Presentation 2017-11-08
A low-complexity trellis shaping approach for PAPR reduction of OFDM signals
Junya Watanabe, Hideki Ochiai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to mitigate high peak-to-average power ratio (PAPR) problem of orthogonal frequency-division multiplexing (OFDM) signals, various PAPR reduction techniques have been studied. Among them, trellis shaping (TS), which controls a signal by utilizing the structure of convolutional code at the transmitter, is known for its flexibility of design and high PAPR reduction capability. However, the major drawback of the conventional TS is due to its complexity required for metric calculation associated with PAPR reduction. In this paper, we propose an alternative approach that makes use of signal clipping to generate a symbol replica so as to reduce the complexity of the metric calculation. Through extensive simulations, the effectiveness of the proposed approach as well as its cost in return for significant reduction of the transmitter complexity is demonstrated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) OFDM / Peak-to-Average Power Ratio / Clipping and Filtering / Trellis Shaping
Paper # RCS2017-209
Date of Issue 2017-11-01 (RCS)

Conference Information
Committee AP / RCS
Conference Date 2017/11/8(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Fukuoka University
Topics (in Japanese) (See Japanese page)
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc.
Chair Jiro Hirokawa(Tokyo Tech.) / Hidekazu Murata(Kyoto Univ.)
Vice Chair Ryo Yamaguchi(SoftBank) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo)
Secretary Ryo Yamaguchi(NTT DoCoMo) / Yukitoshi Sanada(Saitama Univ.) / Eisuke Fukuda(Toshiba) / Satoshi Suyama(Hokkaido Univ.)
Assistant Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A low-complexity trellis shaping approach for PAPR reduction of OFDM signals
Sub Title (in English)
Keyword(1) OFDM
Keyword(2) Peak-to-Average Power Ratio
Keyword(3) Clipping and Filtering
Keyword(4) Trellis Shaping
1st Author's Name Junya Watanabe
1st Author's Affiliation Yokohama National University(Yokohama Nat. Univ.)
2nd Author's Name Hideki Ochiai
2nd Author's Affiliation Yokohama National University(Yokohama Nat. Univ.)
Date 2017-11-08
Paper # RCS2017-209
Volume (vol) vol.117
Number (no) RCS-284
Page pp.pp.29-34(RCS),
#Pages 6
Date of Issue 2017-11-01 (RCS)