<p lang="en">This paper presents an overview of the research activities accomplished in the N-QaS (Networking, Quality and Security Group) in the area of quality of service (QoS) in wireless environments and concretely in Ad HOC networks. After studying the different objective parameters that can be used to guarantee a minimum of QoS (such as: bandwidth, delay, jitter and rate of errors), and with the later study of different signalling systems for the reservation of resources (such as INSIGNIA and dRSVP), the possibility has been identified of using the period of discovery of routes from the origin to the destination (in search of the road that better responds to our necessities from the point of view of the QoS) only not thinking of the shortest road (the one that less hops offers from the origin to the destination, habitual operation from the point of view of the most routing protocols, it is not the most effective parameters in the QoS) also keeping in mind that we are allowed to be able to give priority to other parameters of QoS (objective parameters) and that they can be reserved for the whole session of communication in the same way that the route is reserved. And what is more important, this whole process would be made in parallel (at the same time), winning this way in functionality (we are fusing two necessary processes in one).</p>

<p lang="en">Portsmouth, U.K. December 1-3, 2004