| Presentation | 2005-01-28 Automatic LUT Estimation for Baseband Predistortion Hiroyuki NAKAMURA, Kazuji WATANABE, Takashi MARUYAMA, Masashi NAKATSUGAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is important to estimate the I/O characteristic of the target amplifier to obtain better performance of the distortion compensation in baseband pre-distortion. Although estimation of AM-AM distortion compensation data with the amplification gain and the saturation power is relatively easy, it is difficult to estimate AM-PM distortion compensation data without considering its detailed circuit composition. This report proposes a new method that estimates AM-PM I/O characteristics by detecting out-band emission power. This method has features that determine AM-PM distortion compensation data to minimize out-band emission power. The numerical simulations that use 64QAM as a modulation method are carried out. It is clarified that proposed method can compensate AM-PM distortion excellently yet the AM-PM I/O characteristics are unknown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | predistortion / amplifier / AM-PM characteristics / control / out-band emission power |
| Paper # | CS2004-207,RCS2004-314 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2005/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Automatic LUT Estimation for Baseband Predistortion |
| Sub Title (in English) | |
| Keyword(1) | predistortion |
| Keyword(2) | amplifier |
| Keyword(3) | AM-PM characteristics |
| Keyword(4) | control |
| Keyword(5) | out-band emission power |
| 1st Author's Name | Hiroyuki NAKAMURA |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation() |
| 2nd Author's Name | Kazuji WATANABE |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 3rd Author's Name | Takashi MARUYAMA |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 4th Author's Name | Masashi NAKATSUGAWA |
| 4th Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| Date | 2005-01-28 |
| Paper # | CS2004-207,RCS2004-314 |
| Volume (vol) | vol.104 |
| Number (no) | 599 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |