Paper Abstract and Keywords |
Presentation |
2015-03-06 09:25
Space-Time Block Coded Amplify-and-Forward Relay with Cyclic Delay Diversity Chikara Endo, Hiroyuki Miyazaki, Fumiyuki Adachi (Tohoku Univ.) RCS2014-350 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recently, we proposed space-time block coded (STBC) amplify-and-forward (AF) relay for wireless relay communication using unmanned aircrafts (UAs). In STBC-AF relay, UAs perform AF-STBC encoding consisting of conjugate operation and block exchange only. Then, the destination node performs frequency-domain equalization (FDE), diversity combining and linear STBC decoding by using an equivalent channel which is a concatenation of the channels of the source-UA link and the UA-destination link. Our previous study showed that STBC-AF relay can improve bit error rate (BER) performance by increasing the number of UAs. However, when the number of UAs is more than 3, the code rate of AF-STBC decreases, resulting in the throughput degradation. In this paper, we proposed STBC-AF relay with cyclic delay diversity (CDD). In STBC-CDD-AF relay, a number of UAs are divided into 2 groups, and then AF-STBC encoding for 2 UAs is performed by the group. And then, the each UA in each group adds different cyclic delay to each transmit signal. We evaluate, by the computer simulation, the average BER performance and throughput performance when using STBC-CDD-AF relay and showed that STBC-CDD-AF relay achieves higher throughput than STBC-AF relay when the number of UAs is 4. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
space-time block coding / cooperative amplify-and-forward relay / cyclic delay diversity / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 490, RCS2014-350, pp. 291-296, March 2015. |
Paper # |
RCS2014-350 |
Date of Issue |
2015-02-25 (RCS) |
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) |
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RCS2014-350 |
Conference Information |
Committee |
RCS SR SRW |
Conference Date |
2015-03-04 - 2015-03-06 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo Institute of Technology |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
RCS |
Conference Code |
2015-03-RCS-SR-SRW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Space-Time Block Coded Amplify-and-Forward Relay with Cyclic Delay Diversity |
Sub Title (in English) |
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space-time block coding |
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cooperative amplify-and-forward relay |
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cyclic delay diversity |
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1st Author's Name |
Chikara Endo |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Hiroyuki Miyazaki |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Fumiyuki Adachi |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-03-06 09:25:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2014-350 |
Volume (vol) |
vol.114 |
Number (no) |
no.490 |
Page |
pp.291-296 |
#Pages |
6 |
Date of Issue |
2015-02-25 (RCS) |
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