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The Hata model is a radio propagation model for predicting the path loss of cellular transmissions in exterior environments, valid for microwave frequencies from 150 to 1500 MHz. It is an empirical formulation based on the data from the Okumura model , and is thus also commonly referred to as the Okumura–Hata model . [ 1 ]
The Okumura model is a radio propagation model that was built using data collected in the city of Tokyo, Japan. The model is ideal for using in cities with many urban structures but not many tall blocking structures. The model served as a base for the Hata model. The Okumura model was built into three modes: for urban, suburban and open areas ...
Path loss is a major component in the analysis and design of the link budget of a telecommunication system. This term is commonly used in wireless communications and signal propagation . Path loss may be due to many effects, such as free-space loss , refraction , diffraction , reflection , aperture - medium coupling loss , and absorption .
The Great Man-Made River Project (GMRP) was conceived in the late 1960s and work on the project began in 1984. The project's construction was divided into five phases. The first phase required 85 million m³ of excavation and was inaugurated on 28 August 1991. The second phase (dubbed First water to Tripoli) was inaugurated on 1 September 1996.
It is the most often cited of the COST 231 models (EU funded research project ca. April 1986 – April 1996), [1] also called the Hata Model PCS Extension. This model is the combination of empirical and deterministic models for estimating path loss in an urban area over frequency range of 800 MHz to 2000 MHz. [2]
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A statistical propagation model (e.g. Hata, COST-231 Hata or Erceg-Greenstein) is used to approximate the coverage area of the planned sites and to eventually determine how many sites are required. The statistical propagation of the model does not include terrain effects and has a model for each type of environment (rural, urban, suburban, etc.).
The treated potable water will then be distributed to the two refuge camps and to the rural and urban communities in Isingiro District. [5] This project is affiliated with another ongoing government undertaking by the same ministry; the Masaka–Mbarara Water Supply and Sanitation Project. The Kagera River will serve as the raw water source for ...