Saving energy in WSNs with beamforming

Energy efficiency is a critical issue in Wireless Sensor Networks (WSNs) as sensor nodes has a limited power supply. In order to address this issue, this paper elaborates on using beamforming to perform more efficient wireless communications. The results with different randomly deployed WSNs considering different energy-consuming sensors have shown that this technique allows the lifetime of the sensors to be increased substantially (more than one order of magnitude).