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In this paper, the authors compare and analyze six different path loss models (i.e. FSPL model, COST 231 Hata model, ECC-33 model, SUI model, Ericsson model and COST 231 Walfish-Ikegami model) in different receiver antenna heights in urban, suburban and rural environments in NLOS condition for WiMAX. They consider Bangladesh as three regions such: Urban, Suburban, flat area and use operating frequency 2.5 GHz. Their observation shows that none of a single propagation model is well suited for all environments. SUI model showed the lowest prediction in urban environment. ECC-33 model showed the heights path loss and also showed huge fluctuations due to change of receiver antenna height.
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