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In wireless communication, the Hata model for urban areas, also known as the ''Okumura–Hata model'' for being a developed version of the Okumura model, is the most widely used radio frequency propagation model for predicting the behaviour of cellular transmissions in built up areas. This model incorporates the graphical information from Okumura model and develops it further to realize the effects of diffraction, reflection and scattering caused by city structures. This model also has two more varieties for transmission in suburban areas and open areas. Hata Model predicts the total path loss along a link of terrestrial microwave or other type of cellular communications. == Applicable to/under conditions == This particular version of the Hata model is applicable to the radio propagation within urban areas. This model is suited for both point-to-point and broadcast transmissions and it is based on extensive empirical measurements taken. PCS is another extension of the Hata model. The Walfisch and Bertoni model is further advanced. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hata model for urban areas」の詳細全文を読む スポンサード リンク
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