CHIMA: A Hybrid Prefix/Host-Based Routing Approach for Scalable Micro Mobility Management in a Cellular Mobile Internet

Elizabeth N. ONWUKA  Zhisheng NIU  

IEICE TRANSACTIONS on Communications   Vol.E87-B    No.9    pp.2521-2528
Publication Date: 2004/09/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Networking Technologies for Mobile Internet Systems)
Category: Mobility Management
IP micro-mobility,  host-based-routing,  prefix routing,  mobility management,  hybrid scheme,  

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This paper presents a mobility management scheme that combines host-based routing (HBR) with prefix routing to achieve balanced loading of network nodes in a distributed hierarchically arranged mobile IPv6 access network. This allows the higher-level nodes to be less loaded than in pure host based routing schemes, where the root node presents a capacity bottleneck to the system. As a result, this scheme achieves good savings in memory by reducing host-specific caches, and thus enhances network scalability. A direct consequence of reduced database entry is reduced processing latencies at the nodes, which reduces delay and improves on network performance. Our hybrid HBR scheme performs better than the pure HBR schemes in memory conservation and increased network capacity.