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  • 标题:データ拡散を用いた符号化OFDM方式
  • 本地全文:下载
  • 作者:尾脇 義明 ; 京面 公士 ; 伊丹 誠
  • 期刊名称:映像情報メディア学会誌
  • 印刷版ISSN:1342-6907
  • 电子版ISSN:1881-6908
  • 出版年度:2004
  • 卷号:58
  • 期号:10
  • 页码:1435-1441
  • DOI:10.3169/itej.58.1435
  • 出版社:The Institute of Image Information and Television Engineers
  • 摘要:In OFDM signal reception, frequency dips caused by multipath propagation generate burst errors and this leads to a severe degradation of performance. To minimize this degradation, an error control code such as an error correcting code combined with a frequency interleaver is usually used. We analyzed the characteristics of a data spreading scheme in the frequency domain combined with an error correcting code. We ascertained that the proposed method results in a performance improvement. Moreover, we demonstrated that a reduction in the delay time and calculations in the decoder is possible.
  • 关键词:OFDM;データ拡散;誤り訂正符号;インタリーバ;ターボ符号;畳み込み符号;トレリス符号化変調
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