Peak power reduction method based on structure of parity-check matrix for LDPC coded OFDM transmission

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

8 被引用数 (Scopus)

抄録

In this paper, we propose a peak power reduction method for LDPC coded OFDM system, where transmit data sequence is grouped into several clusters based on structure of a low density parity-check matrix and the phase of each cluster is adjusted so as to minimize PAPR of OFDM signal by multiplying weighting factors (WFs). At the receiver, WFs are estimated with sufficient accuracy by exploiting the decoding property of LDPC code. The proposed method can be applied to not only systematic coded signal but also non-systematic one. Computer simulation results show that, when LDPC code with code-rate of R ≈ 1/2 is used, PAPR of OFDM signal can be reduced by about 2.4dB without significant degradation in BLER performance as compared to perfect WF estimation in attenuated 12-path Rayleigh fading condition.

本文言語英語
ホスト出版物のタイトル2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
ページ2841-2845
ページ数5
DOI
出版ステータス出版済み - 8月 2 2007
イベント2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring - Dublin, アイルランド
継続期間: 4月 22 20074月 25 2007

出版物シリーズ

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

その他

その他2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
国/地域アイルランド
CityDublin
Period4/22/074/25/07

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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