Optimal Wireless Sensor Network Design for Efficient Energy Utilization

This paper presents a study of the optimal network design for efficient energy utilization in continuous data-gathering Wireless Sensor Networks (WSNs). We examine the problem of minimizing the network cost through the minimum number of relay-station installation. We model the network design problem as a mixed integer linear programming. Our key contribution is that the proposed model not only guarantee the network lifetime but also ensure the radio communication between the energy-limited sensor nodes so that the network can guarantee packet delivery from sensor nodes to the base station. Numerical experiments were conducted to evaluate and demonstrate the effectiveness of the proposed method.