| Presentation | 2002/1/4 A Study of Adaptive Modulation Method for Private Mobile Radio Koji KONDO, Takanobu AKIBA, Tadashi TERAI, Fumihiro SUNADA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new adaptive modulation method with both the instantaneous channel characteristics estimator and the maximum Doppler frequency estimator for Private Mobile Radio. The maximum Doppler frequency estimator is based on taking the time average of the normalized moving distance of pilot symbols on IQ-plane. Our proposal is to classify the estimated Doppler frequency fd by some thresholds, and carry out the various modulation control (the switch of adaptive modulation mode / fixed modulation mode, the change of selection table for modulation level), according to the resulting fd class. Therefore, this method can be applied to the fast fading channe1.This paper also reports the computer simulation results for our proposal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive modulation method / multi-path fading / maximum / Doppler frequency / private mobile radio / fading compensation / pilot symbol |
| Paper # | 2001-DSP-176,2001-SAT-134,2001-RCS-234 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2002/1/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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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) | A Study of Adaptive Modulation Method for Private Mobile Radio |
| Sub Title (in English) | |
| Keyword(1) | adaptive modulation method |
| Keyword(2) | multi-path fading |
| Keyword(3) | maximum |
| Keyword(4) | Doppler frequency |
| Keyword(5) | private mobile radio |
| Keyword(6) | fading compensation |
| Keyword(7) | pilot symbol |
| 1st Author's Name | Koji KONDO |
| 1st Author's Affiliation | YRP Advanced Mobile Communication Systems Research Laboratories Co., Ltd.() |
| 2nd Author's Name | Takanobu AKIBA |
| 2nd Author's Affiliation | YRP Advanced Mobile Communication Systems Research Laboratories Co., Ltd. |
| 3rd Author's Name | Tadashi TERAI |
| 3rd Author's Affiliation | Mitsubishi Space Software Co., Ltd. |
| 4th Author's Name | Fumihiro SUNADA |
| 4th Author's Affiliation | Mitsubishi Space Software Co., Ltd. |
| Date | 2002/1/4 |
| Paper # | 2001-DSP-176,2001-SAT-134,2001-RCS-234 |
| Volume (vol) | vol.101 |
| Number (no) | 542 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |