MOBILE APPLICATIONS AND SERVICES
George Liu, Ericsson Radio Systems, Gerald Maguire, KTH Telecommunication Systems
Mobile Distributed File Systems
Distributed systems are gaining popularity over traditional
centralized systems. Using mobile communication, users of a
distributed system may become disconnected and partitioned from the
rest of the system. Few current systems are addressing this
problem. Proposed solutions use techniques where part of the
information is cached and updates are performed when there are
available links. The literature on distributed database shows a number
of strategies for replica control and concurrency control. Activities
in this area will be to scan the literature, propose modifications in
distributed file systems so that they will suit the Walkstation and
GSM systems in the mobile environment.
Mobile Location-Dependent Services (Intelligent Mobile Networking)
An important aspect of future mobile communication systems will be
satisfied by Intelligent Mobile Networking to cope with different
links (GSM, DECT, WLAN, IR and High Speed Wireless LAN, etc.) at
different or same locations. This means a mobile terminal with
multiple communicating ability should be aware of its current link
ability and potential link ability (available networks) through some
necessary information (location, etc. ) provided by the mobile
network. When the mobile terminal moves, it predetermines the links
and services offered at the new location and chooses/adapts, with
different strategies, the best available network (link) when moving
into the new location. In this subproject, we will explore what
information the network can provide to the mobile terminal and how
location and other information can be used to predetermine the
different services offered by the mobile infrastructure.
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Gerald Maguire - maguire@it.kth.se