Discovering the most appropriate available service for a task in a wireless adhoc network is addressed in this paper. The location of the clients and services may dynamically change and the multihop environment does not rely on an existing communication infrastructure. ”Appropriateness” of a service is a system-specific definition, such as the “nearest” service available. Mobile nodes dynamically establish routing among themselves to form a network “on the fly”. The network services may reside on a mobile entity or a fixed server. Such environments require a resource discovery model based on expressive and descriptive service definitions for binding. We present a service discovery protocol based on a node mobility and service definiton model formally specified in eXtensible Markup Language(XML) The protocol employs a session-based approach to service access whereas the discovery algorithm accomodates both the service location and the route information for late binding. Initial thoughts on a simulation environment for validating and performance analysis of the model is also discussed.

Proceedings of Sixth Semposium on Computer Networks, BAS’2001, Magusa
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