| Presentation | 1998/1/22 Code-Aided DS/CDMA Communications for Interference Suppression Norishiro Takahashi, Kunio Oishi, Shoichiro Yamaguchi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents adaptive algorithms, which can solve the multiple access interference (MAI) problem and the near-far problem by using the variable step gain (VS), based on Blind projaction algorithm (BPA) in DS/CDMA. To begin with, we make use of the technique to suppress MAI by BPA which does not involve training mode and uses the norm of the error function without the desired signal. Furthermore, we improve the convergence speed and the convergence accuracy in the BPA by using the VS. On the other hand we add the term of the mean output magunitude (MOM) to the error function to solve the near-far problem. And we adapt the VS to the BPA which adaptively minimizes the MOM. The computer simulations for the signal-to-interference-ratio (SIR) value and the bit-error-rate (BER) value show that the bit-error rate of the proposed algorithms is better than one of the conventional BPA, the bit-error accuracy of the proposed algorithms is as the same as one of the conventional BPA, and the convergence speed of the proposed algorithms is faster than one of the conventional BPA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS/CDMA / Adaptive signal processing / Interference suppression / Blind algorithm / Projection algorithm / Variable step gain. |
| Paper # | SAT97-91 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 1998/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Code-Aided DS/CDMA Communications for Interference Suppression |
| Sub Title (in English) | |
| Keyword(1) | DS/CDMA |
| Keyword(2) | Adaptive signal processing |
| Keyword(3) | Interference suppression |
| Keyword(4) | Blind algorithm |
| Keyword(5) | Projection algorithm |
| Keyword(6) | Variable step gain. |
| 1st Author's Name | Norishiro Takahashi |
| 1st Author's Affiliation | Systems Electronics, Tokyo Engineering University Graduate School() |
| 2nd Author's Name | Kunio Oishi |
| 2nd Author's Affiliation | Department of Electronics, Faculty of Engineering, Tokyo Engineering University |
| 3rd Author's Name | Shoichiro Yamaguchi |
| 3rd Author's Affiliation | Systems Electronics, Tokyo Engineering University Graduate School |
| Date | 1998/1/22 |
| Paper # | SAT97-91 |
| Volume (vol) | vol.97 |
| Number (no) | 486 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |