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: Proxy mobile IPv6 (PMIPv6) has been developed as a network-based mobility management protocol by the Internet Engineering Task Force. Mobility for individual mobile nodes (MNs) is supported by network entities. PMIPv6 thus eliminates mobility signaling from the MNs as it does not require a mobility stack at the MNs. However, during handovers of MNs, PMIPv6 induces unnecessary location update traffic and suffers the packet loss, which downgrades the quality of mobility support. In this paper, we introduce a state-aware pointer forwarding scheme with fast handover support, called FC-PMIPv6, to further enhance the performance of mobility support in a PMIPv6 domain. In FC-PMIPv6, a pointer forwarding chain between mobility access gateways (MAGs) is established to reduce location update traffic to a local mobility anchor during handovers of an MN. The current mobility state of the MN is also considered in deciding whether the forwarding chain should be prolonged or refreshed by an MAG serving the MN. This mobility state consideration in pointer forwarding reduces unnecessary traffic for the location update and guarantees the efficiency of packet transmission. In addition, a fast handover process is adopted to reduce the handover latency and avoid the packet loss during handovers. We develop analytical models to study the performance of FC-PMIPv6, which consider both the signaling cost and the packet transmission cost. Numerical results not only demonstrate that FC-PMIPv6 outperforms the basic PMIPv6 protocol, but also present a relationship between an optimized length of a forwarding chain and a mobility state of an MN. From the conducted numerical results, for example, it is shown that the signaling cost of FC-PMIPv6 is enhanced up to 23% over the basic PMIPv6 protocol. In addition, simulation results on the weighted signaling cost are provided to demonstrate the performance improvement of our FC-PMIPv6 compared with the basic PMIPv6 protocol.IEEE Systems Journal 03/2013; 7(1):92-101. · 1.75 Impact Factor
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ABSTRACT: Mobile IPv6 (MIPv6) is a host-based protocol supporting global mobility while Proxy Mobile IPv6 (PMIPv6) is a network-based protocol supporting localized mobility. This paper makes its focus on how to reduce the longer delay and extra cost arising from the combination of authentication, authorization and accounting (AAA) and PMIPv6 further. Firstly, a novel authentication scheme (Proxy-AAA) is proposed, which supports fast handover mode and forwarding mode between different local mobility anchors (LMAs). Secondly, a cost analysis model is established based on Proxy-AAA. From the theoretical analysis, it could be noted that the cost is affected by average arrival rate and residence time.Journal of Korean Society for Internet Information. 01/2012; 13(1).
Conference Paper: Analytical method for L3 handover latency evaluation[Show abstract] [Hide abstract]
ABSTRACT: Recent years in the field of mobile communications have brought two significant requirements - seamless service delivery and Quality of Service provisioning. Since seamless mobility goes hand in hand with Mobile IPv6 protocol and since various handover schemes of this protocol are trying to solve the QoS issue, there is a need for comparison of such handover schemes. In this paper we are presenting a method for evaluation of the Layer 3 handover schemes from the handover latency point of view. We are also providing results of this comparison for four most common handover schemes of Mobile IPv6 (MIPv6, FMIPv6, HMIPv6 and F- HMIPv6). However, the method is applicable to any other current or future handover scheme.Proceedings of the European conference of systems, and European conference of circuits technology and devices, and European conference of communications, and European conference on Computer science; 11/2010