Damien Charlet

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With the massive arrival of wireless networks, the mobility of the terminals increases with the interconnections. New problems, such as mobile multimedia content streaming, arise with the emergence of new mobile multimedia services. In this paper, we present a mobility model adapted to the logging of mobile positioning or the tracking of mobiles. This model(More)
The massive deployment of mobile networks together with the emergence of powerful portable devices has given rise to pervasive computing environments. In such environments, mobile users may discover and access services offered in surrounding networks using Service Discovery Protocols (SDPs). However, several SDPs are currently in use, each one designed for(More)
This paper deals with broadcasting security messages in mobile ad hoc networks (MANETs). Traditional broadcasting schemes tend to focus on usually high and homogeneous neighborhood densities environments. This paper presents a broadcasting protocol that locally and dynamically adapts its strategy to the widest range of neighborhood densities. The behavior(More)
A Mobile ad hoc network (MANET) is a collection of mobile nodes communicating through wireless connections without any prior network infrastructure. In such a network the broadcasting methods are widely used for sending safety messages and routing information. To transmit a broadcast message effectively in a wide and high mobility MANET (for instance in(More)
If outdoor positioning is widely treated and quite precise, indoor or more generally in heterogeneous environment, the positioning (and also mobility prediction) requires consequent devices. The WiFi solution, easy to deploy and cheaper becomes today an alternative. Our refinement approach, which is based on, both a friis calibrated model and the referenced(More)
Nowadays, on-demand delivery of continuous media is becoming increasingly commonplace. At the same time, wireless networks are appearing everywhere in different forms, and handheld devices become more and more powerful and widespread. Nevertheless, the traditional approach used for streaming cannot scale efficiently and is not appropriate for mobile(More)
The wide deployment of mobile networks and the emergence of powerful portable devices has given core to pervasive computing. As particularly addressed by Beyond 3G (B3G) networks, the recent evolution of mobile networks introduces the convergence of wireless technologies, where several radio interfaces are to be used concurrently. Thus, B3G-aware(More)
This paper extends an elitist multi-objective evolutionary algorithm, named GAME, based on several Pareto fronts corresponding to various fitness definitions. An additional operator is defined to create an adaptive version of this algorithm, called aGAME. This new operator alternates different modes of exploration of the search space all through an aGAME(More)
This paper proposes a new multi-objective genetic algorithm, called GAME, to solve constrained optimization problems. GAME uses an elitist archive, but it ranks the population in several Pareto fronts. Then, three types of fitness assignment methods are defined: the fitness of individuals depends on the front they belong to. The crowding distance is also(More)