A performance comparison of multi-hop wireless ad hoc network routing protocols
MobiCom '98 Proceedings of the 4th annual ACM/IEEE international conference on Mobile computing and networking
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Mobile IPv6 fast handover mechanism in wireless LAN with several access routers
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ICCSA'03 Proceedings of the 2003 international conference on Computational science and its applications: PartI
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SpringSim '10 Proceedings of the 2010 Spring Simulation Multiconference
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ICN'05 Proceedings of the 4th international conference on Networking - Volume Part I
Measurement based analysis of the handover in a WLAN MIPv6 scenario
PAM'05 Proceedings of the 6th international conference on Passive and Active Network Measurement
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IPOM'05 Proceedings of the 5th IEEE international conference on Operations and Management in IP-Based Networks
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EURO-NGI'05 Proceedings of the Second international conference on Wireless Systems and Network Architectures in Next Generation Internet
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Mathematical and Computer Modelling: An International Journal
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International Journal of Wireless Networks and Broadband Technologies
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We performed a simulative evaluation of Mobile IPv6 (MIPv6) via ns-2 for a scenario comprising up to three access routers and 30 mobile nodes that communicate in accordance with the IEEE 802.11 wireless LAN standard. We compare standard MIPv6 to a fast handoff procedure and analyze route optimization issues. We present results with respect to handoff latency, packet loss, end-to-end delay, signaling load, channel utilization, and bandwidth per station, and show how various traffic types like UDP CBR, VoIP, and TCP are affected by the handoffs. While some simulation results corroborate the intention of the protocol specification, other results give insights not easily gained without performing simulations. For example, we learned that (i) the fast handoff mechanism almost fully eliminates packet losses but only improves handoff latency in specific cases, (ii) the signaling load introduced by MIPv6 does not severely affect the performance, and (iii) in a shared environment like IEEE 802.11, traffic type can affect the handoff rate since in high-load situations router advertisements might get lost more frequently thereby 'irritating' the handoff decision mechanism. As a challenge for future simulations we have identified the design of a random mobility model that allows good control of the handoff rate.