回転偏波多重多値データ伝送システム
回転偏波多重多値データ伝送システム
カテゴリ: 論文誌(論文単位)
グループ名: 【C】電子・情報・システム部門
発行日: 2023/08/01
タイトル(英語): Data Transmission System Using Multiple Rotating Polarization Waves
著者名: 武井 健((株)日立製作所研究開発グループ)
著者名(英語): Ken Takei (Research & Development Group, Hitachi Ltd.)
キーワード: 回転偏波,多値通信,時間ブロック符号,ダイバシチ,アラモウチシステム,IoT rotating polarization wave,multilevel communication,time block code,diversity,alamouti system,Internet-of-Things
要約(英語): A multilevel data transmission system by using multiple Rotating Polarization Waves is proposed. Multilevel data are transmitted on plural RPWs which have different initial rotating phases at the same frequency. The receiver receives arriving waves on the optimum polarization at the optimum timing within the rotating period where the best communication quality was provided. The RPW system generates three different polarization channels when radio devices are surrounded by many electromagnetic scatters which disable to use line-of-sight paths. The selections of an optimum receiving polarization with and without a time block code achieve the best and better diversity effects by using independent three and two polarization channels, respectively.
本誌掲載ページ: 728-735 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/143/8/143_728/_article/-char/ja/
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