Performance Studies of Layered MIPv6 based Network Architecture for better QoS: a

Layered architecture is considered as a suitable solution for seamless mobility for Mobile IPv6 based network in terms of handoff latency. But too many layers in the hierarchy introduce large amount of packet drop at the anchor agents and degrade the efficiency of anchor agents. So, determining the optimal layers of hierarchy for better QoS parameters such as handoff latency, packet loss and overall efficiency is a challenging research area. The work presented in this paper is a mathematical analysis of a general n-layered architecture to find optimal levels of hierarchy with minimum handoff latency and packet dropping probability along with a measure of efficiency of anchor agents at different layers. The factors that affect the performance of the hierarchical model are the number of mobile nodes under an anchor agent and packet arrival rate at the agent. We assume that each of the anchor agents in the network maintains an M/M/1/K queue an