This paper investigates the performance of two Layer 3 low latency handoff protocols proposed by the IETF, namely Pre-and Post-Registration. These protocols use Layer 2 triggers to reduce the built-in delay components of Mobile IP. We propose a simple analytical model that allows assessing the packet loss and the delay characteristics of these protocols. We describe several handoff implementations over a wireless access based on the IEEE 802.11 standard and analyze several implementation issues. Finally we study the scalability of the protocols using an OPNET simulation.
In this paper we evaluate a low latency handoff protocol for MIPv4, the Post-Registration handoff method. This mechanism proposed by the IETF tries to improve the performance of Hierarchical Mobile IP by decreasing the handoff latency. We give a detailed description of the protocol behavior by means of an ns simulation and propose a simple queuing model to study the influence of various parameters on the protocol performance.I.
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