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| Presentation | 2008-07-25 13:25 Statistical-Mechanics-Based Approach to Joint Channel Estimation and Multiuser Detection in DS-CDMA Channels Keigo Takeuchi (Kyoto Univ.), Mikko Vehkaperae (NTNU), Toshiyuki Tanaka (Kyoto Univ.), Ralf R. Mueller (NTNU)  SIP2008-84 WBS2008-22 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We consider multiuser detection in a randomly-spread frequency-selective block-fading DS-CDMA channel with imperfect CSI at the receiver. We evaluate upper bounds of the spectral efficiencies of two optimal multiuser detectors (MUDs) in large-system limit, by using the so-called replica method, in order to compare them with the spectral efficiency of LMMSE MUD, proposed by Evans and Tse. We find that the LMMSE MUD achieves near-optimal performance for high SNR and small system load if the length of pilot sequences is appropriately adjusted. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | direct-sequence code-division multiple-access / frequency-selective fading / multiuser detection / channel estimation / replica method / spectral efficiency / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 166, WBS2008-22, pp. 43-48, July 2008. | |
| Paper # | WBS2008-22 | |
| Date of Issue | 2008-07-18 (SIP, WBS) | |
| 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 | SIP2008-84 WBS2008-22 |
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| Conference Information | |
| Committee | SIP WBS |
| Conference Date | 2008-07-24 - 2008-07-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | WBS |
| Conference Code | 2008-07-SIP-WBS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Statistical-Mechanics-Based Approach to Joint Channel Estimation and Multiuser Detection in DS-CDMA Channels |
| Sub Title (in English) | |
| Keyword(1) | direct-sequence code-division multiple-access |
| Keyword(2) | frequency-selective fading |
| Keyword(3) | multiuser detection |
| Keyword(4) | channel estimation |
| Keyword(5) | replica method |
| Keyword(6) | spectral efficiency |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Keigo Takeuchi |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 2nd Author's Name | Mikko Vehkaperae |
| 2nd Author's Affiliation | Norwegian University of Science and Technology (NTNU) |
| 3rd Author's Name | Toshiyuki Tanaka |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 4th Author's Name | Ralf R. Mueller |
| 4th Author's Affiliation | Norwegian University of Science and Technology (NTNU) |
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| Speaker | Author-1 |
| Date Time | 2008-07-25 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | WBS |
| Paper # | SIP2008-84, WBS2008-22 |
| Volume (vol) | vol.108 |
| Number (no) | no.164(SIP), no.166(WBS) |
| Page | pp.43-48 |
| #Pages | 6 |
| Date of Issue | 2008-07-18 (SIP, WBS) |
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