Dynamic adaptation of network connections in mobile environments

Most network applications assume continuous connectivity-an assumption that does not "migrate" to wireless environments. The authors present the design of a communication layer for mobile computing that dynamically adapts to changes in network connections. Our work was part of AMIGOS (Adva...

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Bibliographic Details
Published in:IEEE internet computing 1998-01, Vol.2 (1), p.39-48
Main Authors: Hansen, J.S., Riech, T., Andersen, B., Jul, E.
Format: Article
Language:English
Subjects:
Collaborative work
Computer networks
GSM
Home computing
Local area networks
Mobile communication
Mobile computing
Modems
Operating systems
TCPIP
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Summary:Most network applications assume continuous connectivity-an assumption that does not "migrate" to wireless environments. The authors present the design of a communication layer for mobile computing that dynamically adapts to changes in network connections. Our work was part of AMIGOS (Advanced Mobile Integration in General Operating Systems), a collaboration between researchers at the University of Copenhagen in Denmark and the University of Minho in Portugal. The AMIGOS project provides transparent support for semi connected operations on mobile computers running a standard operating system; the project home page is at http://www.econ.cbs.dk/people/birger/AMIGOS/. Briefly, our design lets a mobile user connect a mobile host to a LAN, then disconnect the host from it. The user then can reconnect, for example, via a Global System for Mobile Communications (GSM) cellular modem without losing TCP/IP connections. We want to allow existing TCP/IP based applications to be used in a mobile environment, without application modifications.
ISSN:1089-7801
1941-0131
DOI:10.1109/4236.656070