| Presentation | 2021-08-24 Design of Multi-carrier Pilot Signals for Operation Point Estimation in Digital Pre-Distortion based Linearizer Atushi Masubuchi, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Mobile terminal is required to improve the power utilization efficiency of HPA (High Power Amplifier) because of the increase of uplink transmission rate and utilization of millimeter-wave bands. Small OBO (Output Back Off) operation improves HPA power utilization efficiency however it increases ACLP (Adjacent Channel Leakage Power) due to HPA nonlinearity, resulting in degradation of spectrum efficiency. The authors have proposed a simplified DPD (Digital Pre-distortion) type linearizer for mobile terminal application, which does not require an auxiliary receiver and estimates its operation point by using the multi-carrier pilot signal, however more investigation is required in multi-carrier pilot signal design. This report describes the design of the multi-carrier pilot signal using Babcock frequency assignment according to the signal bandwidth. It also shows evaluation results of the operation point estimation performance of the multi-frequency pilot signal and its ACLP reduction performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multi-carrier Pilot Signal / HPA / non-linear / AM/AM / AM/PM / Digital pre-distortion / ALCP |
| Paper # | SRW2021-13 |
| Date of Issue | 2021-08-17 (SRW) |
| Conference Information | |
| Committee | SRW |
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| Conference Date | 2021/8/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | WLAN， WPAN， Ad-hoc, mmWave, etc. |
| Chair | Hanako Noda(Anritsu) |
| Vice Chair | Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Keiichi Mizutani(NTT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada |
| Assistant | Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Multi-carrier Pilot Signals for Operation Point Estimation in Digital Pre-Distortion based Linearizer |
| Sub Title (in English) | |
| Keyword(1) | Multi-carrier Pilot Signal |
| Keyword(2) | HPA |
| Keyword(3) | non-linear |
| Keyword(4) | AM/AM |
| Keyword(5) | AM/PM |
| Keyword(6) | Digital pre-distortion |
| Keyword(7) | ALCP |
| 1st Author's Name | Atushi Masubuchi |
| 1st Author's Affiliation | The Graduate School of Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Masahiro Umehira |
| 2nd Author's Affiliation | The Graduate School of Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Xiaoyan Wang |
| 3rd Author's Affiliation | The Graduate School of Ibaraki University(Ibaraki Univ.) |
| 4th Author's Name | Shigeki Takeda |
| 4th Author's Affiliation | The Graduate School of Ibaraki University(Ibaraki Univ.) |
| Date | 2021-08-24 |
| Paper # | SRW2021-13 |
| Volume (vol) | vol.121 |
| Number (no) | SRW-145 |
| Page | pp.pp.1-6(SRW), |
| #Pages | 6 |
| Date of Issue | 2021-08-17 (SRW) |