Paper Abstract and Keywords |
Presentation |
2013-01-29 14:55
Performance Evaluation of Spreading Codes with Negative Auto-Correlation Based on Gold Sequences and Chaos Theory
-- BER in Asynchronous DS/CDMA Communications under AWGN Environment -- Satoshi Abe, Akio Tsuneda (Kumamoto Univ.) CAS2012-87 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In asynchronous DS/CDMA communications, spreading codes with appropriate negative auto-correlation can reduce bit error rate (BER) compared with the conventional Gold sequences generated by linear feedback shift registers (LFSRs). Such negatively auto-correlated spreading codes can be generated by 1-dimensional chaotic maps but the code generators, in general, are more complex and expensive than the conventional linear feedback shift registers (LFSRs). We proposed design methods of spreading codes with negative auto-correlation based on Gold sequences and the chaos theory for the Bernoulli map. By computer simulations of asynchronous DS/CDMA communications, we showed that the proposed sequences can reduce the BER compared with the original Gold sequences. In this paper, we evaluate the BER performance of the proposed spreading codes with negative auto-correlation in asynchronous DS/CDMA communications under additive white Gaussian noise (AWGN) environment. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Spreading code / CDMA / negative correlation / BER / AWGN / Gold sequence / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 418, CAS2012-87, pp. 121-124, Jan. 2013. |
Paper # |
CAS2012-87 |
Date of Issue |
2013-01-21 (CAS) |
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) |
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CAS2012-87 |
Conference Information |
Committee |
CAS |
Conference Date |
2013-01-28 - 2013-01-29 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Beppu International Convention Center |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
CAS |
Conference Code |
2013-01-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Performance Evaluation of Spreading Codes with Negative Auto-Correlation Based on Gold Sequences and Chaos Theory |
Sub Title (in English) |
BER in Asynchronous DS/CDMA Communications under AWGN Environment |
Keyword(1) |
Spreading code |
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CDMA |
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negative correlation |
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BER |
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AWGN |
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Gold sequence |
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1st Author's Name |
Satoshi Abe |
1st Author's Affiliation |
Kumamoto University (Kumamoto Univ.) |
2nd Author's Name |
Akio Tsuneda |
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Kumamoto University (Kumamoto Univ.) |
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Speaker |
Author-1 |
Date Time |
2013-01-29 14:55:00 |
Presentation Time |
20 minutes |
Registration for |
CAS |
Paper # |
CAS2012-87 |
Volume (vol) |
vol.112 |
Number (no) |
no.418 |
Page |
pp.121-124 |
#Pages |
4 |
Date of Issue |
2013-01-21 (CAS) |
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