Section: New Results

Deployment and Self-Deployment in FUN

Participants : Nathalie Mitton, Valeria Loscri, Tahiry Razafindralambo.

Mobility management is a difficult task in autonomous networks. However, mobility provide a huge advantage when in comes to specific scenario such as emergency-related ones especially when network connection must be restored to provide basic network access to users. [3] investigates the potential of spontaneous networks for providing Internet connectivity over the emergency area through the sharing of resources owned by the end-user devices. Novel and extremely flexible network deployment strategies are required in order to cope with the user mobility, the limited communication capabilities of wireless devices, and the intrinsic dynamics of traffic loads and QoS requirements. In [3] , a novel architecture is proposed to take advantage of existing end-user devices and some algorithm, are described to build and efficiently exploit the spontaneous emergency network.

Following the emergency scenario described in [3] , [15] and [21] describe an algorithm to minimizes the control trafic generated by specific nodes in the network used repair the network and the deployment of these specific nodes, This nodes, forming a substitution network, in case of emergency, are injected autonomously in the network by the network to restore basic network service. In order to increase the performance of the network, the injected nodes called substitution routers, use their ability to move to change the shape of the network and to increase its performance. These movements needs huge amount of control messages to maintain consistency regarding routers' positions. [15] and [21] give an algorithm for the deployment of these routers and the autoregressive time serie model to reduce the amount of control trafic used for the deployment.