Tutorial 1: Network coding:
from basic principles to practical applications
Institut Supérieur de l’Aéronautique et de l’espace (ISAE), Toulouse, France
Network coding is a promising concept recently introduced in the late 90's by R. Ahlswede, N. Cai, S.-Y. R. Li and R. W. Yeung. The main principle is to allow intermediate nodes of a network to perform combinations of input packets in order to generate output packets instead of simply forwarding them. The main benefits of this approach are the improvements of the throughput and of the robustness.
In this tutorial, we introduce basic principles of network coding and we present the main theoretical results. Then, for each network coding application in communication networks, we describe the main achievements and open issues.
Jérôme Lacan was born in Rodez, Aveyron, France, in 1970. He received his M. E. and Ph. D. degrees in Computer Science from University Paul Sabatier, Toulouse, France in 1994 and 1997. In 1996-2000, he was assistant professor in University of Franche-Comté, France in Computer Science. In 2001, he joined the department "Mathematics, Computer Science, Automatics" (DMIA) of the "Institut Supérieur de l'Aéronautique et de l'espace" (ISAE) as assistant professor (2001-2008) then professor (since 2008). He is also a member of the laboratory TéSA and of the group OLC of the LAAS/CNRS.
His main research interests are coding theory and network protocols applied in the areas of satellite communications and peer-to-peer networks. He is currently interested in constructions and applications of erasure codes, cross-layer coding and network coding.
Tutorial 2: From pipes to networking:
what optics will bring to future communication networks
Orange Labs, Lannion, France
This talk will describe and explain the main trends of the evolution of optical networks in the coming years, and related research activities and challenges. Optics has played a key role up to now as a "big pipe" point-to-point transmission technology in core and metropolitan networks. It has been expanding for some years in access networks through FTTH, in particular in Asia, as an unavoidable technology for very high broadband access. It will also be present in future home area networks for Gbps connectivity inside the home. With the viewpoint of a telecommunication operator, the talk will show what optics will bring to the future: not only huge bandwidth, but also advanced networking concepts leading to cheaper and more energy-efficient communication networks.
Stéphane Gosselin joined France Telecom R&D at Lannion in 1993, where he first studied fast free-space optical switching systems. From 1997, he has been working on WDM networks. He led an R&D group of France Telecom on optical transport network technologies from 1999 to 2003, and was in charge of France Telecom long term research activities on optical networks from 2003 to 2006. He is now leading several prospective research projects on broadband communication systems and networks in Orange Labs. He was/is involved in several French and European (ACTS/DEMON, IST/TOPRATE, IST/NoE/e-Photon/One & BONE) projects dealing with optics, and in European Technology Platform Photonics21. He authored four international patents and about 45 national or international papers or communications. He has been a member of technical program committee of European Conference on Optical Communication since 2004.
Invited Talk: CARRIOCAS:
an Ultra-high bit rate Transmission Optical Network delivering Virtualized IT Services
Alcatel-Lucent Bell-labs, Nozay, France
Advanced computing, storage or visualization service for R\&D companies require ultra-high performance optical infrastructures to allow network operators offering connectivity services associated to these advanced IT services. The network infrastructure has to integrate dynamic control and management functions to configure automatic network services associated with the end-application services during the right time interval.
This talk develops on the main achievements of CARRIOCAS project related to the network infrastructure developments offering carrier grade connectivity services configured dynamically over a ultra-high bit rate transmission optical network for using high-performance computers associated with large-scale storage centers and visualization equipments. The CARRIOCAS network pilot offers collaborative research and development environment that is shared between several business companies. The advanced developments related to 40 Gbps optical components as well as its integration within the network equipments will be positioned with the different connected large scale IT infrastructures.
The concepts of virtualized services will be analyzed within the service management functions developed named Scheduling, Reconfiguration and Virtualization (SRV) component. The SRV manager allows Generalized Service Provider (GSP) to obtain explicit reservations of a pool of different types of resources for composing the virtualized services in which connectivity service is the central service element. The scheduling of virtualized services by SRV offer the possibility to cross-optimize the resource reservations of different infrastructures and to increase globally the utilization ratio and it further allows defining new service models for Telecom network operators.
Dominique Verchere works currently on Semantic and Autonomic Technologies within Networking and Networks research domain at Alcatel-Lucent Bell Labs France. He holds a Ph.D. degree in computer science on performance evaluation from University of Paris VI. His works has included the design and developments of advanced IP optical router controllers, data path processing, and terabit-switching fabric scheduler systems. Then his works developed on the resilience functions for optical cross-connect and carrier-grade Ethernet systems, according to IETF based on RSVP-TE and OSPF-TE extensions. Dr. Verchere has been actively contributing for several European projects including recently TBones, NOBEL1 and 2, EuroNGI and national projects. He is responsible for the Architectures and Protocols Research and Development work package of CARRIOCAS project, which is dedicated to advanced IT services delivered by ultra-high bit rate optical networks. He is Member of Alcatel-Lucent Technical Academy since 2003 and is co-chairing the ALTA French Chapter since 2006.