Antennas Height How To Calculate Optimal Omni Antenna Mast Height For Best Coverage?

How to calculate optimal omni antenna mast height for best coverage? - antennas height

There is an omni-directional antenna --
2.4Ghz,
15.4dBi,
-1,5:1 ROS,
Polarization is vertical,
Power supply 100 Watt
Impedance of 50 ohms

How is the height of the mast on the best coverage of the wireless network with this antenna to calculate?