| Presentation | 2006-12-14 Super Amplification of SNR with an Independent Component Analysis in Chaos CDMA Ryo TAKAHASHI, Song-Ju KIM, Ken UMENO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The signal-to-noise ratios (SNRs) of K signals recovered by the Independent Component Analysis (ICA), namely passed through the ICA filter, are calculated numerically and analytically. We can estimate the SNRs for any kind of signals passed through the ICA filter by using these analytical forms. The SNR of K signals depends only on the convergence property of the statistical average of the signals. We investigate the SNRs of the chaotic signals generated by Chebyshev map with the ICA filter concretely. It is found that these quantities with the ICA filter are much larger than those of the original signals although the waveforms of the signals passed through the ICA filter are almost the same as those of the original signals. Using this effect, we can generate much more useful speading sequences used in CDMA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | independent component analysis / code division multiple access / spreading sequence / chaos / signal-to-noise ratio / interference noise |
| Paper # | NLP2006-102 |
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| Conference Information | |
| Committee | NLP |
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| Conference Date | 2006/12/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Nonlinear Problems (NLP) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Super Amplification of SNR with an Independent Component Analysis in Chaos CDMA |
| Sub Title (in English) | |
| Keyword(1) | independent component analysis |
| Keyword(2) | code division multiple access |
| Keyword(3) | spreading sequence |
| Keyword(4) | chaos |
| Keyword(5) | signal-to-noise ratio |
| Keyword(6) | interference noise |
| 1st Author's Name | Ryo TAKAHASHI |
| 1st Author's Affiliation | National Institute of Information and Communications Technology() |
| 2nd Author's Name | Song-Ju KIM |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology |
| 3rd Author's Name | Ken UMENO |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology |
| Date | 2006-12-14 |
| Paper # | NLP2006-102 |
| Volume (vol) | vol.106 |
| Number (no) | 414 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |