Publications de Christian Gaumier

Multi-objective optimization of regenerator placement using Constraint Programming

In translucent optical networks, connections bypass most intermediate nodes transparently. However, their signal quality is affected by the traveled distance and/or the bypass operations. Hence, they might require optical-electrical-optical conversions at ...

2011

Feedback Based Load Balancing, Deflection Routing and Admission Control in OBS Networks

Christian Gaumier, Sébastien Rumley

Academy Publisher2010

Adaptive Burst Admission and Forwarding in OBS Networks

Christian Gaumier, Sébastien Rumley

This paper addresses the problem of controlling the performance of optical burst switching (OBS) networks in presence of non-stationary traffic demands. We propose a joint burst admission control and forwarding mechanism that operates in core nodes. This m ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Cost Aware Design of Translucent WDM Transport Networks

Christian Gaumier, Sébastien Rumley

Fully-transparent DWDM networks working at 10 Gb/s or more have limited reach. At these high rates, only translucent networks able to fully regenerate the signal when needed can be used to implement long haul transport networks. Since signal regeneration a ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Flexible simulators for OBS network architectures

Christian Gaumier, Sébastien Rumley

Since the OBS paradigm has become a potential candidate to cope with the needs of the future all optical networks, it has really caught the attention from both academia and industry worldwide. In this direction, OBS networks have been investigated under ma ...

IEEE2008

Distributed RWA tools via Web Services

Christian Gaumier, Sébastien Rumley

Several computer tools addressing the routing and wavelength assignment (RWA) problem are available today within the research community. However, these tools have low flexibility and are difficult to use for remote or casual users. This paper shows how to ...

IEEE2008

Practical Approaches for Software Components Integration in Telecommunications

Christian Gaumier, Sébastien Rumley

Nowadays, advances in telecommunication network design and performance analysis often rely on dedicated software tools. Unfortunately, developing new tools is a very time and resources consuming activity. To rationalise development costs, existing applicat ...

2008

Distributed and Component Oriented Tools for Communication Networks Using Web Services

Christian Gaumier, Sébastien Rumley, Christophe Trefois

Modern communication networks are reaching a high level of complexity. As their global dimensioning and performance evaluation are very hard tasks, a multi-layer approach is generally applied to divide them in smaller problems easier to tackle. Within this ...

ARGESIM2007

Modeling and performance analysis of IP access interface in optical transmission networks with packet switching

Christian Gaumier

The article analyzes the influence of the Internet Protocol (IP) access interface on the packet loss probability and delay times in the optical packet switched network. The network and node model have been proposed, and the structure of the IP access inter ...

2006

New optical star LAN demonstrator based on FDM with an adapted multichannel Ethernet protocol

Philippe Robert, Christian Gaumier, Caroline Brisson, Daniel Rodellar Gomez

This paper presents a new physical layer demonstrator for Optical Local Area Network. It offers a large total capacity to a large number of connected nodes without requiring optical amplifiers and achieves high modularity and scalability. A new multichanne ...

1998

New multichannel Ethernet protocol for passive optical star local area networks using coherent transmission

Philippe Robert, Christian Gaumier, Caroline Brisson, Hector Garcia

A new optical local area network that combines dense Wavelength Division Multiplexing (WDM) techniques and coherent transmission benefits is presented. A new multichannel protocol is specified based on Ethernet, using WDM to carry multiple channels on a si ...

1998

Computer-aided design tools for high-capacity fiber optics communication systems and networks

Christian Gaumier

EPFL1995

Survivable European optical transport network: capacity evaluation

Christian Gaumier

The feasibility of a survivable all-optical transport network over standard single-mode fibre between eight major European cities is investigated. The chosen topology is intended to ensure survivability after a link or a node failure. The maximum transmiss ...

1995