Paper Abstract and Keywords |
Presentation |
2011-12-15 13:15
Suboptimal Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Kazuhiro Kimura, Masayuki Nakada, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) NS2011-126 RCS2011-239 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We previously proposed a modulation assignment method (conventional method) for uplink single carrier (SC) 2-time slot cooperative Decode-and-forward (DF) relay. The conventional method is based on the short-term average received signal-to-noise ratios (SNRs) of mobile terminal (MT) - base station (BS) link, MT- relay station (RS) link, and RS-BS link. The modulation assignment based on instantaneous channel state information (CSI) may achieve superior throughput performance to that based on short-term average received SNR. However, the modulation assignment method based on instantaneous CSI is quite difficult to implement. Therefore, in this paper, knowing that the contribution of MT-BS link to the achievable throughput can be neglected when an MT is close to the cell edge, a suboptimal modulation assignment method is proposed that is based on the instantaneous CSI of MT-RS link and RS-BS link. We evaluate, by computer simulation, the uplink throughput performance of SC 2-time slot cooperative DF relay using the proposed suboptimal method. It is shown that the proposed suboptimal method can achieve superior throughput performance to the conventional method although its throughput performance is inferior to the optimal method (or full-search method) based on the instantaneous CSI of all links. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
cooperative DF relay / single carrier transmission / adaptive modulation assignment / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 345, RCS2011-239, pp. 39-44, Dec. 2011. |
Paper # |
RCS2011-239 |
Date of Issue |
2011-12-08 (NS, 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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NS2011-126 RCS2011-239 |
Conference Information |
Committee |
NS RCS |
Conference Date |
2011-12-15 - 2011-12-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Yamaguchi University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network |
Paper Information |
Registration To |
RCS |
Conference Code |
2011-12-NS-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Suboptimal Modulation Assignment For Uplink Single Carrier Cooperative DF Relay |
Sub Title (in English) |
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cooperative DF relay |
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single carrier transmission |
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adaptive modulation assignment |
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1st Author's Name |
Kazuhiro Kimura |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Masayuki Nakada |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Tatsunori Obara |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Fumiyuki Adachi |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-12-15 13:15:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
NS2011-126, RCS2011-239 |
Volume (vol) |
vol.111 |
Number (no) |
no.344(NS), no.345(RCS) |
Page |
pp.43-48(NS), pp.39-44(RCS) |
#Pages |
6 |
Date of Issue |
2011-12-08 (NS, RCS) |
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