PAPR reduction of OFDM using selected mapping, modified RA codes and clipping

Author

Carson, Neil ; Gulliver, Aaron T.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

2

fYear

2002

fDate

2002

Firstpage

1070

Abstract

The demand for high speed wireless communications is constantly increasing. Orthogonal frequency division multiplexing (OFDM) is a modulation technique that can be used to address this demand as it performs well in fading channels. However, OFDM has one significant drawback, the potential for a high peak-to-average power ratio (PAPR). This paper presents a novel approach to reducing the PAPR using a modified repeat-accumulate (RA) code and signal clipping. We show that it is possible to reduce the probability of the PAPR exceeding 6dB to 1% with a BER of 10^-5 at an SNR of 5.8dB.

Keywords

OFDM modulation; channel coding; error statistics; fading channels; BER; OFDM modulation; PAPR reduction; fading channels; high speed wireless communications; modified RA codes; modified repeat-accumulate code; orthogonal frequency division multiplexing; peak-to-average power ratio; probability; selected mapping; signal clipping; Bandwidth; Bit error rate; Fading; Frequency division multiplexing; OFDM modulation; Peak to average power ratio; Robustness; Scholarships; Telephony; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th

ISSN

1090-3038

Print_ISBN

0-7803-7467-3

Type

conf

DOI

10.1109/VETECF.2002.1040767

Filename

1040767