空間波形変調無線通信システム

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: 2024/08/01

タイトル(英語): Spatial Waveform Modulation Wireless Communication System

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 (Reaearch & Development Group, Hitachi Ltd.)

キーワード: 無線通信ネットワーク，空間波形変調，ビート波，偏波回転，IoT，2キャリア同時送信　　wireless communication network，spatial waveform modulation，beat wave，polarization rotation，internet of things，2 carriers simultaneous transfer

要約(英語): A wireless communication system using spatial waveform modulation is proposed. The electromagnetic waves, which the transceivers of this system provide, transfer an information signal by using a spatially modulated electromagnetic waveform to achieve a better communication quality in an environment where electromagnetic scatters surround them. When the wireless system transfers an information signal on an electromagnetic wave at much higher frequency than that of this signal, the system modifies the propagating waveform consisting of plural electromagnetic waves to transfer the same signal because these waves become the wave varying its envelope at a different frequency from the propagation frequency. The modified waveform is able to increase an intensity of the information signal at the frequency which is much higher than that of the varying envelope. This system drastically improves either a data transfer range or a signal quality by using the rotating polarization of the transmitting waves with the same signal at different frequencies, in comparison with the conventional wireless system which uses the fixed polarization wave.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.144 No.8 （2024） 特集Ⅰ：Smart Cityを支える高度な無線通信，センシング及び情報処理　特集Ⅱ：人と人とを繋ぐ情報・システム技術

本誌掲載ページ: 718-724 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/144/8/144_718/_article/-char/ja/