Table 3.

Comparison of parameters for single frequency CI, FI and multi-frequency ABG path loss models for millimeter wave in indoor environments for LOS scenarios at different frequencies.

Ref	Frequency (GHz)	Environment	Scenario	Polarization	Distance range (m)	Model	PLE ($\mathit{\alpha }$)	$\mathit{\beta }$$\left(\mathrm{d}\mathrm{B}\right)$	$\mathit{\sigma }$$\left(\mathrm{d}\mathrm{B}\right)$	$\mathit{\gamma }$
[18, 20]	15	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.90	—	2.40	—
						FI	63.50	1.10	2.90	—
						ABG	—	—	—	—
[18, 20]	14	LOS	Indoor Corridor	V–V	2.00–24.00	CI	1.37	—	2.19	—
						FI	55.41	1.37	2.19	—
[18, 20]	18	LOS	Indoor Corridor	V–V	2.00–24.00	CI	1.58	—	1.53	—
						FI	57.48	1.59	1.53	—
[46]	22	LOS	Indoor Corridor	V–V	2.00–24.00	CI	1.66	—	1.31	—
						FI	61.04	1.50	1.12	—
[46]	6.5	LOS	Indoor Corridor	V–V	1.00–40.00	CI	1.00	—	3.10	—
						FI	40.70	1.00	3.10	—
						ABG	1.10	15.70	3.20	3.10
[46]	6.5	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.30	—	2.30	—
						FI	44.30	1.10	2.20	—
						ABG	—	—	—	—
[46]	10.5	LOS	Indoor Corridor	V–V	1.00–40.00	CI	1.00	—	2.50	—
						FI	45.40	1.30	2.30	—
						ABG	1.10	15.70	3.20	3.10
[46]	10.5	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.20	—	2.00	—
						FI	48.50	1.40	2.00	—
						ABG	—	—	—	—
[46]	15	LOS	Indoor Corridor	V–V	1.00–40.00	CI	1.40	—	2.80	—
						FI	51.90	1.40	2.80	—
						ABG	1.10	15.70	3.20	3.10
[46]	19	LOS	Indoor Corridor	V–V	1.00–40.00	CI	0.60	—	2.20	—
						FI	56.60	0.90	2.10	—
						ABG	1.10	15.70	3.20	3.10
[46]	19	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.40	—	3.00	—
						FI	63.30	1.10	2.80	—
						ABG	—	—	—	—
[46]	28	LOS	Indoor Corridor	V–V	1.00–40.00	CI	0.90	—	2.10	—
						FI	58.70	1.20	2.00	—
						ABG	1.10	15.70	3.20	3.10
[46]	28	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.80	—	3.80	—
						FI	69.10	1.10	3.10	—
						ABG	—	—	—	—
[46]	38	LOS	Indoor Corridor	V–V	1.00–40.00	CI	0.80	—	2.30	—
						FI	67.90	0.90	2.30	—
						ABG	1.10	15.70	3.20	3.10
[46]	38	LOS	Indoor Corridor	V–H	1.00–40.00	CI	1.10	—	2.70	—
						FI	70.00	1.00	2.70	—
						ABG	—	—	—	—
[47]	40	LOS	Indoor Corridor	V–V	2.00–2.70	CI	1.80	—	4.70	—
[48]	4.5	LOS	Indoor Office	V–V	1.00–22.70	CI	0.70	—	3.14	—
						FI	41.45	1.32	1.79	—
						ABG	0.43	1.56	0.24	4.83
[48]	4.5	LOS	Indoor Office	V–H	1.00–22.70	CI	1.13	—	2.63	—
[48]	4.5	LOS	Indoor Office	V-Omni	1.00–22.70	CI	2.31	—	6.64	—
						FI	71.0	0.88	1.79	—
						ABG	0.90	35.77	0.19	3.02
[48]	28	LOS	Indoor Office	V–V	1.00–22.70	CI	0.92	—	2.18	—
						FI	60.10	1.06	2.15	—
						ABG	0.43	1.56	0.24	4.83
[48]	28	LOS	Indoor Office	V–H	1.00–22.70	CI	3.87	—	7.83	—
[48]	28	LOS	Indoor Office	V-Omni	1.00–22.70	CI	2.49	—	4.38	—
						FI	68.23	1.77	3.97	—
						ABG	0.90	35.77	0.19	3.02
[48]	38	LOS	Indoor Office	V–V	1.00–22.70	CI	2.29	—	5.6	—
						FI	82.53	0.33	2.57	—
						ABG	0.43	1.56	0.24	4.83
[48]	38	LOS	Indoor Office	V–H	1.00–22.70	CI	4.81	—	12.67	—
[48]	38	LOS	Indoor Office	V-Omni	1.00–22.70	CI	3.25	—	5.27	—
						FI	83.79	1.12	2.04	—
						ABG	0.90	35.77	0.19	3.02
						FI	61.04	1.50	1.12	—
[59]	26	LOS	Indoor office (Horn Antenna)	V–V	1.00–50.00	CI	1.46	—	4.94	—
						FI	62.12	1.36	4.94	—
						ABG	30.51	1.32	4.81	2.25
[59]	32	LOS	Indoor office (Horn Antenna)	V–V	1.00–50.00	CI	1.35	—	4.54	—
						FI	65.84	1.13	4.94	—
						ABG	30.51	1.32	4.81	2.25
[59]	39	LOS	Indoor office (Horn Antenna)	V–V	1.00–50.00	CI	1.53	—	4.55	—
						FI	63.19	1.61	4.54	—
						ABG	30.51	1.32	4.81	2.25
[59]	26	LOS	Indoor office (Omni Antenna)	V–V	1.00–50.00	CI	1.34	—	4.49	—
						FI	64.78	1.05	4.43	—
						ABG	54.50	1.14	4.41	0.66
[59]	32	LOS	Indoor office (Omni Antenna)	V–V	1.00–50.00	CI	1.35	—	4.30	—
						FI	63.50	1.29	4.30	—
						ABG	54.50	1.14	4.41	0.66
[59]	39	LOS	Indoor office (Omni Antenna)	V–V	1.00–50.00	CI	1.14	—	4.25	—
						FI	65.86	1.03	4.24	—
						ABG	54.50	1.14	4.41	0.66
[63]	28	LOS	Indoor Office	V–V	4.10–21.30	CI	1.10	—	1.80	—
						FI	1.20	60.40	1.80	—
[63]	73	LOS	Indoor Office	V–V	4.10–21.30	CI	1.30	—	2.40	—
						FI	0.50	77.90	1.40	—
[63]	73.5	LOS	Indoor Office	V–V	4.10–21.30	CI	1.20	—	2.30	—
						ABG	0.90	26.80	1.80	2.60