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| Presentation | 2021-11-10 15:30 A Study of Delay Characteristics of Time Domain Channel Model for Terahertz Band Hiroto Ebisawa, Zhaona Wu, Kenta Umebayasi (TUAT), Janne Lehtomaki (University of Oulu), Nizar Zorba (Qatar University)  AP2021-105 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we consider the channel model in THz band for future wireless communication systems. To design wireless communication system using the THz band, it is important to understand the channel characteristics and to model them. The propagation of THz waves is affected by frequency selective fading due to the molecular absorption by mainly water in the atmosphere, throughout the THz band. This unique phenomenon of THz band has not been considered in the microwaves and millimeter waves used for conventional wireless communications. However, it has a significant affected network coverage and achievable data rate in the THz band. In this paper, we investigate the delay characteristics of the LoS channel by assuming the impulse response as a time domain channel model in the THz band. In the related work, the propagation characteristics of the LoS channel have been shown such as average delay, delay spread and total received energy. As a result of further investigation, we found that the time when receiver receives the direct wave, have additional delay than the propagation delay calculated by propagation distance / light speed. This additional delay beyond the propagation delay changed by distance and frequency. So, we formulate the additional delay from the group delay of channel and investigate its characteristics. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Terahertz Band / Channel Models / Impulse Response / Molecular Absorption / Propagation Delay / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 233, AP2021-105, pp. 28-33, Nov. 2021. | |
| Paper # | AP2021-105 | |
| Date of Issue | 2021-11-03 (AP) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | AP2021-105 |
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| Conference Information | |
| Committee | AP RCS |
| Conference Date | 2021-11-10 - 2021-11-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NBC-Bekkan (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2021-11-AP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Delay Characteristics of Time Domain Channel Model for Terahertz Band |
| Sub Title (in English) | |
| Keyword(1) | Terahertz Band |
| Keyword(2) | Channel Models |
| Keyword(3) | Impulse Response |
| Keyword(4) | Molecular Absorption |
| Keyword(5) | Propagation Delay |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroto Ebisawa |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 2nd Author's Name | Zhaona Wu |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 3rd Author's Name | Kenta Umebayasi |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 4th Author's Name | Janne Lehtomaki |
| 4th Author's Affiliation | University of Oulu (University of Oulu) |
| 5th Author's Name | Nizar Zorba |
| 5th Author's Affiliation | Qatar University (Qatar University) |
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| Speaker | Author-1 |
| Date Time | 2021-11-10 15:30:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2021-105 |
| Volume (vol) | vol.121 |
| Number (no) | no.233 |
| Page | pp.28-33 |
| #Pages | 6 |
| Date of Issue | 2021-11-03 (AP) |
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