Jonathan Ledy

Présentation

Research Topics

Vehicular Adhoc NETworks simulations

Propagation models

Routing protocols

Cross-layering

Link-failure prediction

Thesis

My thesis deals with the optimization of communications in vehicular networks by using a realistic simulation platform. A realistic environment implies the usage of mobility models adapted to vehicles and also highly detailed physical models (channel models and digital transmission chain). The first part of our work has consisted in the design of a realistic simulation platform dedicated to VANETs (Vehicular Ad hoc NETworks). This platform has been completed by a semi-deterministic propagation model which we have designed. This model called UM-CRT has the advantage to have the same level of realism than a deterministic model while requiring much less computation time. This model has been validated by comparison with a deterministic ray tracing simulator. We then have used this platform to evaluate routing protocols. The efficiency of different ad hoc routing protocols in realistic conditions has led us to focus our study on the family of reactive protocols. From this evaluation we have selected AODV (Ad hoc On demand Distance Vector) to which we have applied a cross-layer metric in order to reduce the performance degradation caused by the realistic environment. We then have used a tuning technique with reactive protocols. Finally, we have evaluated several SISO and MIMO physical layers. This work shows that only improvements combined at different levels (physical and network) can yield a significant increase in performance.

Publications

Article dans une revue (5)

A belief function-based forecasting link breakage indicator for VANETs Soumia Bourebia,Hind Laghmara,Benoit Hilt,Frédéric Drouhin,Sébastien Bindelet al. Wireless Networks, 2019, ⟨10.1007/s11276-019-01973-0⟩ Article dans une revue hal-02068514v1
LES VEHICULES AUTONOMES ET LE RISQUE TECHNOLOGIQUE : D'OU VIENT-ON ET OU VA-T-ON ? Rodolfo Orjuela,Jonathan Ledy,Jean-Philippe Lauffenburger,Michel Basset Riseo : risques études et observations, 2018, 2018-1 Les véhicules autonomes, 1 Article dans une revue hal-01816895v1
Analysis of Ber-Based on-Demand and Link State Routing Protocols under Realistic Conditions Tiguiane Yélémou,Jonathan Ledy,Benoit Hilt,Philippe Meseure,Anne-Marie Poussard Journal of Engineering and Applied Sciences, 2017, 12 (5), pp.1469-1482 Article dans une revue hal-01525489v1
Impact of realistic simulation on the evaluation of mobile Ad-hoc routing protocols Jonathan Ledy,Benoît Hilt,Hervé Boeglen,Anne-Marie Poussard,Frédéric Drouhinet al. IEEE Transactions on Emerging Topics in Computing, 2015, 3 (3), pp.317 - 334. ⟨10.1109/TETC.2015.2405478⟩ Article dans une revue hal-01249106v1
A Semi-Deterministic ChannelModel for VANETs Simulations Jonathan Ledy,Hervé Boeglen,Anne-Marie Poussard,Benoit Hilt,Rodolphe Vauzelle International Journal of Vehicular Technology, 2012, pp.1-8. ⟨10.1155/2012/492105⟩ Article dans une revue hal-00851951v1

Communication dans un congrès (14)

Improving monocular visual odometry localization with wheel and inertial measurements Duthay Flavie,Stéphane Bazeille,Salem Ait Messaoud,Jonathan Ledy,Christophe Cudelet al. Seventeenth International Conference on Quality Control by Artificial Vision (QCAV2025), Jun 2025, Yamanashi Prefecture, France. pp.23, ⟨10.1117/12.3079737⟩ Communication dans un congrès hal-05318341v1
Localisation multimodale d'un véhicule Flavie Duthay,Stéphane Bazeille,Jonathan Ledy,Jean-Philippe Lauffenburger 2ème Congrès Annuel de la SAGIP, May 2024, Lyon, France Communication dans un congrès hal-05318277v1
From a classic Renault Twizy towards a low cost autonomous car prototype: a proof of concept Rodolfo Orjuela,Jean-Philippe Lauffenburger,Jonathan Ledy,Michel Basset,Joël Lambertet al. IFAC World Congress, Jul 2020, Berlin, Germany. pp.15161-15166, ⟨10.1016/j.ifacol.2020.12.2083⟩ Communication dans un congrès hal-03723123v1
Characterization of the impact of visual odometry drift on the control of an autonomous vehicle Stephane Bazeille,Thomas Josso-Laurain,Jonathan Ledy,Martin Rebert,Mohamad Al Assaadet al. 2020 IEEE Intelligent Vehicles Symposium (IV), Oct 2020, Las Vegas, United States. pp.2037-2043, ⟨10.1109/IV47402.2020.9304687⟩ Communication dans un congrès hal-03109474v1
Obstacle Avoidance, Path Planning and Control for Autonomous Vehicles Hind Laghmara,Mohamed Boudali,Thomas Laurain,Jonathan Ledy,Rodolfo Orjuelaet al. 2019 IEEE Intelligent Vehicles Symposium, Jun 2019, Paris, France Communication dans un congrès hal-02153577v1
Data Fusion for a Forecasting Link State Indicator in VANETs Jonathan Ledy,Frederic Drouhin,Jérémie Daniel,Michel Basset,Benoit Hiltet al. GLOBECOM 2016 - 2016 IEEE Global Communications Conference, Dec 2016, Washington, United States. pp.1-6, ⟨10.1109/GLOCOM.2016.7841717⟩ Communication dans un congrès hal-04711052v1
Performance comparison of BER-based routing protocols under realistic conditions Tiguiane Yélémou,Jonathan Ledy,Benoit Hilt,Anne-Marie Poussard,Philippe Meseure 36th IEEE Conference on Local Computer Networks, Oct 2011, Bonn, Germany. 4 p Communication dans un congrès hal-00633732v1
UM-CRT : Un modèle de canal semi-déterministe pour les VANETs Jonathan Ledy,Hervé Boeglen,Anne-Marie Poussard,Benoit Hilt,Rodolphe Vauzelle 17e Journées Nationales Micro-ondes, May 2011, Brest, France. pp.4E-14 Communication dans un congrès hal-00658995v1
UM-CRT model optimisation Slimane Bouhadi,Jonathan Ledy,Anne-Marie Poussard Journées Nationales des Communications dans les Transports Terrestres, Nov 2011, Colmar, France Communication dans un congrès hal-00658998v1
A survey of V2V channel modeling for VANET simulations Hervé Boeglen,Benoit Hilt,Pascal Lorenz,Jonathan Ledy,Anne-Marie Poussardet al. The 8th International Conference on Wireless On-demand Network Systems and Services - WONS 2011, Jan 2011, Bardonecchia, Italy Communication dans un congrès hal-00658989v1
Realistic wireless communication simulations for VANETS Rodolphe Vauzelle,Jonathan Ledy,Anne-Marie Poussard,Hervé Boeglen,Benoit Hilt Electronics, Computers and Artificial Intelligence - ECAI 2011 ­ International Conference - 4th Edition, Jun 2011, Piteşti, Romania Communication dans un congrès hal-00677391v1
A semi-deterministic channel model for VANETs simulations Jonathan Ledy,Mahamadi Savadogo,Hervé Boeglen,Anne-Marie Poussard,Benoit Hiltet al. Intelligent Transport Systems Telecommunications 2010, Nov 2010, Kyoto, Japan. pp.A Semi-Deterministic Channel Model for VANETs Simulations Communication dans un congrès hal-00658982v1
Impact d'un modèle de propagation réaliste sur un protocole de routage pour les VANETs Jonathan Ledy,Hervé Boeglen,Abdelhafid Abouaissa,Benoit Hilt,Rodolphe Vauzelle GDR ONDES et GDR ISIS, Mar 2010, Paris, France Communication dans un congrès hal-00658971v1
An Enhanced AODV Protocol for VANETs with Realistic Radio Propagation Model Validation Jonathan Ledy,Hervé Boeglen,Benoit Hilt,Hafid Abouaissa,Rodolphe Vauzelle ITST 2009, Oct 2009, Lille, France. pp.5 Communication dans un congrès hal-00476738v1

Chapitre d'ouvrage (1)

SIMPHA Experience: Contribution to new mobility solutions for people with reduced mobility in the Upper Rhine context Rodolfo Orjuela,Jonathan Ledy,Michel Basset Sustainability research in the Upper Rhine region, 2019, 2-86820-549-6 Chapitre d'ouvrage hal-02415834v1