GREEN: A Configurable and Re-configurable Publish-Subscribe Middleware for Pervasive Computing

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GREEN: A Configurable and Re-configurable Publish-Subscribe Middleware for Pervasive Computing

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by Thirunavukkarasu Sivaharan , Gordon Blair , Geoff Coulson

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@MISC{Sivaharan_green:a,
    author = {Thirunavukkarasu Sivaharan and Gordon Blair and Geoff Coulson},
    title = {GREEN: A Configurable and Re-configurable Publish-Subscribe Middleware for Pervasive Computing},
    year = {}
}

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Abstract

Abstract. In this paper we present GREEN a highly configurable and reconfigurable publish-subscribe middleware to support pervasive computing applications. Such applications must embrace both heterogeneous networks and heterogeneous devices: from embedded devices in wireless ad-hoc networks to high-power computers in the Internet. Publish-subscribe is a paradigm well suited to applications in this domain. However, present-day publish-subscribe middleware does not adequately address the configurability and reconfigurability requirements of such heterogeneous and changing environments. As one prime example, current platforms can-not be configured to operate in diverse network types (e.g. infrastructure based fixed networks and mobile ad-hoc networks). Hence, we present the design and implementation of GREEN (Generic & Re-configurable EvEnt Notification service), a next generation publish-subscribe middleware that addresses this particular deficiency. We demonstrate the configurability and re-configurability of GREEN through a worked example: consisting of a vehicular ad-hoc network for safe driving coupled with a fixed wide area network for vehicular traffic monitoring. Finally, we evaluate the performance of this highly dynamic middleware under different environmental conditions. 1

Keyphrases

pervasive computing re-configurable publish-subscribe middleware wireless ad-hoc network different environmental condition heterogeneous device pervasive computing application heterogeneous network current platform vehicular traffic monitoring safe driving generic re-configurable event notification service fixed wide area network next generation publish-subscribe middleware dynamic middleware present-day publish-subscribe middleware mobile ad-hoc network reconfigurable publish-subscribe middleware vehicular ad-hoc network high-power computer particular deficiency prime example reconfigurability requirement worked example diverse network type

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