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| Presentation | 2009-10-23 09:50 Study of Optimal Relay Position of Bi-directional Cooperative Relaying under Asymmetric Traffic Conditions Takaaki Saeki, Koji Yamamoto, Hidekazu Murata, Susumu Yoshida (Kyoto Univ.)  SR2009-60 AN2009-30 USN2009-33 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Cooperative relaying (CR) is a promising technique to provide spatial diversity by combining multiple signals from source and relay stations. In the present paper, the impact of the asymmetric property on the optimal relay position in bi-directional CR under asymmetric traffic conditions are discussed assuming that CR involves one communication pair and one relay station in a time division duplex (TDD) system. As a result of the asymmetric property, the average communication quality differs for each transmission direction because of the difference in signal power between the combined signals for each direction. In order to evaluate the impact of the asymmetric property, the optimal relay position and resource allocation are compared to those in simple multi-hop relaying, which does not have the asymmetric property. Numerical results show that, in order to maximize the overall quality of bi-directional communication, the optimal relay position in CR depends on the offered traffic ratio, while the offered traffic ratio does not affect the optimal relay position in multi-hop relaying. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | cooperative relaying / asymmetric traffic / optimal relay position / decode-and-forward / spectral efficiency / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 247, AN2009-30, pp. 51-55, Oct. 2009. | |
| Paper # | AN2009-30 | |
| Date of Issue | 2009-10-15 (SR, AN, USN) | |
| ISSN | Print edition: ISSN 0913-5685 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 | SR2009-60 AN2009-30 USN2009-33 |
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| Conference Information | |
| Committee | SR AN USN |
| Conference Date | 2009-10-22 - 2009-10-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless distributed network, etc. |
| Paper Information | |
| Registration To | AN |
| Conference Code | 2009-10-SR-AN-USN |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of Optimal Relay Position of Bi-directional Cooperative Relaying under Asymmetric Traffic Conditions |
| Sub Title (in English) | |
| Keyword(1) | cooperative relaying |
| Keyword(2) | asymmetric traffic |
| Keyword(3) | optimal relay position |
| Keyword(4) | decode-and-forward |
| Keyword(5) | spectral efficiency |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takaaki Saeki |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 2nd Author's Name | Koji Yamamoto |
| 2nd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 3rd Author's Name | Hidekazu Murata |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 4th Author's Name | Susumu Yoshida |
| 4th Author's Affiliation | Kyoto University (Kyoto Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-10-23 09:50:00 |
| Presentation Time | 20 minutes |
| Registration for | AN |
| Paper # | SR2009-60, AN2009-30, USN2009-33 |
| Volume (vol) | vol.109 |
| Number (no) | no.246(SR), no.247(AN), no.248(USN) |
| Page | pp.59-63(SR), pp.51-55(AN), pp.33-37(USN) |
| #Pages | 5 |
| Date of Issue | 2009-10-15 (SR, AN, USN) |
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