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

fYear

2014

fDate

19-23 Jan. 2014

Firstpage

55

Lastpage

57

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium (RWS), 2014 IEEE

Conference_Location

Newport Beach, CA

Print_ISBN

978-1-4799-2298-7

Type

conf

DOI

10.1109/RWS.2014.6830140

Filename

6830140