Paper Abstract and Keywords |
Presentation |
2014-03-03 13:20
A Study on Optimizations of Quantization Threshold for Decode-Quantize-Forward Relaying Shinsuke Ibi, Seiichi Sampei (Osaka Univ.) RCS2013-336 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper investigates optimizations of threshold values involved in quantization of log likelihood ratio (LLR), which is derived at relay node in decode-quantize-and-forward (DQF) relaying. In order to carry out exact decoding for LLR compress encoder of DQF relaying, we explicitly define an equivalent LLR transfer signal model. Under the definition, we propose an efficient approximation, which drastically reduces computational efforts for decoding. After carefully inspecting impacts of the quantization threshold, decode-adaptive quantize-and-forward (DAQF) that adaptively selects optimal threshold according to channel states is proposed. Finally, we validate the proposed system by computer simulations. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Relay transmission / CoMP / DF / DQF / log likelihood ratio / quantization / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 456, RCS2013-336, pp. 181-186, March 2014. |
Paper # |
RCS2013-336 |
Date of Issue |
2014-02-24 (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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RCS2013-336 |
Conference Information |
Committee |
RCS SR SRW |
Conference Date |
2014-03-03 - 2014-03-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Waseda Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile Communication Workshop |
Paper Information |
Registration To |
RCS |
Conference Code |
2014-03-RCS-SR-SRW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Optimizations of Quantization Threshold for Decode-Quantize-Forward Relaying |
Sub Title (in English) |
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Relay transmission |
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CoMP |
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DF |
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DQF |
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log likelihood ratio |
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quantization |
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1st Author's Name |
Shinsuke Ibi |
1st Author's Affiliation |
Osaka University (Osaka Univ.) |
2nd Author's Name |
Seiichi Sampei |
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Osaka University (Osaka Univ.) |
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Speaker |
Author-1 |
Date Time |
2014-03-03 13:20:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2013-336 |
Volume (vol) |
vol.113 |
Number (no) |
no.456 |
Page |
pp.181-186 |
#Pages |
6 |
Date of Issue |
2014-02-24 (RCS) |
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