Abstract: This paper proposes a model of the AR extensible resource reservation duration and a method for computing the AR request extension loss rate of different QoS levels. This algorithm overcomes the problem that the current AR application needs to declare its starting time and duration of resource reservation in advance. Based on the model of the AR extensible resource reservation duration, the AR request extension loss rate is introduced in the link cost function, and the AR routing protocol of the extensible resource reservation duration is presented. Simulation results show that this routing algorithm increases the success rate of the AR request extension, has a better resource use rate and makes more AR applications with an unpredictable lifetime successfully extend resource reservation duration.

Key words: QoS, AR routing, link cost function