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| Presentation | 2008-03-07 17:00 Pilot signal generation scheme using frequency dependent cyclic shift sequence for inter-cell interference reduction Yoshihiko Ogawa (Matsushita), Tomohumi Takata, Takashi Iwai (PMCRD), Daichi Imamura, Katsuhiko Hiramatsu (Matsushita), Kazuyuki Miya (PMCRD)  RCS2007-243 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | SC-FDMA(Single-Carrier Frequency Division Multiplexing Access) for the access method and the cyclic shift ZC(Zadoff Chu) sequence for the pilot signal are employed in 3GPP E-UTRA Uplink. The cyclic shift ZC sequence is the orthogonal sequence which shifted ZC sequence cyclically in time domain. In E-UTRA system, the uplink employs FDMA method which allocates the different transmission band to each UE (User equipment). So, there are cases when the frequency bands among cells are overlapped partially assuming that the frequencies reuse is 1. At this time, the orthogonality of them is collapsed and the interference among sequences occurs. Therefore we propose a frequency dependent cyclic shift sequence, which can reduce the interference among sequences by allocating the same index of the cyclic shift sequence to the overlapped sub-carrier. In details, the common sub-carrier among cells with synchronization of the frame timing is set, and the relation between the index of the cyclic shift sequence and the sub-carrier are mapped 1 to 1. Simulation evaluation shows the proposed method can improve the estimation accuracy and improve the receiver performance by 4dB compared to conventional method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Cyclic Shift Sequence / Band offset / Base sub-carrier / Inter-cell interference / FDMA / Pilot Signal / Uplink / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 518, RCS2007-243, pp. 341-346, March 2008. | |
| Paper # | RCS2007-243 | |
| 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 | RCS2007-243 |
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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 | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Pilot signal generation scheme using frequency dependent cyclic shift sequence for inter-cell interference reduction |
| Sub Title (in English) | |
| Keyword(1) | Cyclic Shift Sequence |
| Keyword(2) | Band offset |
| Keyword(3) | Base sub-carrier |
| Keyword(4) | Inter-cell interference |
| Keyword(5) | FDMA |
| Keyword(6) | Pilot Signal |
| Keyword(7) | Uplink |
| Keyword(8) | |
| 1st Author's Name | Yoshihiko Ogawa |
| 1st Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita) |
| 2nd Author's Name | Tomohumi Takata |
| 2nd Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co., Ltd. (PMCRD) |
| 3rd Author's Name | Takashi Iwai |
| 3rd Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co., Ltd. (PMCRD) |
| 4th Author's Name | Daichi Imamura |
| 4th Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita) |
| 5th Author's Name | Katsuhiko Hiramatsu |
| 5th Author's Affiliation | Matsushita Electric Industrial Co., Ltd. (Matsushita) |
| 6th Author's Name | Kazuyuki Miya |
| 6th Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co., Ltd. (PMCRD) |
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| Speaker | Author-1 |
| Date Time | 2008-03-07 17:00:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2007-243 |
| Volume (vol) | vol.107 |
| Number (no) | no.518 |
| Page | pp.341-346 |
| #Pages | 6 |
| Date of Issue | 2008-02-27 (RCS) |
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