Performance Analysis of 3D Massive MIMO Cellular Systems with Collaborative Base Station

Table 1

Value of parameter in simulation.

Parameter	Details	Value
𝐿	Number of cells	3
𝑅cell	Radius of sector	50 m
𝑟building	Radius of building	10 m
ℎBS	Height of BS	30 m
ℎUT	Height of UT	1.5 m
ℎfloor	Height of floor	5 m
𝜇	Shadowing mean	4 dB
𝜎	Shadowing standard deviation	4 dB
𝜐	Path-loss exponent	4
𝐹	Number of floors	3
𝜑^tw	Wall penetration loss	0.01 (−20 dB)
𝜑^in	Inside loss	0.5𝑑2D-in
𝐴𝑚	Azimuth front-to-back ratio	30 dB
𝜙3dB	Horizontal HPBW	70°
𝜃3dB	Vertical HPBW	7°
SLA𝑣	Side lobe attenuation	30 dB
𝜙^orn	azimuth angles	0°, 120°, −120°
𝑅𝑒/𝑐	UT edge-cell to center-cell ratio	1/3
𝛽^𝑚	Mechanical tilt angle	0°

^∗𝑑_2D-in denotes the distance from the wall to the indoor UT, which is given in [23].