In Ad hoc networks, nodes can communicate without any pre-existing infrastructure. Topology is created dynamically and can change upon nodes mobility. Hence, the function of routing becomes very complex. Many protocols are now standardized to calculate routes between a couple of nodes in an ad hoc network. These protocols find shortest routes based on the number of hops between source and destination.
When extending the routing function to take into account quality of service parameters such delay, available bandwidth, loss probability, etc., the problem becomes more and more complex. In this seminar, we present works that we proposed in this topic that permits to find routes offering quality of service by using the OLSR protocol for ad hoc networks.