Title :
Development of multiuser MIMO testbed adopting Tomlinson-Harashima Precoding and limited CSI feedback
Author :
Matsumoto, Tad ; Hatakawa, Yasuyuki ; Kitagawa, Koichiro ; Konishi, Satoshi
Author_Institution :
KDDI R&D Labs., Saitama, Japan
Abstract :
This paper presents the development of an 8-by-2 real-time multiuser-multiple input multiple output (MU-MIMO) testbed adopting Tomlinson-Harashima Precoding (THP) and limited channel state information (CSI) feedback. In this paper, we present an overview of the MU-MIMO testbed and show the implementation validity of the testbed. The experimental results show that the testbed achieves up to 2.4 dB degradation of BLER compared to the floating point computer simulation results.
Keywords :
MIMO communication; feedback; precoding; wireless channels; BLER; THP; Tomlinson-Harashima precoding; channel state information; floating point computer simulation; limited CSI feedback; multiuser MIMO testbed; multiuser-multiple input multiple output testbed; Computer simulation; Degradation; Hardware; MIMO; Radio frequency; Transmitting antennas; Hardware implementation; Limited CSI feedback; Multiuser MIMO; Tomlinson-Harashima precoding;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2014 IEEE
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4799-2298-7
DOI :
10.1109/RWS.2014.6830140
