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: Integration of IP based wireless networks in 4G makes seamless handover an important issue. Fast handover uses anticipation of future events based on L2 trigger information for reducing handover latency. Therefore it is necessary to evaluate and compare Mobile IPv6 protocol with other existing mobility management protocols in terms of handoff latency and packet loss. In this paper, performance of IP-based mobility management protocols have been compared by investigating the effect of L2 triggering time, packet arrival rate and average queuing delay on handoff latency and packet loss. Numerical results show that L2 triggering time, packet arrival rate and average queuing delay are important factor for optimization of handover performance.Devices and Communications (ICDeCom), 2011 International Conference on; 03/2011
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ABSTRACT: 4G wireless networks are based on All-IP architecture integrating cellular networks, Wireless local area networks, Worldwide Interoperability for Microwave Access, Wireless ad hoc networks, and Wireless Personal Area Networks etc. This makes seamless handover an important issue for users roaming among these networks. Anticipation of future events based on layer 2 (L2) trigger information is the basic principle of fast handover. It incurs higher signaling costs compared with the other protocols like Mobile IPv6 and Hierarchical Mobile IPv6. L2 trigger is based on fluctuating wireless channel states. Therefore, the handover anticipation using L2 trigger may sometimes be incorrect. Unnecessary buffer space is used for providing a smooth handover in the case of incorrect anticipation. Therefore, it is very important to analyze overhead costs and compare the performance of IP based handover protocols. This paper investigates the impact of L2 triggering time on the signaling cost, packet delivery cost, total overhead cost, and buffer space. Results show that Session to mobility ratio, L2 trigger time and number of subnets are determining parameters for optimizing handover performance.Wireless Personal Communications 02/2013; 68(3). · 0.43 Impact Factor
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