Wi-Fi Direction Finding with Frequency-Scanned Antenna and Channel-Hopping Scheme
IEEE Sensors Journal
- Fecha: 01 January 2021
- ISSN: 15581748 1530437X
- Source Type: Journal
- DOI: 10.1109/JSEN.2021.3122232
- Document Type: Article
- Publisher: Institute of Electrical and Electronics Engineers Inc.
IEEEA novel and simple technique for Direction of Arrival (DoA) estimation in 802.11 Wi-Fi networks is proposed. It is based on the use of a dual-port frequency-beam scanning antenna, which is connected to single MIMO access point. By simply performing a channel hopping scheme and acquiring Received Signal Strength Information (RSSI) from each channel, the DoA can be estimated in a wide Field of View of 180° with a mean angular error of 5°. Due to its simplicity, a single commodity Wi-Fi AP can be used without the need of Channel State Information (CSI), or complex electronically reconfigurable or mechanically revolving antennas.