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

Authors

Shouyi Yang, Zhengzhou University
Jiangtao Xi, University of WollongongFollow
Xiaomin Mu, Zhengzhou UniversityFollow

RIS ID

13256

Publication Details

Xi, J., Yang, S. & Mu, X. (2005). Decision aided joint compensation of clipping noise and nonlinearity for MIMO-OFDM systems. In K. Wong (Eds.), International Symposium on Communications and Information Technologies (pp. 701-704). CD-ROM: IEEE.

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.