| Presentation | 2020-08-25 [Invited Talk] Future prospective of over 1km high-speed THz wireless transmission Tetsuya Kawanishi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High-speed wireless data transfer can be realized by using radio-waves in THz-bands, where wide frequency bands are available for fixed services (FS) and land mobile services (LMS). However, the cell size or the transmission distance would be smaller than a few hundred meters, due to large free space propagation loss and large atmospheric attenuation. Therefore, many base stations and terminals are required to offer general purpose nation-wide radio services. In active radio services using millimeter-wave or THz-wave bands, interference mitigation with passive services such as radio astronomy and Earth observation satellites has been an important issue, already. This paper describes basic characteristics of THz links to discuss expected transmission distance and potential interference between FS and LMS. Research trends of THz-wave technologies are also reviewed from the point of view of a figure of merit defined by a product of the carrier frequency and spectral efficiency, to discuss the significance of spectral efficiency enhancement in the high-frequency region. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | THz / high-speed transmission / transmission distance / interference |
| Paper # | SRW2020-22 |
| Date of Issue | 2020-08-17 (SRW) |
| Conference Information | |
| Committee | SRW |
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| Conference Date | 2020/8/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Video Conf. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | WLAN， WPAN， Ad-hoc, mmWave, etc. |
| Chair | Satoshi Denno(Okayama Univ.) |
| Vice Chair | Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) |
| Secretary | Keiichi Mizutani(NTT) / Kentaro Saito(NIigata Univ.) / Hanako Noda |
| Assistant | Masaaki Fuse(Anritsu) / Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk] Future prospective of over 1km high-speed THz wireless transmission |
| Sub Title (in English) | |
| Keyword(1) | THz |
| Keyword(2) | high-speed transmission |
| Keyword(3) | transmission distance |
| Keyword(4) | interference |
| 1st Author's Name | Tetsuya Kawanishi |
| 1st Author's Affiliation | Waseda University(Waseda Univ.) |
| Date | 2020-08-25 |
| Paper # | SRW2020-22 |
| Volume (vol) | vol.120 |
| Number (no) | SRW-138 |
| Page | pp.pp.61-65(SRW), |
| #Pages | 5 |
| Date of Issue | 2020-08-17 (SRW) |