Parameter optimization for hovering multi-rotor drones-based free-space optical links.

Multi-rotor (MR) Drones have recently emerged as a viable method for creating flexible free-space optical (FSO) connections. In this study, we look at how precise parameters optimization can be used to evaluate the benefits of using MR Drones for such nanometer links, with consideration of the combined effect of atmospheric turbulence along with pointing error factor h_p. The related parameters of h_p are the connection distance d and pointing error angle (PEA) θ. In contrast to past studies on the subject, this one increased the connection distance d between drones swarm for high values PEAs that had been got high Bit Error Rate (BER). The system consists of two channels type: Single Input–Single Output (SISO) and Multiple Input–Single Output (MISO), and was simulated using MATLAB 2020. The results showed that for PEA θ= 10 - 3 and 10 - 2 rad, the connection distance d increased from 5 to 20 percent per one centimeter increasing in the receiver diameter D_r, and for PEA θ= 10 - 1 rad, the connection distance d increased few meters; therefore, it is not recommended to increase the receiver diameter D_r. [ABSTRACT FROM AUTHOR]