A Cross-Layer Design Technique for QoS over Optimized Route in MIP

Mobile IP supports the increasing demand to connect portable computers to the Internet at any time and any place. In this context, optimizing the routes via which the packets travel is critical to the network performance while providing quality of service is critical for real time services over Internet. There are solutions for providing optimized routing and there are solutions to provide QoS in mobile IP environment. However, when QoS is needed along with optimized routing, a signaling conflict results in degradation of network performance. In this paper, we propose a cross-layer design technique that performs routing optimization considering QoS requirements. This is done using a new inter-working between different layers of network architecture. First the optimized route is chosen based on the characteristics of environment and application QoS requirement, then the resources are reserved on the optimized route. While avoiding the signaling conflict, this will result in increased network performance.