Abstract:
One motivation of mobile Next-Generation
Networks (NGN) is the ubiquitous computing abilities,
which provide automatic handovers for any moving
computing devices in a globally networked
environment. The vertical handover is defined as the
process of changing from one technology to another.
For example, the data services are switched to
Wireless Local Area Networks (WLAN) from the
previously attached Universal Mobile
Telecommunication System (UMTS) networks. Identity
Management is considered important for vertical
handovers for managing continued access to network
resources. In this paper, we address several aspects of
identity management requirements in the vertical
handovers between UMTS and WLAN.
