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| Presentation | 2016-10-20 10:10 Performance of Circular QAM Constellations Using Partial Channel Coding with Parallel Double Gray Mapping Lianjun Deng, Bin Zheng, Mamoru Sawahashi (Tokyo City Univ.), Norifumi Kamiya (NEC)  RCS2016-161 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes parallel double Gray mapping scheme which is suitable for circular quadrature amplitude modulation (QAM) constellations using partial channel coding associated with collaborative decoding. By using the parallel double Gray mapping scheme, we compare the bit error rate (BER) performance of circular 1024QAM and 2048QAM schemes with rectangular 1024QAM and cross 2048QAM schemes, respectively. Computer simulation shows that the required received signal-to-noise power ratio (SNR) at the BER of 10-5 of the collaborative decoding is decreased by approximately 6.5 dB compared to that of the independent decoding for partial turbo coding employing the parallel double Gray mapping. We also show that circular 1024QAM exhibits higher robustness for time-varying phase noise compared to rectangular 1024QAM. We show however that rectangular 1024QAM provides the slightly better BER performance level compared to circular 1024QAM when using partial turbo coding employing the parallel double Gray mapping under additive white Gaussian noise (AWGN) channel with time-varying phase noise. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | QAM / Circular QAM / partial channel coding / double Gray mapping / phase noise / Rectangular QAM / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 257, RCS2016-161, pp. 47-52, Oct. 2016. | |
| Paper # | RCS2016-161 | |
| Date of Issue | 2016-10-13 (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 | RCS2016-161 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2016-10-20 - 2016-10-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP (Yokosuka) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2016-10-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance of Circular QAM Constellations Using Partial Channel Coding with Parallel Double Gray Mapping |
| Sub Title (in English) | |
| Keyword(1) | QAM |
| Keyword(2) | Circular QAM |
| Keyword(3) | partial channel coding |
| Keyword(4) | double Gray mapping |
| Keyword(5) | phase noise |
| Keyword(6) | Rectangular QAM |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Lianjun Deng |
| 1st Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 2nd Author's Name | Bin Zheng |
| 2nd Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 3rd Author's Name | Mamoru Sawahashi |
| 3rd Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 4th Author's Name | Norifumi Kamiya |
| 4th Author's Affiliation | NEC Corporation (NEC) |
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| Speaker | Author-1 |
| Date Time | 2016-10-20 10:10:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2016-161 |
| Volume (vol) | vol.116 |
| Number (no) | no.257 |
| Page | pp.47-52 |
| #Pages | 6 |
| Date of Issue | 2016-10-13 (RCS) |
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