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| Presentation | 2010-11-11 13:05 PAPR Reduction Method Based on Significant-Bit Scrambling in Adaptive Modulated MIMO Vector Coding Systems Yasuto Ando, Osamu Muta, Hiroshi Furukawa (Kyushu Univ.)  RCS2010-144 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In high speed wireless transmission, inter-symbol interference (ISI) caused in a frequency-selective channel severely degrades bit error rate (BER) performance. As a method to overcome frequency selectivity in wireless channel, vector coding (VC) transmission has been studied. VC is a kind of code-division multiplexing (CDM) where eigenvectors of channel autocorrelation matrix are used as spreading code, and VC needs to adopt an adaptive modulation to enhance transmission performance. A major drawback of the VC is that the transmit signal exhibits high peak-to average power ratio (PAPR) which causes nonlinear distortion and/or power efficiency degradation at power amplifier, similarly to OFDM and CDM systems. As a method to solve this problem, an SLM method with a self-synchronized scrambler (SLM-SS) has been studied. However, on the receiver side, it is needed to restore the original constellation data mapping to obtain information data. In this paper, we propose an SLM-SS method with the significant-bit scrambling for adaptive modulated VC transmission systems, where only most significant bits of I- and Q-phase of each modulated symbol are scrambled to reduce PAPR. Simulation results show that BER degradation caused by error propagation is effectively mitigated, while achieving almost the same PAPR reduction performance as conventional SLM-SS method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Vector coding / Adaptive modulation / PAPR reduction / Selected mapping / Significant bit scrambling / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 268, RCS2010-144, pp. 11-16, Nov. 2010. | |
| Paper # | RCS2010-144 | |
| Date of Issue | 2010-11-04 (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 | RCS2010-144 |
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| Conference Information | |
| Committee | AP RCS |
| Conference Date | 2010-11-10 - 2010-11-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukui Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | AP, RCS |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2010-11-AP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | PAPR Reduction Method Based on Significant-Bit Scrambling in Adaptive Modulated MIMO Vector Coding Systems |
| Sub Title (in English) | |
| Keyword(1) | Vector coding |
| Keyword(2) | Adaptive modulation |
| Keyword(3) | PAPR reduction |
| Keyword(4) | Selected mapping |
| Keyword(5) | Significant bit scrambling |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuto Ando |
| 1st Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 2nd Author's Name | Osamu Muta |
| 2nd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 3rd Author's Name | Hiroshi Furukawa |
| 3rd Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2010-11-11 13:05:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2010-144 |
| Volume (vol) | vol.110 |
| Number (no) | no.268 |
| Page | pp.11-16 |
| #Pages | 6 |
| Date of Issue | 2010-11-04 (RCS) |
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