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| Presentation | 2020-06-04 13:30 Measurement of radio channel impulse response using USRP X300 software defined radio considering non-causal components Tomoya Nakahama, Yoji Yamada (NIT, Ishikawa College), Suguru Kameda, Mizuki Motoyoshi, Noriharu Suematsu (Tohoku Univ.)  SR2020-1 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To prototype a wireless system that includes cancellation using a software defined radio (SDR), the channel impulse response (CIR) must be measured under actual operating conditions. In this case, the CIR contains the characteristics of the D/A and A/D converters, filters, cables and other components. Another application requires an accurate CIR that does not include the characteristics of those components. To solve these problems, this paper describes CIR measurement method using maximum length sequences on USRP X300 SDR devices. The amplitude / phase error of the CIR measured under the sampling frequency of Fsb=20MHz and the carrier frequency of Fc=920MHz, were less than 0.2 dB / 1.2 degrees compared to a vector network analyzer (VNA). It was shown that the amplitude and phase characteristics obtained from the CIR measurement results between the transmitting and receiving antennas installed in a laboratory are similar to those of the VNA. The proposed method cancels the characteristics of the measurement system using an approximate inverse system based on the delayed inverse. This makes it possible to avoid the division operation in the frequency domain. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | GNU Radio / wireless communication channels / delayed inverse / cancellation / full duplex radio / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 53, SR2020-1, pp. 1-8, June 2020. | |
| Paper # | SR2020-1 | |
| Date of Issue | 2020-05-28 (SR) | |
| 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 | SR2020-1 |
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| Conference Information | |
| Committee | SR |
| Conference Date | 2020-06-04 - 2020-06-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software Defined Radio, Machine Learning, General |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2020-06-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of radio channel impulse response using USRP X300 software defined radio considering non-causal components |
| Sub Title (in English) | |
| Keyword(1) | GNU Radio |
| Keyword(2) | wireless communication channels |
| Keyword(3) | delayed inverse |
| Keyword(4) | cancellation |
| Keyword(5) | full duplex radio |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomoya Nakahama |
| 1st Author's Affiliation | National Institute of Technology, Ishikawa College (NIT, Ishikawa College) |
| 2nd Author's Name | Yoji Yamada |
| 2nd Author's Affiliation | National Institute of Technology, Ishikawa College (NIT, Ishikawa College) |
| 3rd Author's Name | Suguru Kameda |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 4th Author's Name | Mizuki Motoyoshi |
| 4th Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 5th Author's Name | Noriharu Suematsu |
| 5th Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-06-04 13:30:00 |
| Presentation Time | 25 minutes |
| Registration for | SR |
| Paper # | SR2020-1 |
| Volume (vol) | vol.120 |
| Number (no) | no.53 |
| Page | pp.1-8 |
| #Pages | 8 |
| Date of Issue | 2020-05-28 (SR) |
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