1. COVERING POINTS OF INTEREST WITH MOBILE SENSORS
ABSRACT:
The coverage of Points of Interest (PoI) is a classical requirement in mobile wireless
sensor applications. Optimizing the sensors self-deployment over a PoI while maintaining the
connectivity between the sensors and the base station is thus a fundamental issue. This paper
addresses the problem of autonomous deployment of mobile sensors that need to cover a
predefined PoI with a connectivity constraint. In our algorithm, each sensor moves toward a
PoI but has also to maintain the connectivity with a subset of its neighboring sensors that are
part of the Relative Neighborhood Graph (RNG). The Relative Neighborhood Graph
reduction is chosen so that global connectivity can be provided locally. Our deployment
scheme minimizes the number of sensors used for connectivity thus increasing the number of
monitoring sensors. Analytical results, simulation results and practical implementation are
provided to show the efficiency of our algorithm.