Wireless Sensing (WS) using Free-Space Optics
(FSO) is an evolving technology that has several applications
in diverse Cyber-Physical Systems. FSO communication has
several advantages over conventional wireless communication
such as avoiding typical radio interference faced by conventional
wireless communication links, no or low-cost spectrum license
fees, depending on the countries’ regulations, and being easy
and fast to deploy, especially in critical conditions such those
encountered in defence applications and scenarios. In addition,
since FSO requires a line-of-sight communication link between
the transmitter and the receiver, it can be used to achieve
long-distance communication links while being secured. In this
paper, an experimental testbed utilizing off-the-shelf hardware
component and open-source software tools is described and used
to evaluate FSO network communication technology. Further, the
theoretical analysis for an FSO system is provided. Such a testbed
can be used to advance research in FSO and enable researchers
to assess FSO performance under different network conditions
and scenarios.

Free Space Optics (FSO); Performance Analysis; Remote Wireless Sensing Technologies; Wireless Communication