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| Presentation | 2015-03-02 16:40 Algorithms to reduce the number of output symbols on condition that discrete memoryless channel satisfies admissible mutual information Takumi Nagahara, Yuta Sakai, Ken-ichi Iwata (Univ. of Fukui)  IT2014-86 ISEC2014-99 WBS2014-78 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Some quantization techniques are used in channel coding system to reduce the complexity of coding problem. Kurkoski and Yagi proposed an algorithm for finding the optimal quantizer design of channel output for any binary-input discrete channel in the sense of maximizing mutual information between the channel input and the quantizer output using dynamic programming for a given input distribution. Moreover, Kurkoski, Yamaguchi, and Kobayashi considered a channel input of a finite alphabet, and proposed a suboptimal quantizer design algorithm by using greedy algorithm. In this paper, we consider quantizer design algorithms to reduce the number of output symbols as small as possible on condition that discrete channel satisfies admissible mutual information. We describe one optimal algorithm of quantizer design for binary-input discrete channel, and one greedy algorithm of quantizer design for discrete channel with a finite input alphabet. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | discrete channel / mutual information / quantizer design algorithm / SMAWK algorithm / greedy algorithm / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 470, IT2014-86, pp. 153-158, March 2015. | |
| Paper # | IT2014-86 | |
| Date of Issue | 2015-02-23 (IT, ISEC, WBS) | |
| 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 | IT2014-86 ISEC2014-99 WBS2014-78 |
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| Conference Information | |
| Committee | ISEC IT WBS |
| Conference Date | 2015-03-02 - 2015-03-03 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The University of Kitakyushu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | joint meeting of IT, ISEC, and WBS |
| Paper Information | |
| Registration To | IT |
| Conference Code | 2015-03-ISEC-IT-WBS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Algorithms to reduce the number of output symbols on condition that discrete memoryless channel satisfies admissible mutual information |
| Sub Title (in English) | |
| Keyword(1) | discrete channel |
| Keyword(2) | mutual information |
| Keyword(3) | quantizer design algorithm |
| Keyword(4) | SMAWK algorithm |
| Keyword(5) | greedy algorithm |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takumi Nagahara |
| 1st Author's Affiliation | University of Fukui (Univ. of Fukui) |
| 2nd Author's Name | Yuta Sakai |
| 2nd Author's Affiliation | University of Fukui (Univ. of Fukui) |
| 3rd Author's Name | Ken-ichi Iwata |
| 3rd Author's Affiliation | University of Fukui (Univ. of Fukui) |
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| Speaker | Author-1 |
| Date Time | 2015-03-02 16:40:00 |
| Presentation Time | 25 minutes |
| Registration for | IT |
| Paper # | IT2014-86, ISEC2014-99, WBS2014-78 |
| Volume (vol) | vol.114 |
| Number (no) | no.470(IT), no.471(ISEC), no.472(WBS) |
| Page | pp.153-158 |
| #Pages | 6 |
| Date of Issue | 2015-02-23 (IT, ISEC, WBS) |
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