Transmission Scheme with Limited Channel State Information Feedback for 3D MIMO System

Table 1

Simulation parameters.

Carrier frequency	2 GHz
Bandwidth	10 MHz
User speed	3 km/h
BS height	30 m
UE height	Uniform distributed between 1.5 m and 50 m
Cell radius	500 m
Channel model	3GPP 3D SCM
BS transmit power	46 dBm
Noise density	−174 dBm/Hz
Pathloss
UE number	10/30
MIMO assumption	SU-MIMO: rank 1 per UE; MU-MIMO: rank 1 per UE, two-user pairing and scheduling
Antenna element pattern	, ,
Antenna configuration	BS: UPA; Element interval: Row × col: 8 × 8; User: two antennas
Codebook	KPC; SAEC and proposed scheme: , PEBC: ,; Whole cell: , ,; , ,; 120° sector: , ,; , ,
Transmission period of long-term CSI-RS	100 TTIs
Transmission period of short-term CSI-RS	1 TTI
Feedback delay	6 ms
CSI-RS and DMRS channel estimation	Ideal
UE receiver assumption	MMSE