Knowing the levels of the distribution patterns of the field strength in urban environments can correctly determine the number of base stations required to provide high-quality mobile communication. High quality of mobile communications, in turn, creates the best conditions for a quick payback on the development of a mobile network. In this speech, In this speech, Okumura-Hata expressions will be presented for calculating the attenuation of the field strength of mobile communication stations in the megapolis on the example of the capital of Uzbekistan - Tashkent in the frequency bands 900 and 1800 MHz. Expressions allow to take into account factors that affect the signal attenuation in detail.
Keywords: Attenuation, Field strength Of Mobile Communications, Urban architecture, Base Stations, Effective Conductivity, Frequency Bands 900 and 1800 MHz.
Alisher Shakhobiddinov is associate professor of TV and broadcasting systems department of Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi where he has been since 2001. From 2013 to 2014 he served as Chair of TV and broadcasting systems Department.
He received a B.S. from Tashkent Electrotechnical Institute of Communication (TUIT since 2002) in 2001, and an M.S. from the Tashkent University of Information Technologies. He received his PhD. in Technics from the Tashkent University of Information Technologies in 2018.
His research interests span radio wave propagation in metropolis, signal weakening in long car/train tunnels, VHF-UHF antennas, and influence of electromagnetic field radiation on living organisms.
He is co-author of two textbooks “Bases of radiotechnics and antennas” Volume II, “Radiowave propagation and antenna-feeder devices” prepared for students of technical Colleges.
Since February 2019 he is a Dean of Telecommunication technologies faculty at Tashkent University of Information Technologies named after Muhammad Al-Khwarizmi.