Terahertz and photonics seamless networks

Tetsuya Kawanishi*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Radio links using terahertz (THz) waves can provide high-speed wireless transmission whose bitrate is higher than 100Gb/s. Congestion of radio spectrum in THz bands (0.1-10 THz) is not so significant for the time being. However, multi- level modulation formats would be required in in THz bands as well as in conventional millimeter- wave or microwave bands, to increase spectral efficiency. We provide overviews on spectral efficiency and transmission capacity of high-speed radio links using THz bands. Reduction power consumption in radio equipment is also very important to reduce operation cost of networks. We describe a survey result on power consumption of short-distance wireless systems. The result implies that THz high-speed radio links would be useful to reduce power consumption per bit in transmission. However, transmission distances in THz systems would be shorter than a few kilometers due to attenuation in the air. Thus, we should rely on seamless networks consisting of THz radio- links and optical fibers, where devices developed for optical fiber transmission can be used to THz wave generation and detection.

Original languageEnglish
Title of host publication2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728109602
Publication statusPublished - 2019 Dec
Event2019 IEEE Globecom Workshops, GC Wkshps 2019 - Waikoloa, United States
Duration: 2019 Dec 92019 Dec 13

Publication series

Name2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings


Conference2019 IEEE Globecom Workshops, GC Wkshps 2019
Country/TerritoryUnited States


  • Millimeter-wave
  • Modulation
  • Optical fiber
  • THz
  • Transmission

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software
  • Control and Optimization


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