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| Presentation | 2011-12-16 15:05 Non-Linear Distortion Noise Control for Spectrum Sharing Systems Seiichiro Okamoto, Shigeru Tomisato (Okayama Univ.), Hiromasa Fujii (NTTDOCOMO), Masaharu Hata (Okayama Univ.), Shunji Miura, Hidetoshi Kayama (NTTDOCOMO)  RCS2011-260 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, a spectrum sharing method between wireless communication systems has been studied to use frequency resources with much higher efficiency. In general, different systems for spectrum sharing have different system bandwidths. Therefore, spectrum sharing systems such that a low-priority system has wider frequency bands than a high-priority system should be considered. In such spectrum sharing environments, reducing transmission power of the low-priority system in partial frequency bands overlapped with the high-priority system is considered to work effectively so as to avoid harmful interference to the high-priority system. This paper proposes a non-linear distortion noise control method based on a clipping and filtering method for the low-priority system to improve reception quality degradation which occurs in shared bands whose transmission power is reduced. The proposed method adaptively controls distortion noise power in shared bands with transmission power control according to the amount of the reduced power. In this paper, optimal clipping levels, required parameters in the proposed method, are investigated, and then the spectrum property and BER performance with the optimal clipping levels are evaluated by computer simulations. The results confirm that the proposed method can significantly improve reception quality of the low-priority system in shared bands with transmission power control. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Spectrum Sharing / OFDM / OFDMA / Transmission Power Control / Non-Linear Distortion / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 345, RCS2011-260, pp. 165-170, Dec. 2011. | |
| Paper # | RCS2011-260 | |
| Date of Issue | 2011-12-08 (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 | RCS2011-260 |
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| Conference Information | |
| Committee | NS RCS |
| Conference Date | 2011-12-15 - 2011-12-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yamaguchi University |
| 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 | 2011-12-NS-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Non-Linear Distortion Noise Control for Spectrum Sharing Systems |
| Sub Title (in English) | |
| Keyword(1) | Spectrum Sharing |
| Keyword(2) | OFDM |
| Keyword(3) | OFDMA |
| Keyword(4) | Transmission Power Control |
| Keyword(5) | Non-Linear Distortion |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Seiichiro Okamoto |
| 1st Author's Affiliation | Okayama University (Okayama Univ.) |
| 2nd Author's Name | Shigeru Tomisato |
| 2nd Author's Affiliation | Okayama University (Okayama Univ.) |
| 3rd Author's Name | Hiromasa Fujii |
| 3rd Author's Affiliation | NTTDOCOMO (NTTDOCOMO) |
| 4th Author's Name | Masaharu Hata |
| 4th Author's Affiliation | Okayama University (Okayama Univ.) |
| 5th Author's Name | Shunji Miura |
| 5th Author's Affiliation | NTTDOCOMO (NTTDOCOMO) |
| 6th Author's Name | Hidetoshi Kayama |
| 6th Author's Affiliation | NTTDOCOMO (NTTDOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2011-12-16 15:05:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2011-260 |
| Volume (vol) | vol.111 |
| Number (no) | no.345 |
| Page | pp.165-170 |
| #Pages | 6 |
| Date of Issue | 2011-12-08 (RCS) |
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