Dynamic Point Forwarding Scheme for QoS-aware Mobility in Future All-IP Wireless Networks

To provide ubiquitous services and the same real-time services as those available on the wired networks for mobile users, this paper proposes an efficient and intelligent QoS-aware mobility scheme, coined dynamic point forwarding scheme under mobility scenario in future all-lP wireless networks. Considering dynamic channel characteristics and user mobility in wireless networks, the proposed scheme takes advantage of both the point forwarding scheme in mobility management and dynamic RSVP (DRSVP) in QoS guarantee. Moreover, in order to overcome deficiencies in conventional point forwarding scheme, we develop a new decision criterion for performing forwarding chain update, which achieves a better trade-off between network resource consumed by routing path and signaling load for forwarding chain updates. Based on the performance analyses, our proposed scheme can substantially reduce more resource reservation than the conventional pointer forwarding scheme, thus it can achieve efficient resource utilization and guarantee QoS requirements of multimedia applications in the future wireless all-IP networks.