A sensor data collection method under a system constraint using hierarchical Delaunay overlay network

In this paper, we propose a novel sensor data collection method that forwards messages to the nodes which are suitable for reconstructing of the sensor data distribution by extending hierarchical Delaunay overlay network (HDOV). By our proposal method, contour lines map can be reconstructed according to the requirements, satisfying a specified system constraint of the number of sensor data. The key idea of the method is allocation of the number of sensor data to be collected according to the layered structure of HDOV. The simulation result shows that our proposal can reconstruct contour lines map which focuses on the characteristic point or not, satisfying the specified system constraint.