Abstract: A routing method in an ad hoc network between a source node (S) and a destination node (M) to guarantee a required quality of service level between the source node and the destination node. The source node (S) sends a route request to the network, request containing required quality of service level and an initial value of cost function (Fg). A node receiving a route request sent by a neighbor node then refuses said request if node is not able to guarantee said required quality of service level, and sends over the network a route request containing required quality of service level and a value of cost function combining a value of the cost function received from a previous neighbor node and a value of The cost function calculated on a connection with a neighbor node.

Abstract: A routing method in an ad hoc network between a source node (S) and a destination node (M). In order to guarantee a required quality of service level between the source node and the destination node, the method comprises the steps of, in a preliminary step, evaluating at each node of the network a quality of service level for each connection between said node and the neighbor nodes, and establishing a cost function (Fg) representative of the cost in terms of resources necessary to guarantee a given quality of service level on a connection between a node and each of the neighbor nodes. The source node (S) sends a route request to the network, said request containing said required quality of service level and an initial value of said cost function (Fg).