A weighting factor estimation scheme for phase-control based peak power reduction of turbo-coded OFDM signal

Osamu Muta, Yoshihiko Akaiwa

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

4 被引用数 (Scopus)

抄録

In this paper, we propose a weighting factor (WF) estimation scheme for phase-control based peak power reduction (PPR) of turbo-coded OFDM signal. In this PPR scheme, the peak power of OFDM signal is reduced by adjusting the phase of parity-carriers by multiplying WFs. At the receiver, WFs are estimated at turbo-decoder without using any side-information. The proposed WF estimation scheme is based on an iterative decoding of turbo-code, i.e. the turbo decoder provides not only error correction capability but also WF estimation function. When a turbo-code of the constraint length of K = 4 and the code rate of R = 1/2 is employed, PAPR of OFDM signal at the CCDF of 10-4 can be reduced by about 2.1dB by applying the PPR scheme. The proposed scheme achieves good BER performance comparable to the case of perfect WF estimation in attenuated 12-path Rayleigh fading condition. The degradation in BER performance is about 1.0dB, 0.4dB and 0.2dB at BER=10-4 for turbo-coded OFDM signals using QPSK, 16QAM and 64QAM, respectively.

本文言語英語
ホスト出版物のタイトル2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
ページ1477-1481
ページ数5
出版ステータス出版済み - 12月 1 2006
イベント2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, オーストラリア
継続期間: 5月 7 20067月 10 2006

出版物シリーズ

名前IEEE Vehicular Technology Conference
3
ISSN(印刷版)1550-2252

その他

その他2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
国/地域オーストラリア
CityMelbourne
Period5/7/067/10/06

!!!All Science Journal Classification (ASJC) codes

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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