Multi-user MIMO linear precoding schemes in OFDM systems

Author

Liu, Peng ; Wu, Mu Qing ; Xu, Chun Xiu ; Zheng, Feng

Author_Institution

Sch. of Inf. & Telecommun. Eng., Beijing Univ. of Post & Telecommun., Beijing, China

Volume

3

fYear

2010

fDate

9-11 July 2010

Firstpage

528

Lastpage

531

Abstract

In this paper, several multi-user multiple-input multiple-output (MU-MIMO) linear precoding schemes with both perfect and imperfect channel state information (CSI) for downlink transmission are proposed. Compared to nonlinear precoding schemes which need perfect CSI to achieve the channel capacity, we focus on systems which are restricted to use only linear precoding schemes due to complexity constraints and limited feedback. The limited feedback and some improvement technologies have also been introduced. The proposed MU-MIMO schemes extend the point-to-point single-user precoding to point-to-multipoint multi-user precoding.

Keywords

MIMO communication; OFDM modulation; precoding; OFDM systems; channel state information; complexity constraints; downlink transmission; multiuser MIMO linear precoding schemes; multiuser multiple input multiple output system; point-to-multipoint multiuser precoding; point-to-point single user precoding; Antennas; Downlink; Radio access networks; Variable speed drives; Wireless communication; MU-MIMO; limited feedback; linear precoding; multi-user interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5537-9

Type

conf

DOI

10.1109/ICCSIT.2010.5564646

Filename

5564646