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| Presentation | 2009-01-23 13:20 Analysis of Adaptive Reduced-Rank filter for DS/CDMA Communication System Tsuyoshi Ichikawa, Hironobu Taniguchi, Kohei Otake (Hosei Univ.), Noriyoshi Kuroyanagi (Chubu Univ.)  SIP2008-155 RCS2008-203 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In DS/CDMA communication systems, the introduction of array antennas is extremely effective to the communication capacity improvement. But, if the full rank MMSE signal detection is made, the processing dimension increases and the computational cost becomes unrealistic. Moreover, the required number of reference symbols for the correlation matrix calculation is increased by the factor of the antenna element number, which causes the degradation in the response characteristics of the adaptive MMSE receiver. The reduced-rank MMSE signal detection method that uses a signal subspace is effective to solve these problems. Especially, the CGRRF(Conjugate Gradient Reduced Rank Filter) shows high convergence rate and robustness. On the other hand, the RGMF(Recursive Gradient MMSE Filter) previously proposed by us shows slightly low convergence rate compared with the CGRRF. But, it shows higher robustness against channel estimation error than the CGRRF. In this paper, we discuss the robustness of the RGMF through analyzing both the RGMF and the CGRRF operations. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | DS/CDMA / adaptive array antennas / Krylov subspace / reduced-rank / RGMF / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 391, RCS2008-203, pp. 183-188, Jan. 2009. | |
| Paper # | RCS2008-203 | |
| Date of Issue | 2009-01-15 (SIP, 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 | SIP2008-155 RCS2008-203 |
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| Conference Information | |
| Committee | SIP RCS |
| Conference Date | 2009-01-22 - 2009-01-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2009-01-SIP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Adaptive Reduced-Rank filter for DS/CDMA Communication System |
| Sub Title (in English) | |
| Keyword(1) | DS/CDMA |
| Keyword(2) | adaptive array antennas |
| Keyword(3) | Krylov subspace |
| Keyword(4) | reduced-rank |
| Keyword(5) | RGMF |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tsuyoshi Ichikawa |
| 1st Author's Affiliation | Hosei University (Hosei Univ.) |
| 2nd Author's Name | Hironobu Taniguchi |
| 2nd Author's Affiliation | Hosei University (Hosei Univ.) |
| 3rd Author's Name | Kohei Otake |
| 3rd Author's Affiliation | Hosei University (Hosei Univ.) |
| 4th Author's Name | Noriyoshi Kuroyanagi |
| 4th Author's Affiliation | Chubu University (Chubu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-01-23 13:20:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | SIP2008-155, RCS2008-203 |
| Volume (vol) | vol.108 |
| Number (no) | no.390(SIP), no.391(RCS) |
| Page | pp.183-188 |
| #Pages | 6 |
| Date of Issue | 2009-01-15 (SIP, RCS) |
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