Frame Expansion Based Peak to Average Power Ratio Reduction in MIMO OFDM Systems

Author

Chen, Guoguang ; Ansari, Rashid

Author_Institution

Department of Electrical and Computer Engineering, University of Illinois at Chicago, 851 South Morgan Street, Chicago, IL, 60607, USA, Email: gchen@ece.uic.edu

fYear

2007

fDate

17-19 Oct. 2007

Firstpage

61

Lastpage

66

Abstract

The integration of Orthogonal Frequency Division Multiplexing (OFDM) into Multiple Input Multiple Output (MIMO) systems is regarded as a promising technology to provide high performance in fourth generation (4G) broadband wireless communication systems. However, the inherent drawback of large Peak-to-Average Power Ratio (PAPR) for OFDM carries over to MIMO systems. This paper examines the use of Erasure Pattern Selection (EPS) developed for Single Input Single Output (SISO) systems for the task of reducing PAPR in MIMO-OFDM systems. A MIMO-EPS scheme is proposed for minimizing the peak power value over all antennas, which is shown to produce a PAPR reduction gain around 1.5dB for 2 transmit antennas compared with the conventional MIMO-OFDM. The scheme is analyzed to show its significant performance advantages and lower computational complexity compared with an existing SeLective Mapping (SLM) scheme.

Keywords

Broadband communication; High power amplifiers; MIMO; OFDM; Peak to average power ratio; Receiving antennas; Redundancy; Transmitters; Transmitting antennas; Wireless communication; Erasure Pattern Selection; Frame Expansion; MIMO; OFDM; Peak to Average Power Ratio (PAPR);

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems, 2007 IEEE Workshop on

Conference_Location

Shanghai, China

ISSN

1520-6130

Print_ISBN

978-1-4244-1222-8

Electronic_ISBN

1520-6130

Type

conf

DOI

10.1109/SIPS.2007.4387518

Filename

4387518