TY  - JOUR
SP  - 4563 
A1  - Mirza, J
A1  - Zheng, G
A1  - Wong, KK
A1  - Lambotharan, S
A1  - Hanzo, L
KW  - High definition video
KW  -  Training
KW  -  Array signal processing
KW  -  MIMO communication
KW  -  Data communication
KW  -  Numerical models
KW  -  Electronic mail
IS  - 10
SN  - 0090-6778
EP  - 4577
AV  - public
TI  - On the Performance of Multiuser MIMO Systems Relying on Full-Duplex CSI Acquisition
UR  - https://doi.org/10.1109/TCOMM.2018.2840694
ID  - discovery10051646
VL  - 66
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
JF  - IEEE Transactions on Communications
Y1  - 2018/10//
N2  - In this paper, we propose a combined full duplex (FD) and half duplex (HD) based transmission and channel acquisition model for open-loop multiuser multiple-input multipleoutput (MIMO) systems. Assuming residual self interference (SI) at the BS, the idea is to utilize the FD mode during the uplink (UL) training phase in order to achieve simultaneous downlink (DL) data transmission and UL CSI acquisition. More specifically, the BS begins serving a user when its CSI becomes available, while at the same time, it also receives UL pilots from the next scheduled user. We investigate both zero-forcing (ZF) and maximum ratio transmission (MRT) MIMO beamforming techniques for the DL data transmission in the FD mode. The BS switches to the HD mode once it receives the CSI of all users and it employs ZF beamforming for the DL data transmission until the end of the transmission frame. Furthermore, we derive closedform approximations for the lower bounded ergodic achievable rate relying on the proposed model. Our numerical results show that the proposed FD-HD transmission and channel acquisition approach outperforms its conventional HD counterpart and achieves higher data rates.
ER  -