Wi-Fi Bat–Echolocating a Device Connected to a Wi-Fi Transmitter Using Wi-Fi Signals
Publicerad
Typ
Examensarbete på kandidatnivå
Bachelor Thesis
Bachelor Thesis
Program
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
This thesis presents the design of a Wi-Fi sensing system that is capable of
estimating the distance between two devices using Wi-Fi signals. The system
leverages channel state information (CSI) extracted from a network interface
controller (NIC) as well as the received signal strength indicator (RSSI). In this
system, a Raspberry Pi equipped with a compatible NIC served as the receiver
and a transmitter which transmitted Wi-Fi packets at varying distances. The
thesis also discusses the limitations of such a system as signal noise and environmental
multipath effects, and reflects on the ethical implications of Wi-Fi-based
sensing with regard to privacy.