Resource Allocation in Ad Hoc Networks with Two-Hop Interference Resolution

6International audienc

Allocation équitable de ressources dans les réseaux ad hoc OFDMA

Session Posters & DemosInternational audienceLa technique de partage OFDMA permet d'allouer des ressources discrètes aux communications. Dans cet article, nous présentons un nouvel algorithme distribué d'allocation des Ressource Blocks dans un réseau ad hoc OFDMA. Nous considérons une allocation des ressources sur les liens et un modèle d'inter- férence à deux sauts. Les performances de notre algorithme sont évaluées par simulation et les résultats sont comparés à des bornes théoriques

A Composite Mobility Model for Ad Hoc Networks in Disaster Areas

Ad hoc network is an essential means of communication in disaster scenes. Validation of new communication protocols for these networks requires exhaustive simulation runs because real life experiences can be performed exclusively during expensive civil protection exercises. The necessity of these simulations calls for realistic and reliable mobility models which take into account numerous aspects of rescue worker interventions. We propose a composite model of mobility for disaster scenarii which includes a realistic model of human displacement, team mobility, and obstacle avoidance. The comparison of its performance with those of other available models is encouraging. We believe that it can improve the veracity of rescue operation simulations

Ad Hoc Network in a Disaster Area: a Composite Mobility Model and its Evaluation

International audienceAd hoc network is an essential means of communication in disaster scenes. Validation of new communication protocols for these networks requires exhaustive simulation runs because real life experiences can be performed exclusively during expensive civil protection exercises. The necessity of these simulations calls for realistic and reliable mobility models which take into account numerous aspects of rescue worker interventions. We propose a composite model of mobility for disaster scenarii which includes a realistic model of human displacement, team mobility, and obstacle avoidance. The comparison of its performance with those of other available models is encouraging. We believe that it can improve the veracity of rescue operation simulations

Resource Allocation in Ad Hoc Networks with Two-Hop Interference Resolution

6International audienc

Self-stabilizing algorithm of two-hop conflict resolution

ISBN 978-3-642-16022-6International audienceAd hoc networks are increasingly used by the civil protection forces to coordinate their actions in emergency situations. To enable them to work properly, the satisfaction of the demanded quality of service (QoS) is crucial. One of the most effective methods of assuring the QoS is to use multiplexing modes based on a resource reservation like TDMA or FDMA. The principal demands in terms of QoS concern a guarantee of connectivity and resource availability. Our idea consists in the separation of the interference detection mechanism in order to make it independent of the “pure” resource allocation algorithm. We present an algorithm which detects and corrects conflicts of assignment. Our algorithm is proved to be self-stabilizing and reaches a stable state in up to five rounds