Dominique Dhoutaut's research while affiliated with Institut FEMTO-ST and other places

Publications (35)

Chapter
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The routing protocol plays a key role in allowing packets to reach their intended destination. We are interested in wireless nanonetworks (WNNs), which totally differ from traditional wireless networks in terms of node density and size, routing protocol used, and hardware limitations. This paper presents an enhanced retransmission algorithm used by...
Article
Full-text available
Nowadays, the heterogeneous wireless nano-network topology becomes a need for diverse applications based on heterogeneous networks composed of regions of different node densities. In Wireless Nano-networks (WNNs), nodes are of nano-metric size and can be potentially dense in terms of neighbouring nodes. Nano-nodes have limited resources in terms of...
Conference Paper
Full-text available
In any network, routing and congestion control protocols play a key role, as they allow packets to reach the intended destination. We are interested in wireless nanonetworks (WNNs), which are networks whose nodes have a nanometric size and can be potentially dense in terms of neighboring nodes. The nodes have limited processing capabilities and pow...
Conference Paper
Pulse-based wireless nanonetworks differ in many ways from traditional wireless networks. This paper investigates congestion in multi hop nanonetworks, which do not behave as usual due to the specifics of the channel and the physical layer. Most protocols and network models assume that each node can listen to all of the traffic sent on their channe...
Conference Paper
Electromagnetic nanonetworks form an exciting new field of investigation. The frequency band and the channel access methods impose peculiar constraints on upper layer protocols. Given that research is impaired by the unavailability of ready to use hardware, simulation tools are needed to evaluate protocols and applications. This paper presents BitS...
Conference Paper
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This material is based on work in progress. With the advance of electronic and Micro Electro Mechani- cals Systems (MEMS), swarm of communicating and collab- orating micro-robots became very attractive. In this paper, we revisit Vouivre, a nano-wireless simulation library we pre- viously developed. Using the specificities of the Terahertz radio cha...
Article
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Modular robots need networking for coordination, and it is particularly true for MEMS (Microelectromechanical systems) microrobots. A promising communication technology is nanowireless networking which could be integrated directly into MEMS microrobots—in our case, the catoms of the Claytronics project. We have designed Vouivre, a wireless simulato...
Article
The Claytronics project has produced interesting hardware components like cylindric micro-robots called catoms and software models to enable the concept of programmable matter. One application is the use of several catoms linked together so that they can “walk”. These walkers can explore an area and thanks to electromagnetic wireless nano-networks,...
Article
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The emergence of nano-electromagnetic communications based on graphene nano-antennas has opened new perspectives for communications between small things, referred as to the internet of micro-things or even as the internet of nano-things. However, these antennas make use of the Terahertz band which raises many problems like the absorption of entire...
Conference Paper
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Nanowireless electro-magnetic communication networks in the Terahertz band have raised interest in the networking community these very last years. However, if detailed studies have been published on analytical modelling of these networks, no simulation have been run to study in detail the characteristics of the transmission medium. We have designed...
Conference Paper
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The rise of the Internet of Things raises many challenges among which is the ability to efficiently simulate a real 3D environment with intelligent objects able to sense and act. Furthermore, the apparition of micro-objects able to communicate forces such as a simulator to scale up in the number of simulated nodes. In this paper, we report the prog...
Conference Paper
Full-text available
Modular robots needs networking for coordination and it is particularly true for MEMS micro robots. A promising communication technology is nanowireless networking which could be integrated directly into MEMS micro robots, in our case, the catoms of the Claytronics project. A first step towards this objective is to design a wireless simulator able...
Conference Paper
Full-text available
Over the last decades, research on microelectromechanical systems (MEMS) has focused on the engineering process which has led to major advances. Future challenges will consist in adding embedded intelligence to MEMS systems to obtain distributed intelligent MEMS. One intrinsic characteristic of MEMS is their ability to be mass-produced. This, howev...
Article
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 instan...
Conference Paper
Full-text available
This paper deals with broadcasting warning / emergency messages in mobile ad hoc networks. 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 neighborhood densities. The behavior of the...
Article
Full-text available
One major yet unsolved problem in wired-cum-wireless networks is the classification of losses, which can be due either to wireless temporary interferences or to network congestion. The transport protocol response to losses has to be different for these two cases. If the transmission uses existing protocols like TCP, the losses will always be classi...
Conference Paper
Full-text available
Broadcasting efficiently in a Vehicular Ad hoc Network (VANET) is a hard task to achieve. An efficient communication algorithm must take into account several aspects such as the neighboring density, the size and shape of the network, the use of the channel, the priority level of the message. Some studies [6, 12, 13] have proposed new solutions of b...
Conference Paper
Vehicular ad hoc networks use new protocols to enable security, services and other inventive applications to be run onboard many types of vehicles. In their design phase, those protocols and applications need to be extensively simulated but most of the work in the simulator field concentrates on the medium access and higher layer protocols. In this...
Conference Paper
Ad hoc networks heavily rely on simulations to develop and test new protocols or applications. Impact of radio propagation models is often neglected. Simulated losses consequently exhibit relatively simple behaviors whereas they are in reality tied to obstacles, mobility and external interference sources. Moreover, the way losses do appear in multi...
Conference Paper
Vehicular ad hoc networks use new protocols to enable security, services and other inventive applications to be run onboard many types of vehicles. In their design phase, those protocols and applications need to be extensively simulated but most of the work in the simulator field concentrates on the medium access and higher layer protocols. In this...
Article
Although 802.11 is initially designed for infrastructure based networks, the Distributed Coordination Function (DCF) provided in 802.11 allows mobiles to access the radio medium without the need of a base station. Thus, studies in wireless multi-hops networks, also called ad hoc networks often rely on the use of the IEEE 802.11 standard for the phy...
Conference Paper
In this paper, we experiment different ad hoc configurations that have been pointed out in the literature for presenting some performance problems with IEEE 802.11 MAC protocol. We focus on fairness issues and show that some problems identified by simulation are real and should be considered while others are softened and some are even nonexistent d...
Conference Paper
We experiment the rate offered by 802.11 on a multi-hops configuration constituted of a chain of mobiles. We show that the rate achieved on a four-hops chain is around 200 kb/s with wireless cards at 2 Mb/s and is very unstable. We also compare our experimental results to simulation results.
Article
Most of the studies in ad hoc networks assume that 802.11 is the used protocol on low layers. For a couple of years, some studies have extracted different performance issues with 802.11 in ad hoc networks. These problems result in a great unfairness in the long and the short term and in an overall performance loss. Most of these studies are based o...
Article
The real experiments in ad hoc networks study metrics that can be obtained with local monitoring on the machines. No global and full visualization of the experiments is proposed. However such a visualization can be very useful and can help in a sharp evaluation of the tested protocols. Setting this type of visualization requires a synchronization o...
Article
Ad hoc networks are wireless and mobile networks without any fixed infrastructure. Researches in ad hoc networks field have reached a stage where experiments have become necessary. Most of the works in this area concern the design of protocols and their evaluation with theoretical analysis or with simulations. But the evaluation by simulations is n...
Article
For commercial availability reasons, most actual multi-hops ad-hoc simulations and test-beds are based on IEEE 802.11 standard [1] and its medium access method CSMA/CA. But this standard has not been designed for that kind of network and presents serious flaws in this context. In this paper, we shall try to highlight problems that can appear in the...
Article
Les réseaux ad hoc constitués de mobiles ne s'appuient sur aucune infrastructure fixe et s'auto-organisent au gré des mouvements. Dans ce domaine de recherche récent, la majeure partie de l'activité est tournée vers le routage. De part sa disponibilité commerciale et sa facilité d'utilisation, la norme IEEE 802.11(Wi-Fi) est en général choisie comm...
Article
Résumé—Cet article présente une plateforme évolutive pour la simulation et l'émulation de réseau Wi. Cet outil intermédiaire, que nous avons appelé EmuVanet, fait le lien entre réalité et simulation, grâce à l'utilisation de dispositifs de communications sans-l réels au sein d'un outil d'émulation de réseau, dans le but d'obtenir un ensemble de c...

Citations

... To the best of our knowledge there has been no research in the literature on customizing a method to ensure that the packet reaches a sleeping destination node. For that reason, a retransmission algorithm was already proposed [5] in combination with the sleeping mechanism. The aim of this algorithm is to increase the destination node's chances of receiving the packet if it is asleep when the packet reaches the destination zone. ...
... In our proposed fine-grained sleeping mechanism [10], all the nodes have the same awake-sleep cycle, equal to T s . Inside the cycle, all the nodes have the same awake duration (or percentage of T s ), but the beginning of the awake interval is different for each node and is randomly determined. ...
... Linear programming model-based energyaware network topologies can be adopted [227]. • Routing: Since the devices have limited memory, nanosensors might not be able to store protocol code and thus will be incapable of calculating routes to a destination node [122]. This limitation extends to cooperation between devices [28]. ...
... Hence, they can be used for data dissemination in nanonetworks [12]. One of the most important defects they have is the die-out problem [14]. ...
... For additional information about the density estimator algorithm, refer to [15]. ...
... We use BitSimulator 2 [4] to evaluate our proposed ideas. BitSimulator allows to simulate ultra-dense nanonetworks using TS-OOK modulation. ...
... There are several tools for simulating nano-networks such as Vouivre [31], BitSimulator [32] and TeraSim [33]. The most popular simulator is NanoSim [19,20], which is an event-based NS-3 simulator for modeling electromagnetic nano-network communications. ...
... We started our study of this phenomenon by a second series of simulation, objective of which is to determine the ray of the zone of interference characterizing every node of network. In effect an experimental study [12] was led in this sense. Results concluded that in free space the zone of interference is nearly double the zone of communication. ...
... Vouivre [13] est une bibliothèque de simulation de nanoréseaux développée dans notré equipe et paru en 2015. Elle peutégalementêtre utilisée en "standalone", c'est-à-dire comme un simulateur standard.À cause de l'absorption moléculaire, le canal produit du bruit quand il est excité, c'est-à-dire quand des bits "1" sont envoyés [31]. ...
... The simulated world of DPRSim manifests an environment of catoms and its characteristics. In this environment, every catom owns a mailbox manager with many mailboxes received from every other catoms [8]. DPRSim message unit is designed in adherence with the feature of catoms and it does not have a catom recipient address [8]. ...