A Low Complexity PAPR Reduction Technique for STBC MIMO-OFDM System

Author

Gao, Jing ; Wang, Jinkuan ; Wang, Yun

Author_Institution

Dept. of Inf. Sci. & Eng., Northeastern Univ., Shenyang

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

109

Lastpage

112

Abstract

Selective mapping algorithm is proposed to reduce the peak-to-average power ration (PAPR) in MIMO-OFDM system. It is proved that the conjugate symbols on two antennas have the same PAPR property with orthogonal space-time block coded (STBC). By using the characteristic, the computational complexity cost and the side information (SI) is significantly reduced compared with the concurrent SLM algorithm. Simulation results demonstrate that the performance of the proposed algorithm outperforms the conventional concurrent SLM algorithm.

Keywords

MIMO communication; OFDM modulation; block codes; communication complexity; space-time codes; STBC MIMO-OFDM system; computational complexity; concurrent SLM algorithm; conjugate symbols; low complexity PAPR reduction technique; orthogonal frequency division multiplexing; orthogonal space-time block code; peak-to-average power ration; selective mapping algorithm; side information; Computational complexity; Computational efficiency; Information science; MIMO; OFDM modulation; Partial transmit sequences; Peak to average power ratio; Power engineering and energy; Signal processing algorithms; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.34

Filename

4339809