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In this paper, we explore the implementation of a smart monitoring system over a wireless sensor network, with particular emphasis on the creation of a solid routing infrastructure through the Routing Protocol for Low- power and lossy networks (RPL), whose definition is currently being discussed within the IETF ROLL working group. Our framework is based on a very lightweight implementation of the REpresentational State Transfer (REST) paradigm by means of a binary web service, and on a publish/subscribe mechanism, whereby every node makes a set of resources (e.g., environmental sensors) available to interested parties. Limited to the effectiveness in creating the routing structure, we provide a performance evaluation of RPL through an experimental campaign, aimed at showing how RPLs key parameters affect the performance of routing in a smart grid scenario.
Date of Conference: 4-6 Oct. 2010