Energy-efficient Sensor Networking with Electronically Switched Directional Antennas
Wireless Sensor Networks (WSNs) are small, untethered computing devices equipped with embedded sensors and actuators. Wireless sensor networks can be deployed much more easily than traditional wired sensors, and are able to coordinate and self-organize so that some high-level application goal is achieved.
Energy-efficiency is one of the main concerns of sensor networking since most sensor networks are battery-driven and hence battery consumption determines the lifetime of the sensor network. Another major concern is robustness, since early deployment of sensor networks had very poor data delivery rates.
Most deployed wireless sensor networks consist of sensor nodes with omnidirectional antennas that radiate energy uniformly in all directions. In contrast, directional (diversity) antennas emit energy in a limited portion of space. Moreover, electronically switched directional (ESD) antennas are able to dynamically control the direction of emission.
This project is a joint collaboration project between the UNO group at Uppsala University and Universidad Nacional de Cuyo in Argentina.
The project tries to improve the energy-efficiency and robustness of wireless sensor networks using directional antennas.
This project has been funded by Vetenskapsrådet under the Swedish Research Links program