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Most of the existing service discovery approaches that are designed for tourism applications are based on having a fixed centralized or distributed service provider that is accessible to a group of service clients at any given time. This paper presents a hybrid decentralized service discovery approach designed for indoor tourism applications. The approach is mainly based on exploiting the ability of service clients to form an ad hoc network, in which services can be shared among neighbour nodes. The presented approach has been implemented as hybrid proximity based decentralized service discovery model. The effectiveness of the presented approach is illustrated by a number of simulation experiments. Results showed an enhancement in the service availability and scalability. Moreover, the response time and service discovery failure rates are minimized.
Date of Conference: 24-25 Sept. 2007