| Presentation | 2003/11/11 Adaptive Cancellation of Microwave Oven Interference in WLAN Links Masanobu Nakatsuka, Yasushi Matsumoto, Katsumi Fujii, Akira Sugiura, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, Wireless LAN systems in the 2.4GHz band are becoming widespread. However, this frequency band is allocated to ISM (Industrial, Scientific, Medical) equipment. Hence, WLAN systems may suffer from interference caused by the electromagnetic noises of ISM equipment, especially microwave ovens. In this report, the use of adaptive filters is studied in order to suppress the microwave oven interference in DS-SS (Direct Sequence Spread Spectrum) WLAN systems by using the fact that an oven noise has CW-like characteristics. The results of numerical simulations clearly demonstrate the effectiveness of adaptive filters to suppress the oven noises. Great improvement in BER performance can be obtained in the presence of transformer-type microwave oven noises. As for inverter-type microwave oven noises, which has much faster frequency variation than transformer type, the noise can be successfullv suppressed bv optimizing the number of filter taps. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive filter / electromagnetic disturbance / microwave oven / ISM band / wireless LAN / spread spectrum |
| Paper # | EMCJ2003-97 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2003/11/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive Cancellation of Microwave Oven Interference in WLAN Links |
| Sub Title (in English) | |
| Keyword(1) | adaptive filter |
| Keyword(2) | electromagnetic disturbance |
| Keyword(3) | microwave oven |
| Keyword(4) | ISM band |
| Keyword(5) | wireless LAN |
| Keyword(6) | spread spectrum |
| 1st Author's Name | Masanobu Nakatsuka |
| 1st Author's Affiliation | RIEC, Tohoku University() |
| 2nd Author's Name | Yasushi Matsumoto |
| 2nd Author's Affiliation | RIEC, Tohoku University |
| 3rd Author's Name | Katsumi Fujii |
| 3rd Author's Affiliation | RIEC, Tohoku University |
| 4th Author's Name | Akira Sugiura |
| 4th Author's Affiliation | RIEC, Tohoku University |
| Date | 2003/11/11 |
| Paper # | EMCJ2003-97 |
| Volume (vol) | vol.103 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |