Performance evaluation of anycast-based micro-mobility management

Abstract

The common goal of micro-mobility proposals is to minimise delay, signalling load and packet loss during handover. Most of the existing mobility management protocols rely on a hierarchical architecture, to reduce routing update latency. The main drawbacks of hierarchical architectures are their vulnerability to failures at higher levels of hierarchy and the increasing load of network nodes at these levels. The anycast-based micro-mobility protocol is not sensitive to node or link failure, since it contains no centralised database and the routing information is distributed among network nodes. Our solution is highly decentralised and uses an enhanced IP-based mobility detection method. The proposed scheme is independent of the radio layer and does not introduce any extra signalling load on the wireless interface. The signalling load introduced by the routing information updates is proportional to the number and speed of mobile nodes in the network.