and during the service deployments?
- What part or parts of the multi-services network can be shared between mobile and fixed access for video backhaul? Why?
Managing Migration From "Best Effort" Broadband to an IP TV Multi-Services Network
- What are the key strategies for operators to manage service migration to a multi-services network?
- What are the legal and regulatory issues that should be addressed prior to commencing service migration?
- How to plan for incremental service rollout and increasing end-user volumes without affecting existing services?
- What are the long-term network operation costs associated with network and services technologies?
- How can operations and maintenance costs be reduced over a period of time with prudent service and technology selection?
What are the Lessons Learned From the IP TV Work Around the World? An Ericsson Perspective.
- What do consumers want from their TV services?
- How Ericsson IP TV services are aligned with consumer service expectations?
- What are the ten most important deployment challenges an operator should be aware of?
- What are possible solutions and recommendations?
Biography:
He has had over a decade of extensive operator experience, providing leadership in all aspects of architecture design, service delivery, implementation, and platform life-cycle management of various network edge and access technologies for broadband networks. In his architecture role, Rajiv was also responsible for determining core network impacts in introducing IP TV services for both multicast and video-on-demand type applications. One of his key achievements at Telstra was to deliver the architecture and design for DSL broadband catering to high service growth, while remaining focused on the delivery of future value-added applications in a cost-effective and timely fashion. He was also involved in a technology leadership role in developing fixed and mobile convergence strategies, providing strategic due diligence for an IP TV investment project, and contributing to the access-agnostic ASP network design. Being a frequent speaker at various IP TV world forum conferences, Rajiv is considered to be a leading expert in broadband technologies and related network transformation strategy development.
Rajiv holds a B-Tech (Hons) in Electronics from the Indian Institute of Technology, Kharagpur, a Master Degree in Telecom Engineering from the University of Technology – Sydney, and more recently a MBA degree (with Dean’s Merit) from the Sydney Graduate School of Management.
