| Presentation | 2021-11-10 Optimization of Companding Parameters in In-Band Full Duplex Kota Okano, Kazuki Komatsu, Yuichi Miyaji, Hideyuki Uehara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In-band full-duplex utilizes the same frequency band to transmit and receive at the same time. However, the presence of self-interference (SI) makes demodulation difficult and must hence be cancelled. When using a high peak-to-average power ratio signal such as an orthogonal frequency division multiplexing signal, the nonlinear amplification of the power amplifier degrades the SI cancellation performance. Therefore, we have proposed a method to improve the amount of self-interference cancellation by using the companding method. Since the companding method degrades the BER performance of the desired signal, it is necessary to derive the optimum companding function from the viewpoint of BER. In this report, we optimize the root based, $mu$-law, and exponential companding parameters and reveal the amount of improvement in BER by the companding method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | In-band full duplex / Self-interference cancellation / Companding / OFDM |
| Paper # | RCS2021-145 |
| Date of Issue | 2021-11-03 (RCS) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2021/11/10(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NBC-Bekkan (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Hiroshi Yamada(Niigata Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) / Toshihiko Nishimura(National Defense Academy) / Tomoya Tandai(NEC) / Fumihide Kojima(Panasonic) |
| Assistant | Dr. Kim(Niigata Univ.) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimization of Companding Parameters in In-Band Full Duplex |
| Sub Title (in English) | |
| Keyword(1) | In-band full duplex |
| Keyword(2) | Self-interference cancellation |
| Keyword(3) | Companding |
| Keyword(4) | OFDM |
| 1st Author's Name | Kota Okano |
| 1st Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| 2nd Author's Name | Kazuki Komatsu |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 3rd Author's Name | Yuichi Miyaji |
| 3rd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| 4th Author's Name | Hideyuki Uehara |
| 4th Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| Date | 2021-11-10 |
| Paper # | RCS2021-145 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-234 |
| Page | pp.pp.13-18(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-11-03 (RCS) |