Communication Energy Aware Sensor Selection in IoT Systems

To prolong the IoT system lifetime, a system should minimize the energy comsumption on devices. The RF communication energy cost is dependent on the communication distance. This paper presents a communication distance aware methodology for mapping and deploying IoT applications on sensor devices in a physical environment. Given a flow-based service process, WuKong will select and set up the most efficient configuration for the process. The sensor selection methodology reported in this paper takes the communication distance into consideration in order to minimize the communication energy consumption. We define a quadratic programming based problem model, and present algorithms based on the Integer Linear Programming (ILP) model. We show the algorithm performance by simulation.