Technical Report Number
Service oriented computing, with its aim of unhindered in-teroperability, is an appropriate paradigm for ad hoc net-works, which are characterized by physical mobility of het-erogenous hosts and by the absence of standardized application level protocols. The decoupled nature of computing in ad hoc networks can result in disconnections at inoppor-tune times during the client-service interaction process. We introduce the notion of a priori selection of services to reduce the likelihood of disconnection during service usage. A client may specify the times when it requires certain ser-vices. A knowledge base of the physical motion proﬁles of various service providers is used to select instances of a ser-vice that are co-located with the client at the required time and least likely to disconnect. A system for constructing the knowledge base is presented in this paper, along with the implementation details and the algorithm used to deter-mine the service usage pattern.
Sen, Rohan; Handorean, Radu; Roman, Gruia-Catalin; and Hackmann, Gregory, "Knowledge-driven Interactions With Services Across Ad Hoc Networks" Report Number: WUCSE-2004-33 (2004). All Computer Science and Engineering Research.