Habaebi, Mohamed Hadi
(2006)
Macro/micro-mobility fast handover in hierarchical mobile IPv6.
Computer Communications, 29 (11).
pp. 611-617.
ISSN 0140-3664
Abstract
Mobile Internet Protocol version 6 (MIPv6) has been proposed to solve the problem of mobility in the new era of Internet by handling
routing of IPv6 packets to mobile nodes that have moved away from their home network. Users will move frequently between networks, as
they stay connected to the Internet. Thus, as mobility increases across networks, handovers will significantly impact the quality of the
connection and user application.
However, MIPv6 only defines means of managing global (macro)-mobility but does not address micro-mobility separately. Instead, it uses
the same mechanism in both cases. This involves long handover delay and signaling load. The Hierarchical Mobile IPv6 (HMIPv6) protocol
has been proposed as an extension of basic MIPv6 to solve this problem by splitting the handover management into macro-mobility and
micro-mobility schemes. HMIPv6 introduced a new protocol agent called Mobility Anchor Point (MAP) to manage mobility and serve as a
local entity to aid in mobile handover. The handover (or registration) operation is the operation when MN registers its presence to its Home
Agent (HA) and Correspondent Node (CN).
This paper proposes a mechanism to perform fast handover in HMIPv6 by adopting the multicast technique to the MAP for both macromobility
and micro-mobility management. Our proposal is designed to minimize service disruption that occurs during the registration
operation. We simulate the performance using network simulator (NS-2) and we present and analyze the performance testing for our proposal
by comparing it with the basic hierarchical mobile IPv6. The results show that our scheme allows the MN to receive packets faster than the
basic HMIPv6.
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