| Presentation | 2021-03-04 Performance Evaluation of Digital Pre-Distortion based Linearizer using Operation Point Estimation Pilot for Mobile Terminal in Non-linear HPA with AM/AM and AM/PM Characteristics Atsushi Masubuchi, Akira Tada, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the increase in uplink speeds and the use of millimeter wave bands, it is required to futher improve the power utilization efficiency of HPA (High Power Amplifier) in mobile terminals, in addition to spectrum efficiency. However, when HPAs are used with low OBO (Output Back Off), ACLP (Adjacent Channel Leakage Power) increases due to tis nonlinear characteristics, resulting in spectrum efficiency degradation. As a solution to solve this problem, the authors have proposed a DPD (Digital Pre-distortion) -based HPA linearizer using pilot signals to estimate and control the operating point of HPA without an auxiliary receiver for DPD control. This report describes performance evaluation of the proposed DPD-based HPA linearizer using the operation point estimation pilot when two HPA models with both AM/AM and AM/PM conversion characteristics are used and shows the operation point estimation performance and ACLP improvement |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Pilot signal / AM/AM / AM/PM / Digital pre-distortion / ALCP / HPA |
| Paper # | SRW2020-59 |
| Date of Issue | 2021-02-24 (SRW) |
| Conference Information | |
| Committee | RCS / SR / SRW |
|---|---|
| Conference Date | 2021/3/3(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Masayuki Ariyoshi(NEC) / Satoshi Denno(Okayama Univ.) |
| Vice Chair | Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) |
| Secretary | Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hanako Noda |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) / Masaaki Fuse(Anritsu) / Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Evaluation of Digital Pre-Distortion based Linearizer using Operation Point Estimation Pilot for Mobile Terminal in Non-linear HPA with AM/AM and AM/PM Characteristics |
| Sub Title (in English) | |
| Keyword(1) | Pilot signal |
| Keyword(2) | AM/AM |
| Keyword(3) | AM/PM |
| Keyword(4) | Digital pre-distortion |
| Keyword(5) | ALCP |
| Keyword(6) | HPA |
| 1st Author's Name | Atsushi Masubuchi |
| 1st Author's Affiliation | The Graduate School Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Akira Tada |
| 2nd Author's Affiliation | The Graduate School Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Masahiro Umehira |
| 3rd Author's Affiliation | The Graduate School Ibaraki University(Ibaraki Univ.) |
| 4th Author's Name | Xiaoyan Wang |
| 4th Author's Affiliation | The Graduate School Ibaraki University(Ibaraki Univ.) |
| 5th Author's Name | Shigeki Takeda |
| 5th Author's Affiliation | The Graduate School Ibaraki University(Ibaraki Univ.) |
| Date | 2021-03-04 |
| Paper # | SRW2020-59 |
| Volume (vol) | vol.120 |
| Number (no) | SRW-406 |
| Page | pp.pp.29-34(SRW), |
| #Pages | 6 |
| Date of Issue | 2021-02-24 (SRW) |