Feasibility demonstration of terahertz-wave communication with physical-layer security

Y. Kawai, H. Chen, K. Kato

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

6G/beyond 5G technologies should meet the requirement for both high speed and high security. We have focused on terahertz (THz) waves for high-speed transmission, and by photomixing, we have demonstrated power enhancement and beam steering. In terms of the security of wireless transmission, physical-layer security becomes an important issue. We have proposed a novel wireless communication system based on beam steering and coherent detection. In this system, two different data encoded from original data on two THz beams are radiated from two different locations and are overlapped at a target area by beam steering. Then, a receiver at the area implements logical AND operation between the two data as a result of coherent detection, which deduces the original data. This time, as a feasibility confirmation, we performed logical AND operation between two data on different lightwaves and measured the bit error rate of the deduced original data. Experimental results showed that the original data is deduced exactly from the two encoded data when the amplitude ratio between the two data is smaller than 5. This indicates that the acceptable ratio between the distances from two different transmitters would be up to 5. Experimental results also showed that the bit error rate suddenly deteriorates when the time slots of the two data are shifted by 0.7 bits This indicates that the receivable area is limited in several centimeters square for a 1-Gbit/s data.

本文言語英語
ホスト出版物のタイトルTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV
編集者Laurence P. Sadwick, Tianxin Yang
出版社SPIE
ISBN(電子版)9781510648715
DOI
出版ステータス出版済み - 2022
イベントTerahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV 2022 - Virtual, Online
継続期間: 2月 20 20222月 24 2022

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
12000
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

会議

会議Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XV 2022
CityVirtual, Online
Period2/20/222/24/22

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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