Novel Nakagami-$m$ Channel Model for G2A UAV Communications and Improved Security in Eavesdropping Dense Urban Environments

This work achieves improvement in secrecy capacity of values over 50 Mbit/s in the presence of a friendly airborne UAV where previously <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$C_{s}$</tex> was less than 10Mbit/s. In addition to the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$C_{s}$</tex> estimation, a study on improving the outage probability of the network was also conducted showing that 10 times lower outages are achieved where previously 60% of the time the system was suffering from such outages. Finally, a closed-form solution is also presented for a Nakagami-m fading channel derived by the properties of a physical system based on the latest 3GPP standard, using a simulation setup for a dense urban environment using a 20MHz bandwidth signal with a center frequency of 2.4GHz with devices distanced from 50 to 650 m, aided by a UAV and in the presence of a UAV eavesdropper.