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| Presentation | 2016-12-22 10:40 A Study on Phase Noise Variance Estimation and Approximated LLR for Single Carrier Transmissions Makoto Nishikori, Shinsuke Ibi, Seiichi Sampei (Osaka Univ.)  RCS2016-225 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a novel phase noise variance estimation method using preamble sequence and high reliability log likelihood ratio (LLR) on the basis of non-Gaussian distributed equalizer outputs including phase noise for single carrier millimeter-wave (mmW) transmission systems. In mmW systems, phase noise on carrier wave signals in very high frequency bands causes severe performance degradation. In order to mitigate the impairments of phase noise, forward error correction (FEC) techniques with reliable LLR calculated on the basis of non-Gaussian distributed equalizer output including phase noise are effective. However, if the variance of phase noise cannot be captured accurately, the decoding capability is deteriorated. Fortunately, the impact of phase noise on channel estimation can be ignored owing to long preamble sequence. Therefore, the phase noise variance can be accurately estimated from the preamble sequence equalized by the estimated channel state information (CSI). This paper validates the proposed phase noise estimation method by computer simulations, and confirms that the approximated LLR with estimated phase noise variance is capable of improving bit error rate (BER) performance in the presence of phase noise. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | millimeter wave / single carrier / phase noise / variance estimation / log likelihood ratio / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 383, RCS2016-225, pp. 93-98, Dec. 2016. | |
| Paper # | RCS2016-225 | |
| Date of Issue | 2016-12-14 (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) | |
| Download PDF | RCS2016-225 |
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| Conference Information | |
| Committee | NS RCS |
| Conference Date | 2016-12-21 - 2016-12-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| 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 | 2016-12-NS-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Phase Noise Variance Estimation and Approximated LLR for Single Carrier Transmissions |
| Sub Title (in English) | |
| Keyword(1) | millimeter wave |
| Keyword(2) | single carrier |
| Keyword(3) | phase noise |
| Keyword(4) | variance estimation |
| Keyword(5) | log likelihood ratio |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Makoto Nishikori |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Seiichi Sampei |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-12-22 10:40:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2016-225 |
| Volume (vol) | vol.116 |
| Number (no) | no.383 |
| Page | pp.93-98 |
| #Pages | 6 |
| Date of Issue | 2016-12-14 (RCS) |
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