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| Presentation | 2021-07-14 09:50 A Study on The Effect of Correlated Fading on Joint Transmit-receive Diversity and MIMO Spatial Multiplexing Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.)  RCS2021-79 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Joint transmit-receive diversity (JTRD) is one of diversity techniques to mitigate the degradation of communication quality due to multipath fading. In JTRD, the transmitter and receiver cooperate so as to maximize the received signal-to-noise ratio (SNR). On the other hand, eigenmode beamforming (EMBF) technique is known to transmit multiple data streams by taking advantage of multi-input multi-output (MIMO) channel. The transmit and receive weight matrices are unitary matrices composed of the right and left singular vectors, respectively. In this paper, it is shown that the transmit and receive diversity weight vectors of optimal JTRD are respectively equivalent to the right and left singular vectors which correspond to the first singular value and accordingly, that optimal JTRD corresponds to the single-stream EMBF using the first singular value. In optimal JTRD, the achievable channel capacity improves as the fading correlation at the receiver side gets stronger. We try to understand such a behavior from a viewpoint of EMBF in correlated Rayleigh fading channels. By Monte-Carlo numerical computation assuming two-antenna receiver case, such a behavior of optimal JTRD is shown to come from a fact that as the fading correlation gets stronger, the 2nd singular value (eigenvalue) deteriorates rapidly and, in return, the first singular value (eigenvalue) gets stronger. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Joint transmit-receive diversity / eigenmode beamforming / fading correlation / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 103, RCS2021-79, pp. 13-18, July 2021. | |
| Paper # | RCS2021-79 | |
| Date of Issue | 2021-07-07 (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 | RCS2021-79 |
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| Conference Information | |
| Committee | RCS SR NS SeMI RCC |
| Conference Date | 2021-07-14 - 2021-07-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Communication and Network Technology of the AI Age, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2021-07-RCS-SR-NS-SeMI-RCC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on The Effect of Correlated Fading on Joint Transmit-receive Diversity and MIMO Spatial Multiplexing |
| Sub Title (in English) | |
| Keyword(1) | Joint transmit-receive diversity |
| Keyword(2) | eigenmode beamforming |
| Keyword(3) | fading correlation |
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| Keyword(8) | |
| 1st Author's Name | Fumiyuki Adachi |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Ryo Takahashi |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-07-14 09:50:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2021-79 |
| Volume (vol) | vol.121 |
| Number (no) | no.103 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2021-07-07 (RCS) |
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