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| Presentation | 2018-11-22 09:30 A Study on Efficient Spectrum Utilization for Feeder Link using Multipe Gateways in HAPS System Takafumi Fujii, Yoshichika Ohta (HAPSmobile)  RCS2018-203 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | HAPS (High Altitude Platform Station), which is a stratosphere platform around 20Km altitude, cellular communication service makes it possible to directly communicate among ordinary land cellular phones. HAPS is also a promising system for service area expansions as well as reliable communication methods at various natural disasters. HAPS communication system is composed of service links which provide communications between HAPS and land cellular phones and a feeder link which establishes a communication between HAPS and a base station (Gateway). The communication capacity of HAPS service link is determined by the communication capacity of its feeder link, which is equivalent to repeater frequency. Therefore, an efficient spectrum usage of the feeder link is indispensable. In this paper, we propose a “Multiple Gateway System” for an efficient spectrum usage. Multiple Gateways placed on the land transmit and receive different feeder link signals at the same frequency. The proposed system can improve the efficient spectrum utilization as the number of Gateways increases by eliminating the interferences among feeder links. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | High Altitude Platform Station / MIMO / Interference canceller / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 311, RCS2018-203, pp. 143-148, Nov. 2018. | |
| Paper # | RCS2018-203 | |
| Date of Issue | 2018-11-13 (RCS) | |
| 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 | RCS2018-203 |
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| Conference Information | |
| Committee | RCS AP |
| Conference Date | 2018-11-20 - 2018-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2018-11-RCS-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Efficient Spectrum Utilization for Feeder Link using Multipe Gateways in HAPS System |
| Sub Title (in English) | |
| Keyword(1) | High Altitude Platform Station |
| Keyword(2) | MIMO |
| Keyword(3) | Interference canceller |
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| 1st Author's Name | Takafumi Fujii |
| 1st Author's Affiliation | HAPSmobile.inc (HAPSmobile) |
| 2nd Author's Name | Yoshichika Ohta |
| 2nd Author's Affiliation | HAPSmobile.inc (HAPSmobile) |
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| Speaker | Author-1 |
| Date Time | 2018-11-22 09:30:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2018-203 |
| Volume (vol) | vol.118 |
| Number (no) | no.311 |
| Page | pp.143-148 |
| #Pages | 6 |
| Date of Issue | 2018-11-13 (RCS) |
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