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Evènements et manifestations

27/06/2016

Doctorate thesis defense of Sarra BERRAHAL




Doctorate thesis defense on June 27th 2016 at 09H00 AM ,in Amphi I, Sup’Com.


Entitled :Wireless Body Area Network Systems Supporting Individuals Working in Hazardous Environments

Presented by : Sarra BERRAHAL 





Committee


President

Pr. Nabil Tabbane

SUP’Com, University of Carthage

 

 

 

Examiners

Pr. Axel Sikora

Offenburg University, Germany

 

Dr. Lamia Chaari

ISIMS, University of Sfax

 

Member

Dr. Slim Rekhis

SUP’Com, University of Carthage

 

Thesis Director

Pr. Noureddine Boudriga

SUP’Com, University of Carthage

 

 

 

Industry Guest

Mrs. Wided MAALEL

Director of Control of Technology, STEG


Abstract


Wireless Body Area Network (WBAN) consists in a collection of smart, low-power, hardware-constrained, and miniaturized sensors attached to (or implanted into) a moving/fixed body and that cooperate for the benefit of an application such as the tracking of human behavior in critical areas. The focal area of thesis addresses the development of a generic WBAN-based system for assisting individuals evolving in critical and hazardous environments. The contribution of the thesis is four-fold


First, we proposed a WBAN-assisted navigation approach for groups of users in indoor hazardous environments. The system is based on a Temporal Mobile Weighted Graph (TMWG) that provides continuous and real-time monitoring of surrounding hazards (e.g., fires), identifies hazards sources, estimates risk’s aggravation, and provides surveillance, localization, and tracking of workers


Second, a traffic engineering approach for a network of WBANs is proposed to provide real-time monitoring services for mobile users while guaranteeing the constrained end-to-end QoS. Proactive and reactive resource management mechanisms are also proposed to optimize resource utilization and minimize transmission blocking.


Third, we developed a surveillance system for large-scale environment that is based on a set of cooperative sensors networks including a terrestrially deployed WSN, a mobile WBANs, and aerial unmanned vehicles (UAVs). An UAV-based maintenance solution is presented to investigate and repair network and communication failures.


Fourth, we proposed to integrate WBANs and cloud computing in order to design distributed sensorcloud databases in infrastructure-less environments. A querying mechanism of data already stored in cloud servers as well of continuous streamed data from WBANs is described.


Keywords


Wireless Body Area Network, Hazardous environment, Navigation, Risk estimation, Mobility, QoS provisioning, Traffic heterogeneity, Network maintenance, and Querying techniques.