A decentralized Information Service for IEEE 802 . 21-Media Independent Handover ( MIH )

Mobility frameworks nowadays are elaborate systems that involve many components that perform distinct operations. The IEEE 802.21 Media Independent Handover (MIH) standardized the functionalities of mobility frameworks and the interfaces between these components. The Information Server, a part of the MIH framework, is a system that contains information that is used for network intelligence purposes. Current mobility frameworks, especially the Information Server, are highly depended on the network infrastructure. Network operators are, however, reluctant to provide true mobility support to end users. To enable true mobility and MIH for end users who want to be independent, a decentralized Information Server is required that is maintained by the users themselves. This paper presents a decentralized approach to MIH to enable end users with robust handover support. We analyze a decentralized hierarchical architecture and examine its performance. We investigate the scalability with regards to users in the system, entries stored in the database, the construction of the decentralized design, and the information distribution in the service. We conclude that the proposed system is feasible to implement MIH as a decentralized system and the proposed architectures indicates to be scalable.

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