A new method for peak-to-average power ratio reduction in MIMO-OFDM system

Author

Li, Guangyuan ; Yang, Shouyi ; Mu, Xiaomin ; Qi, Lin

Author_Institution

Zhengzhou Univ., Zhengzhou

fYear

2007

fDate

Nov. 28 2007-Dec. 1 2007

Firstpage

614

Lastpage

617

Abstract

An improved method based on cross-antenna rotation and inversion (CARI) is presented for MIMO-OFDM peak-to-average power ratio (PAPR) reduction. Firstly, an optimal scheme is proposed for PAPR reduction, by employing the degrees of freedom of multiple antennas. Then two sub-optimal schemes are proposed to reduce computational complexity by transforming the subblock successively and setting a threshold. Simulation results have shown that the proposed suboptimal scheme, termed adaptive subblock successive transform (ASST) slightly outperforms the successive suboptimal CARI (SS-CARI) scheme but with remarkably lower computational complexity.

Keywords

MIMO communication; OFDM modulation; antenna arrays; computational complexity; MIMO-OFDM system; adaptive subblock successive transform; antenna array; computational complexity; cross-antenna rotation and inversion; optimal scheme; peak-to-average power ratio reduction; Bit error rate; Computational complexity; Computational modeling; Fading; MIMO; OFDM; Peak to average power ratio; Power engineering and energy; Signal processing; Transmitting antennas; MIMO; OFDM; cross-antenna rotation and inversion; peak-to-average power ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-1447-5

Electronic_ISBN

978-1-4244-1447-5

Type

conf

DOI

10.1109/ISPACS.2007.4445962

Filename

4445962