A Way to Reduce ICI of Multi-user MIMO-OFDM System with Precoding

Author

Wang, Jingjing ; Xie, Xianzhong ; Zhang, Qian

Author_Institution

MII Key Lab. on Comput. Network & Commun., Chongqing Univ. of Posts & Telecommun., Chongqing

fYear

2009

fDate

22-24 Jan. 2009

Firstpage

134

Lastpage

137

Abstract

In this paper we research that using the precoding based on signal-to-leakage-and-noise ratio (SLNR) to reduce the inter-carrier interference (ICI) of multi-user multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system. Firstly, a model of MIMO-OFDM with precoding system is introduced. Based on the model we get the algorithm of the precoding matrix. Through simulation and analysis, the ICI of MIMO-OFDM system with precoding is reduced, otherwise, the complexity of the receiver does not increase, so the method adapts to the downlink especially.

Keywords

MIMO communication; OFDM modulation; multiuser detection; intercarrier interference; multiuser MIMO-OFDM system; multiuser multiple-input multiple-output; orthogonal frequency division multiplexing system; precoding system; signal-to-leakage-and-noise ratio; Bandwidth; Computer networks; Downlink; Frequency conversion; MIMO; Mobile antennas; Multiple access interference; OFDM modulation; Receiving antennas; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Control, 2009. ICACC '09. International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-3330-8

Type

conf

DOI

10.1109/ICACC.2009.59

Filename

4777323