A Mobile Ad hoc Network (MANET) is a collection of devices/nodes or terminals with wireless communications and networking capabilities that communicate with each other over wireless links and without the aid of any centralized administrator. It is an independent system of mobile nodes that may operate in isolation, or may have gateways to interfere with a fixed network. In an ad hoc network each node functions as both a host and a router. Hence, packets to be exchanged between two nodes that are not in direct range with each other are relayed by intermediate nodes. In this context and during the last ten years, we were interested in designing efficient data dissemination techniques and quality of service schemes while targeting some major applications of wireless ad hoc networks. We focused our works on three important applications of wireless ad hoc networks, the wireless body sensor networks WBANs, the large-scale wireless sensor networks LSWSNs, and the vehicular networks (classical Vehicular Ad hoc Networks VANETs and Unmanned Aerial Vehicles UAVs or Drones). My presentation will summarize the main research activities we carried out within these applications of wireless ad hoc networks, and highlights our main contributions in each of them within supervised and already defended PhD thesis.

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Rapid advancements in wireless technology and the emergence of new wireless applications such as wireless Internet, have resulted in the vast proliferation of wireless communications networks which are growing in popularity due to the abundance of low-cost mobile devices, and the speed and convenience of their deployment. These networks can be used in many domains (domestic use, professional use, ...), however their configuration remains a task for a network administrator. Network configuration is the assignment of network parameters necessary for these mobile devices to integrate the network, as, for instance, an IP address, netmask, the IP address of the gateway, ... Hence, it is essential to provide autoconfiguration services destined for people who are not familiar with the complex task of network configuration within an IP-based network. Furthermore, in the case of mobile ad hoc networks (MANETs), nodes are highly dynamic and a central administration or configuration by the user is very difficult. For small scale MANETs, it may be possible to allocate free IP addresses manually. However, the procedure becomes impractical for a large-scale or open system where mobile nodes are free to join and leave. On the other hand, securing communications is a relevant issue within an ad hoc network. In fact, the broadcast nature of wireless communication links makes them unique in their vulnerability to security attacks. This thesis addresses these two problems in ad hoc networks. Some of the existing solutions are reviewed while a number of new solutions have been introduced.

	PhD thesis manuscript :
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