Low Latency Handoff Mechanisms and Their Implementation in an IEEE 802.11 Network

摘要

In this paper we compare the performance of two low latency handoff protocols for MIPv4, Pre- and Post-Registration Handoff. These mechanisms proposed by the IETF aim at improving the performance of Hierarchical Mobile IP with respect to handoff latency and packet loss. We propose an analytical model to study the influence of various system parameters on the performance of the two protocols, followed by a comparison of the two schemes. We describe several handoff implementations over a wireless access based on the IEEE 802.11 standard and analyze them by means of an ns simulation.