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| Presentation | 2008-11-20 11:10 Efficient Signal Detection for Block Spreading CDMA Signals Based on the Expectation Maximization Algorithm Shuhei Sugiyama, Kohei Otake (Hosei Univ.)  RCS2008-143 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Block-Spread CDMA (BS/CDMA) system has been thought as an effective communication system because of enabling MUI-free transmission even under the multi-path environments. Although the system is MUI-free, there occurs interference on each data-block, that is, inter-symbol interference (ISI), and the MMSE detector to suppress it, is reported. In this paper, we propose an efficient scheme in introducing the expectation maximization algorithm (EMA) to the BS/CDMA signal detection, aimed to outperform the MMSE detector. Specifically, whereas the observed received data is subjected to the ISI in nature, we specify the complete data in the EMA to be obtained by decomposing it into each data symbol components, which results in the independent symbol update processing in the M-step and thus leads to low computational complexity. The computer simulation results show that the proposed detector significantly outperforms the conventional MMSE detector in terms of BER performance. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | BS/CDMA / EM Algorithm / Complete Data / Antenna Array / Time-domain Detection / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 305, RCS2008-143, pp. 77-82, Nov. 2008. | |
| Paper # | RCS2008-143 | |
| Date of Issue | 2008-11-12 (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 | RCS2008-143 |
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| Conference Information | |
| Committee | AP RCS |
| Conference Date | 2008-11-19 - 2008-11-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kanazawa Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, MIMO, RF Signal Processing , etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2008-11-AP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Efficient Signal Detection for Block Spreading CDMA Signals Based on the Expectation Maximization Algorithm |
| Sub Title (in English) | |
| Keyword(1) | BS/CDMA |
| Keyword(2) | EM Algorithm |
| Keyword(3) | Complete Data |
| Keyword(4) | Antenna Array |
| Keyword(5) | Time-domain Detection |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Shuhei Sugiyama |
| 1st Author's Affiliation | Hosei University (Hosei Univ.) |
| 2nd Author's Name | Kohei Otake |
| 2nd Author's Affiliation | Hosei University (Hosei Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-11-20 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2008-143 |
| Volume (vol) | vol.108 |
| Number (no) | no.305 |
| Page | pp.77-82 |
| #Pages | 6 |
| Date of Issue | 2008-11-12 (RCS) |
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