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In addition to terminal mobility enabled by wireless transmission in mobile cellular networks, future telecommunication systems must also provide for appropriate capabilities to support other mobility forms, as there are personal and session mobility as well as service portability. To cope with the strong user requirements concerning service provision and mobility support, future service architectures can be regarded as global distributed systems in which billions of stationary and mobile objects move and interact to optimally support the nomadic user. Based on this scenario, this work proposes localization and migration strategies for objects. The concept of location bridges is introduced, which enables to dynamically implement arbitrary localization strategies and which covers the aforementioned mobility forms. Using different combinations of localization and migration strategies, support of the various mobility forms is demonstrated in the context of the TINA service architecture. Finally, the suggested approaches are evaluated by mathematical analyses.
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Nomadic communication in converging networks, Axel Küpper
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- Année de publication
- 2001
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