| dc.description.abstract | The emergence of wireless networks increases the probability of access network everywhere, especially ad hoc network. The Ad hoc network can support the communication between users without any network infrastructure. In this architecture, users can setup the network connections and communicate to each other users quickly and casually by the help of members. Because of this characteristic, the mobility of user will cause the change of topology, and that routing path is not available any more. This situation will decrease the performance of whole network. So, we have to consider about this factor when setting up routing strategies. Besides, the bandwidth of wireless network is limitative and shared by all users, so it is a serious subject to reach the QoS commitment. In this thesis, we propose a routing method to find a stable path, and support different kind of routing strategies of bandwidth reservation according to the priority. Relying on the variation of signaling strength, we can calculate the speed and direction of a moving user. And we can predict the lifetime of the link between users. The accuracy of our prediction may affect the performance of this routing strategy. We try to provide the service of the bandwidth guaranteed for specific user in the QoS topic.
At the end of this thesis, we simulate the proposed routing strategy by network simulation 2. By the result of simulation, the proposed strategy can accommodate the network topology that may be influenced by the movement of users or different call arrival rate. And the proposed strategy also can increase the throughput of system, reduce the packet loss rate and procure the objective of QoS with a little raised of control overhead. | en_US |