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A. Díez de los Ríos:
"Simulative Analysis of Fast Signalling Enhancements for Mobile IPv6";
Supervisor: N. Jordan; Institut für Breitbandkommunikation, 2005.

Mobility management in IP networks is considered a core technology in modern network environments, since more and more communication networks move towards all IP networks. The Mobile IPv6 protocol allows an IPv6 host to leave its home subnet while transparently maintaining all of its present connections and remaining reachable to the rest of the Internet. This is essentially realized by assigning a static home address and a dynamic Care-of address, which keeps on
changing as the mobile node moves from one subnet to another. One of the major issues regarding the basic IPv6 protocol is related to the handover management of a mobile node. Whenever a mobile node performs a handover from its current subnet to the new subnet, the whole handover process results in non-trivial latency and packet loss. The Fast Router Advertisement protocol is a proposed enhancement for Mobile IPv6 that attempts to reduce this handover latency. This thesis
presents a simulative comparison of standard Mobile IPv6 and Fast Router Advertisement proposal. To accomplish realistic simulation results, a scenario with nine access routers and up to 70 mobile
nodes, which make use of the IEEE 802.11 standard, is designed. The simulative study analyses the effects of the proposed Mobile IPv6 enhancement on performance aspects, by observing a single
mobile node influenced by a number of randomly moving nodes. By using ns-2, simulation results could be achieved for different types of traffic, such as constant bit rate UDP, Voice over IP, Video
stream, and TCP. Furthermore, in order to complete the study, the effect of the wired link delay as well as the handover rate on the signalling load are also analysed.