QoS provisioning in three layer MIPv6 Architecture using RSVP

The goal of mobile IP based architecture is to provide seamless mobility with minimized handoff latency, signaling overhead and tunneling cost. There are many research work proposed to support such seamless mobility. Most of the proposals suggest hierarchical arrangement of anchor agents to support minimized handoff latency and signaling cost. But these proposals provide only best-effort services to end users. For worldwide acceptance of the architecture, it must offer service guarantee to end users. Quality of service (QoS) provisioning is difficult but a task of high importance in communication networks. The Resource Reservation Protocol (RSVP) has gained its popularity as a signaling protocol in IP based networks for offering guaranteed service to end users. Although RSVP was primarily designed as a receiver initiated protocol for wired networks, it is extended to wireless environment by making few minor changes and adding new message types and reservation models. In this paper, a framework is proposed by extending RSVP to three layer architecture for seamless mobility with preferential treatment to a certain type of traffic in an IPv6 based mobile network to satisfy end users QoS. Simulation results show that a three layer mobility model with RSVP can give better performance in terms of both average delay suffered by every packet and packet delivery ratio