On considère un jeu entre deux personnes Alice et Bob qui veulent communiquer via un canal. Ce canal de communication n’est pas parfait ce qui signifie que les messages que reçoit Bob contiennent du bruit. On étudie donc quels sont les moyens pour que Bob puisse retrouver le message initial d’Alice. Formellement, le but de Alice est de transmettre à Bob un message i choisit uniformément dans un...

In this paper, we describe a general purpose network simulator generation system INSPIRE (Interconnection Network Simulator with Programmable Interaction and Routing for performance Evaluation), for massively parallel processing systems. In this system, a user describes various characteristics of the target network, for instance, network resources, network topology, and routing algorithm, in a ...

In this paper we describe Pangea-LE, a message-oriented lightweight data integration engine that allows homogeneous and concurrent access to clinical information from disperse and heterogeneous data sources. The engine extracts the information and passes it to the requesting client applications in a flexible XML format. The XML response message can be formatted on demand by appropriate Extensib...

In this paper, we propose a new approach, Simple Explicit Multicast (SEM), which uses an efficient method to construct multicast trees and to deliver multicast packets to all destinations. In order to construct a multicast tree, the source encodes the list of destination addresses in a branch message. This message discovers the tree branching routers and creates a multicast routing state in eac...

The dramatic improvements in the processing rates of parallel computers are turning many compute-bound jobs into IO-bound jobs. Parallel le systems have been proposed to better match IO throughput to processing power. Many parallel le systems stripe les across numerous disks; each disk has its own controller. A striped le can be appended (or prepended) to and maintain its structure. However, a ...

This document describes the Optimized Link State Routing (OLSR) protocol for mobile ad hoc networks. The protocol is an optimization of the classical link state algorithm tailored to the requirements of a mobile wireless LAN. The key concept used in the protocol is that of multipoint relays (MPRs). MPRs are selected nodes which forward broadcast messages during the ooding process. This techniqu...