| Presentation | 2001/3/23 On asynchronous DS/CDMA using spreading sequences of different code length and applications of adaptive filters Takayuki Komori, Masaaki Tahara, Masanori Hamamura, Shin'ichi Tachikawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we discuss some applications of adaptive filters in asynohronous DS/CDMA using spreading sequences of different code length. In asynchronous DS/CDMA with same code length, the adaptive filter can suppress the interferences because it operates to orthogonalize to them. In a different code length system, perfect orthogonalization to the interferences is difficult, however, some suppression effect by the adaptive filter is expected. Then we examine the effect by using the adaptive filter on time domain or the adaptive filter on frequency domain. Further, we propose a novel melhod of interference suppression by using power spectrum and show the effect. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | asynchronous DS/CDMA / different code length / adaptive filter / freqnency domain / power spectrum |
| Paper # | CAS2000-139,DSP2000-197,CS2000-159 |
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| Conference Information | |
| Committee | CS |
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| Conference Date | 2001/3/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Systems (CS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On asynchronous DS/CDMA using spreading sequences of different code length and applications of adaptive filters |
| Sub Title (in English) | |
| Keyword(1) | asynchronous DS/CDMA |
| Keyword(2) | different code length |
| Keyword(3) | adaptive filter |
| Keyword(4) | freqnency domain |
| Keyword(5) | power spectrum |
| 1st Author's Name | Takayuki Komori |
| 1st Author's Affiliation | Tachikawa lab., Faculty of Engineering, Nagoya University of Technology() |
| 2nd Author's Name | Masaaki Tahara |
| 2nd Author's Affiliation | Tachikawa lab., Faculty of Engineering, Nagoya University of Technology |
| 3rd Author's Name | Masanori Hamamura |
| 3rd Author's Affiliation | Department of Information Systems Engineering, Kochi University of Technology |
| 4th Author's Name | Shin'ichi Tachikawa |
| 4th Author's Affiliation | Tachikawa lab., Faculty of Engineering, Nagoya University of Technology |
| Date | 2001/3/23 |
| Paper # | CAS2000-139,DSP2000-197,CS2000-159 |
| Volume (vol) | vol.100 |
| Number (no) | 722 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |