An Efficient Macro Mobility Scheme Supporting Fast Handover in Hierarchical Mobile IPv6.
ABSTRACT People who use wireless device for Internet are gradually increasing. For mobility service, MIPv6 has been proposed by IETF.
With no restriction on node’s geographical location, mobility is provided to a mobile node (MN) by MIPv6. However, MIPv6 has
critical points, such as handover latency resulting from movement detections, IP address configurations and location updates
which is unacceptable in real-time application. To make up for it, hierarchical MIPv6 (HMIPv6) has been proposed. HMIPv6 guarantees
to reduce handover latency, because the MN only registers the new addresses at mobility anchor point (MAP) when the MN moves
around access routers in the same MAP domain. HMIPv6 still has packet loss problem when the MN moves from one MAP to another.
In this paper, we propose an efficient handover scheme which reduces packet loss when the MN moves between MAP domains. We
adopt the fast handover method from FMIPv6 (fast MIPv6) for proposed scheme.
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ABSTRACT: Since the Wibro service realize mobile network on the public, it has been considered that it is not enough to support real time service at vehicular speed. The standard Fast Mobile IPv6 Handover Protocol using HMIPv6 may guarantee seamless service as long as the Mobile Node moves in the same domain MAP however it does not regard fast handover over inter-MAP domain. Thus Macro Mobility Handover in HMIPv6 was proposed to reduce handover latency in inter-MAP domain. But it is still not enough to support real-time service. So we propose an Improved FHMIPv6 over 802.16e network to reduce the overall handover latency. We embedded Layer 3 handover messages of the FHMIPv6 into the Layer 2 handover messages. So the MN is able to finish overall handover procedure earlier in our scheme. The numerical results show the performance of IFHMIPv6 has improved 32% in comparison with FHMIPv6.01/1970: pages 415-423;
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ABSTRACT: Mobile IPv6 (MIPv6) is protocol to support mobility with no restriction of a mobile node (MN)’s geographical location in the network. However, MIPv6 has weak points, such as handover latency resulting from movement detections, IP address configurations and location updates which is unacceptable in real-time application. To make up for it, IETF considers fast mobile IPv6 (FMIPv6) and hierarchical mobile IPv6 (HMIPv6). FMIPv6 aims to reduce handover latency and data loss. HMIPv6 aims to manage the MN’s mobility and reduce handover latency. Since the FMIPv6 and HMIPv6 provide the fast micro mobility scheme when the MN moves between access routers within same mobility anchor point (MAP), they are not appropriate for the macro mobility when the MN moves between the MAPs. Besides, the macro mobility using these schemes will not provide mobile devices with seamless service, which causes packet losses. To make up for it, the efficient macro mobility scheme supporting fast handover has been proposed However, if the MN does not receive a fast binding acknowledgement (FBACK) message before L3 handover, the packets destined to the MN are lost during L3 handover. In this paper, we propose an efficient macro mobility supporting reactive fast handover mode to reduce packet loss when the MN does not receive the FBACK message before L3 handover. We adopt the fast handover method from FMIPv6 (fast MIPv6) for proposed scheme.Computational Science and Its Applications - ICCSA 2007, International Conference, Kuala Lumpur, Malaysia, August 26-29, 2007. Proceedings, Part II; 01/2007
Conference Paper: Fast Handover Solution Using Multi-tunnel in HMIPv6 (FM-HMIPv6)[Show abstract] [Hide abstract]
ABSTRACT: Fast handover protocol provides seamless handover in mobile IPv6 networks by reducing handover latency. One assumption in fast handover is that the MN (Mobile Node) or the network could know or predict the new AR (Access Router) before data transport from the previous AR to the MN is disrupted. In order to achieve this capability, the complexity of predicting the new AR and the diversity of the wireless link technologies should be considered. While it is difficult to know or predict the new AR exactly, a better solution is required to find a reasonable set of candidate ARs (i.e., neighbor ARs) that are likely to be the new AR after a handover. This paper introduces a solution to support a fast handover mechanism using multi-tunnels between MAP (Mobility Anchor Point) and neighbor ARs in HMIPv6 (Hierarchical Mobile IPv6) network. It includes the concepts of Proxy Mobile IP for creation of CoA (Care of Address) and DAD (Duplicate Address Detection). In this protocol, the MN can handover without receiving any information about the new AR and this eliminates difficulties to know or predict exactly the new AR which is not specified in standard fast handover scheme. It decouples layer-2 and layer-3 handover and efficiently reduces handover latency through the minimized number of wireless signaling messages and pre-DAD. It also saves periods of service disruption and prevents packet loss in the case of ping-pong movement of the high-speed MN. The performance of the proposed mechanism is evaluated by simulations under variable conditions.Sensor Technologies and Applications, 2008. SENSORCOMM '08. Second International Conference on; 09/2008