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Fixed Wireless Access (FWA) networks based on WIMAX technology provide efficient packet radio interface enabling high data transmission rates. The accurate prediction of path losses is a crucial element in the first step of network planning. This paper compares various path loss models for mobile as well as fixed wireless systems like WIMAX. This paper begins the introduction to path loss in wireless communication, then various path loss models (Cost-Hata, Erceg, Dual-slope, SUI, Macro model, ECC- 33, Hata-Okumura etc) have been compared in rural environment at 3.5 GHz range.
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