Trinity College Dublin, Department of Computer Science
Hurst, Leon; Cunningham, Pádraig. 'Mobile Agents - Smart Messages'. - Dublin, Trinity College Dublin, Department of Computer Science, TCD-CS-1997-05, 1997, pp12
Computer Science Technical Report TCD-CS-1997-05
Wireless communication with Mobile Computing devices is known to be
problematic. It is very different in character from conventional communication over wired
networks. Since many distributed applications make assumptions about network
characteristics, they may not be used in a hostile mobile environment.
We are proposing a new kind of messaging system which incorporates adaptive
behaviour into the messages themselves. We call these ‘Smart Messages’, and implement
them using Mobile Agents. The metaphor we use is of a message being delivered by a
courier (Mobile Agent), on a potentially unresolved route. The ‘intelligence’ is in the
messages themselves rather than in the network.
The approach taken expands on the self-routing capabilities of current Mobile Agent
systems such as Aglets or Telescript. We aim to provide structured support for handling
the particular problems associated with wireless communications. These include very
limited, variable and asymmetric bandwidth, frequent and prolonged disconnections,
geographical mobility and high usage costs. ‘Smart Messages’ offer an efficient,
adaptable and robust solution to many of these problems.
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