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| Paper Abstract and Keywords | ||
| Presentation | 2013-12-19 09:00 A Study on Optimization of Reciever Filter of Nallowband DS-CDM Transmission System Naoki Oyama, Makoto Taromaru (Fukuoka Univ.)  RCS2013-223 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Even when using spread spectrum (SS) modulation for a radio communication system, we have take into account the occupied frequency bandwidth due to the regulations or the standard it conforms to; therefore we have to bandlimit the SS transmission signal with a filter in some cases. We evaluated bit error rate (BER) performance due to additive white Gaussian noise (AWGN) of the nallowbanded DS-SS transmission system using Gaussian filter. Our computer simulation showed that the BER performance was just 1dB degraded from that of NRZ-pulse spreading without bandlimitation. However, the matched filter for the bandlimiting Gaussian filter is not optimum for AWGN channel any more in this case because a Gaussian filter causes intersymbol interference. It doesn't satisfy Nyquist first criterion. If we make the bandwidth of the filter at the receiver side a little wider than the matched filter, the ISI must be reduced and BER is expected to be reduced. In this study, we evaluated the BER performance and studied the effect of the bandwidth of the receiver side. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Spreading code / M-sequence / Correlation coefficient / DS-CDM / Gaussian filter / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 361, RCS2013-223, pp. 101-105, Dec. 2013. | |
| Paper # | RCS2013-223 | |
| Date of Issue | 2013-12-11 (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 | RCS2013-223 |
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| Conference Information | |
| Committee | RCS NS |
| Conference Date | 2013-12-18 - 2013-12-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sunport Hall Takamatsu |
| 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 | 2013-12-RCS-NS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Optimization of Reciever Filter of Nallowband DS-CDM Transmission System |
| Sub Title (in English) | |
| Keyword(1) | Spreading code |
| Keyword(2) | M-sequence |
| Keyword(3) | Correlation coefficient |
| Keyword(4) | DS-CDM |
| Keyword(5) | Gaussian filter |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoki Oyama |
| 1st Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
| 2nd Author's Name | Makoto Taromaru |
| 2nd Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-12-19 09:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2013-223 |
| Volume (vol) | vol.113 |
| Number (no) | no.361 |
| Page | pp.101-105 |
| #Pages | 5 |
| Date of Issue | 2013-12-11 (RCS) |
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