- My research mission is to improve performances and quality of service of wireless ad hoc/mesh/sensor networks. In these fields a number of techniques and algorithms are introduced.
- My research interests are pragmatic. I am interested in any technique or method that supports my research mission, including but not limited to: energy consumption and network lifetime optimization, mobile communications, resource allocation, design and performance evaluation of networks and systems.
I am/was involved with the following research efforts:
- TERRA FORMA [2022-2032]: retained as PIA3 EQUIPEX+, description comming soon.
- VILAGIL/autOCampus [2020-2024]: retained by the government as part of the "Territories of Innovation" call for projects, VILAGIL aims to improve the conditions for the population mobility through the urban area of Toulouse. The objective is to promote the emergence of new forms of mobility and sustainable economic development in order to improve the living conditions of residents.
autOCampus is one of the VILAGIL actions and aims to set up an experimentation field for connected and / or autonomous vehicles on the campus of the University of Toulouse 3 - Paul Sabatier.
- eConect [2020-2022]: eConect is a (FEDER/Occitanie province funded) project that began in early 2020, with the objective to develop a communication infrastructure allowing the remote monitoring of autonomous, connected and versatile systems to measure the responses of bio-indicator organisms to chemical contamination, habitat degradation and global warming.
- PHC Tassili RESCOUSSE [2020-2022]: The RESCOUSSE project aims to design and deploy large-scale networks of LoRa-enabled electronic sentinels.
- neOCampus [2014 - ...]: Using sensor networks and mobile applications to improve everyday comfort for the university community while
reducing the ecological footprint of buildings and reducing operating costs (fluid, water, electricity ...).
- MIH [2009-2010]: Media Independent Handover in satellite context.
-- with Riadh Dhaou (ENSEEIHT-INPT)
- CAPITOLE: Communications for Aeronautical Safety: Information, Traffic and Weather by Satellite.
-- with Ponia Pech (TESA)
- CAPTEURS: Wireless Sensor Networks solutions for cold chain monitoring
-- with André-Luc Beylot & Riadh Dhaou (ENSEEIHT-INPT)
Title: Energy conservation techniques for wireless sensor networks
Technological advances during the last few years allowed the development of new and cheap sensors equiped with wireless communication which can be configured to form autonomous networks. The application areas for wireless sensor networks (WSN) are various: home automations, health care services, military domain, and environment monitoring. The imposed constraints are limited capacity of processing, storage, and especially energy. In addition, implementing WSN solutions is highly open and requires that the infrastructure, the mechanisms and the protocols should be completely designed based on each specific application.In this thesis, we first focused on small networks. We designed « Placide », a protocol stack solution for cold chain monitoring proposed within the ANR-CAPTEURS project. The first originality of this solution is based on the absence of infrastructure and base stations. « Placide » is composed of self-organizing and energy-efficient protocols based on a virtual ring construction between nodes. The second topic is devoted to an experimental study on Link Quality Indicator (LQI). There are two main objectives. Firstly, we want to endorse our precise assumptions of the first part of the work. Secondly, our poposed link quality based protocols and algorithms willbe described. We focused on LQI variations according to distance between nodes and transmission power.Thereafter, the impact of LQI on the network topology has been studied. Feedbacks are important to understand which factors affect the network lifetime. The last contribution relates to the use of these observations by proposing load balancing strategies. Our idea is that very reduced protocols and simple mechanisms can be used in routing protocols. We illustrate these principles through simple examples where we show the superiority of these solutions compared to standard routing like shortest path for example.
Thesis [PDF]