Title :
Massive MIMO transmission by calibration circuit eliminating CSI feedback
Author :
Sasaki, Seishi ; Nishimori, Kentaro ; Yamada, Hiroyoshi
Author_Institution :
Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan
Abstract :
In massive MIMO transmission, implicit beam forming was studied to eliminate channel state information (CSI) feedback. However, it is essential to introduce the calibration circuit which compensates the difference of complex amplitudes between the transmitters and receivers. This paper presents the effectiveness of calibration circuit for massive MIMO transmission by the testbed which implements the calibration circuit, when considering the interference signal.
Keywords :
MIMO communication; calibration; feedback; CSI feedback elimination; calibration circuit; channel state information feedback elimination; massive MIMO transmission; Arrays; Calibration; Channel capacity; Directional couplers; MIMO; Radio transmitters; Receivers; Calibration; Channel State Information; Implicit beamforming; Massive MIMO;
Conference_Titel :
Electromagnetics (iWEM), 2014 IEEE International Workshop on
Conference_Location :
Sapporo
DOI :
10.1109/iWEM.2014.6963718
