文章基本信息

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 ; 伊丹誠等
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