“…(3.9) of [61], also see p.3040 in [20]). These include the close-in (CI) free space reference distance model (with a 1 m reference distance) [20], [28], [83], [84], the CI model with a frequency-weighted or height weighted path loss exponent (CIF and CIH models) [18], [19], [21], [24], and the floating intercept (FI) path loss model, also known as the ABG model because of its use of three parameters α, β, and γ [18], [20]- [22], [108], [114]. Standard bodies historically create omnidirectional path loss models with the assumption of unity gain antennas for generality.…”