Decision aided joint compensation of clipping noise and nonlinearity for MIMO-OFDM systems

Author

Yang, Shouyi ; Xi, Jiangtao ; Mu, Xiaomin

Author_Institution

Fac. of Inf. Eng., Zhengzhou Univ., Henan, China

Volume

1

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

725

Lastpage

728

Abstract

In this paper, we propose a new iterative approach to compensate the nonlinearity and clipping noise in multi-input multi-output orthogonal frequency division multiplexing (MlMO-OFDM) system with nonlinear channel. The proposed approach consists of two stages. Firstly a decision aided method is proposed to eliminate the nonlinearity introduced by high power transmit amplifier (HPA). Then this improved decision observations are employed to achieve the clipping noise compensation. The effectiveness of the proposed approach has been verified by computer simulations.

Keywords

MIMO systems; OFDM modulation; amplifiers; data communication; iterative methods; MIMO-OFDM systems; clipping noise; decision aided joint compensation; iterative approach; multiinput multioutput orthogonal frequency division multiplexing; nonlinear channel; power transmit amplifier; Bit error rate; Block codes; Computer simulation; Degradation; High power amplifiers; MIMO; Noise cancellation; OFDM; Peak to average power ratio; Telecommunication computing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on

Print_ISBN

0-7803-9538-7

Type

conf

DOI

10.1109/ISCIT.2005.1566956

Filename

1566956