Publication No 36447


Gloss, B.*


System Architecture of a Mobile Message Transport System




Many scenarios of beyond 3G mobile communications describe the integration of various access technologies into one system. Being always best connected under certain optimization criteria will be a crucial point for network operators and mobile users and requires network changes of mobile devices at runtime, the so-called vertical handovers. For those, bandwidth fluctuations up to the order of one or two magnitudes, e.g., when changing from an IEEE 802.11 to a GPRS System, have to be expected and applications have to cope with them in an user friendly way. Multi-modality and flexible data representations exploiting weights and semantic of transmitted data as means for making applications resource adaptive are currently under investigation. On top of that, device and system-wide adaptation control instances are needed to solve cross-layer and inter-application issues. This requires a rethinking of the classical communication paradigm of OSI-like protocol layering. With this paper, an overview on adaptation in communications is presented and an experimental framework providing system support for application adaptation and adaptation control is introduced as part of that discussion.



Reference entry

Gloss, B.
System Architecture of a Mobile Message Transport System
Proceedings of the 11th Open European Summer School and IFIP WG 6.6, WG 6.4, WG 6.9 Workshop (EUNICE 2005), Colmenarejo, Madrid, July 2005, pp. 38-45

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Authors marked with an asterisk (*) were IKR staff members at the time the publication has been written.