1. Medbo, J. (1998). Radio wave propagation characteristics at 5 GHz with modeling suggestions for HIPERLAN/2. Etsi Bran 3eri074A.
2. ITU-R, Report M.2233. Examples of technical characteristics for unmanned aircraft control and non-payload communications links. 11/2011.
3. ITU: International Telecommunication Union. Guidelines for the evaluation of Radio Transmission Technologies (RTTs) for IMT-2000, ITU-R Recommendation M.1225, 1997.
4. http://www.tecplot.com
5. 4G Americas’ 5G Spectrum Recommendations, August 2015.