FAST HANDOVER ALGORITHM FOR HIERARCHICAL MOBILE IPv6 MACRO-MOBILITY MANAGEMENT
Keywords:
handover, Mobile IPv6, Hierarchical MIPv6, Macro mobilityAbstract
The Mobile IPv6 (MIPv6) mechanism requires some handover algorithm when it changes its point of attachment to the Internet. This causes MIPv6 to incur long delays and signaling loads to the backbone networks. These limitations are the result of the lack of hierarchy in the MIPv6 mobility management; using the same mechanism for macro-mobility and micro-mobility, is an inefficient use of resources in the case of local mobility.
Hierarchical Mobile IPv6 (HMIPv6) is an extension of MIPv6 designed to reduce the signaling load and to improve the handover speed for mobile connections by introducing a new protocol agent called mobility anchor point (MAP) and splitting the mobility management into macro-mobility and micro-mobility schemes. However HMIPv6 only improves the micro-mobility problem while significant delay still occur in the HMIPv6 macro-mobility management because the handover algorithm is similar with the MIPv6 in this environment.
This paper proposes a new fast handover algorithm that overcomes the limitations in Mobile MIPv6 and its extension HMIPv6. Our design objective is to re-establish the communication traffic flow quickly and to minimize the service disruption delay that occurs during the handover process in a macro-mobility environment. This fast handover algorithm is based on modifying the HMIPv6 protocol using the multicast technique concept. This algorithm will enable the mobile node to receive packets faster than through the HMIPv6 protocol during handover in a seamless and transparent matter.
References
Chuan, C. Nee. (1999). Network Provisioning and Resource Management for IP telephony. In: editor of Proceeding of Iceberg Retreat. Iceberg. Report No. UBC/CSD-99-1061. Available at: http://www.cs.berkeley.edu/~chuah/research/Powerpoint/qos-jan99.ppt
De Silva, P. and Sirisena, H. (2001). A Mobility Management Protocol for IP-based cellular networks. In: editor of Proceedings of IEEE ICCCN. Scotsdale AZ.
Internet Engineering Task Force. Internet Draft. (2003). Context Transfer, Handoff Candidate Discovery, and Dormant Mode Host Alerting (seamoby). Available from IETF; draft-ietf-seamoby-card-protocol-01.txt.
Internet Engineering Task Force. Internet Draft. (2001). Hierarchical MIPv6 Mobility Management (HMIPv6). Soliman, H., Castellucia, C., Elmalki, K. and Bellier, L., Available from IETF: draft-ietfmobileip-hmipv6-05.txt, work in progress.
Internet Engineering Task Force. Internet Draft. (2001). IP Mobility Support for IPv6, revised. Perkins, C. Available from IETF; draft-IETE-mobileip-rfc2002-bis-08.txt.
Misra, Das S. and Das, S.K. (2002). IDMPBased Fast Handoffs and Paging in IP Based 4G Mobile Networks. Mag IEEE Communication, fourth Generation Mobile Initiatives and Technology 3(40).
Solomon., J.D. (1998). Mobile IP-The Internet Unplugged. Prentice Hall, New York. p. 274-272.
Tan C. Lin and Pink, S. (2000). Mobicast: A Multicast scheme for Wireless Network. ACM J. Mobile networks and Application. p. 259-271.
University of Berekley. (2003). Network Simulator (NS-2). Available from: http://www.ISI.edu/nsnam/ns
