OMG: An ontology-based group mobility generator

We present an ontology based group mobility model generator, OMG, which especially focuses on the user convenience and group mobility. Simulation models play a significant role in designing and evaluating network protocols. In such a process, it is important to use a proper mobility model for valid and practical results. However, it can be a daunting task for a protocol designer to understand the details of various mobility models, then choose, implement, and tune an appropriate mobility model. In this work, we develop a tool that provides a group mobility model based on the user´s demand in an intuitive and convenient manner, using a semantic-based approach. We first extract characteristics from various group mobility models, and then build an efficient and flexible framework that can yield an mobility model satisfying a user´s demand. An ontology is defined that enables associations among extracted characteristics. A user just needs to specify the demand with intuitive properties in order to obtain a network simulator code of a mobility model that satisfies the user´s demand. OMG facilitates mobile network simulations with efficient support of group mobility models in order for users to create a mobility model without having to handle the details.