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| Presentation | 2008-03-06 14:20 Constellation Rotated OSDM Systems and Its Performance over Rayleigh Fading Channels Chenggao Han, Takeshi Hashimoto (Univ. of Electro-Comm.), Naoki Suehiro (Univ. of Tsukuba)  RCS2007-222 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | OFDM technique are widely used in communication systems which work under multi-path environment e.g. ADSL, WLAN and DVB etc.. In OFDM system, little inter symbol interference (ISI) can often be tolerated and no extra counter measure such as an equalizer is needed. This, though, does not perform well when the channel nulls are located on the subcarriers. On the other hand, Suehiro, et al. have proposed orthogonal signal division multiplexing (OSDM) system. In OSDM, multi-path environment robustness guarantees symbols recovery by low complexity of receiver even the channel nulls are located on the subcarriers. However, the performance of OSDM is strongly depends on channels and may fail to achieve full diversity. In this paper, we propose a novel constellation-rotated OSDM (CR-OSDM) system. By combining constellation rotation technique which is specialized to OSDM system, the performance become to independent for channel with full diversity. Moreover, we propose new approach for derive rotation angle. In our approach, the rotation angle is decided to minimize symbol error rate or bit error rate while in other constellation rotation technique such as usually used in space time block code, the angle is decided to maximize minimum distance. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | OSDM / OFDM / CR-OSDM / constellation rotation / frequency usage efficiency / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 518, RCS2007-222, pp. 217-222, March 2008. | |
| Paper # | RCS2007-222 | |
| Date of Issue | 2008-02-27 (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 | RCS2007-222 |
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| Conference Information | |
| Committee | RCS AN MoNA SR WBS |
| Conference Date | 2008-03-05 - 2008-03-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2008-03-RCS-AN-MoMuC-SR-WBS |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Constellation Rotated OSDM Systems and Its Performance over Rayleigh Fading Channels |
| Sub Title (in English) | |
| Keyword(1) | OSDM |
| Keyword(2) | OFDM |
| Keyword(3) | CR-OSDM |
| Keyword(4) | constellation rotation |
| Keyword(5) | frequency usage efficiency |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Chenggao Han |
| 1st Author's Affiliation | University of Electro-Communications (Univ. of Electro-Comm.) |
| 2nd Author's Name | Takeshi Hashimoto |
| 2nd Author's Affiliation | University of Electro-Communications (Univ. of Electro-Comm.) |
| 3rd Author's Name | Naoki Suehiro |
| 3rd Author's Affiliation | University of Tsukuba (Univ. of Tsukuba) |
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| Speaker | Author-1 |
| Date Time | 2008-03-06 14:20:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2007-222 |
| Volume (vol) | vol.107 |
| Number (no) | no.518 |
| Page | pp.217-222 |
| #Pages | 6 |
| Date of Issue | 2008-02-27 (RCS) |
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