Limited Feedback for 3D Massive MIMO under 3D-UMa and 3D-UMi Scenarios

Table 1

Simulation parameters configuration.

Parameters	Settings
Bandwidth	10 MHz
Antenna element interval	0.5λ both in horizontal and vertical directions
Carrier frequency	2 GHz
The number of users per cell	10
User distribution	Refer to [10]
User speed	3 km/h
Traffic model	Full buffer
Schedule	Proportional fair
Channel estimation	Ideal
Receiver	MMSE
HARQ	The maximal number of retransmissions is 4
Wrapping method	Geographical distance based