| Presentation | 2021-10-21 [Poster Presentation] Efforts to construct wireless experiment systems on in-band full-duplex Yuichi Miyaji, Hideyuki Uehara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been studying in-band full-duplex as a technology for effective use of radio resources. In particular, we are tackling digital self-interference cancellation to realize in-band full-duplex. In this poster presentation, we introduce our efforts to construct a wireless experiment system to evaluate the performance of digital self-interference cancellation. We use Universal Software Radio Peripherals (USRPs), one of the software radios, to construct the experiment system. The currently available USRPs do not have in-band full-duplex capability, limiting the evaluation of digital self-interference cancellation performance. This limitation is the phase noise caused by the local oscillators being separated between the transmitter and receiver. Due to this phase noise, the cancellation performance does not improve even if the amplifier's nonlinearity and the mixer's imbalance are faithfully learned and reproduced. Two prototypes that do not deal with this phase noise and two prototypes that deal with this phase noise in constructing a wireless experiment system are introduced. In addition, we explain the effect on the performance evaluation of digital self-interference cancellation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | in-band full-duplex / self-interference canceller / transceiver impairments / digital signal processing / wireless experiment system |
| Paper # | RCS2021-128 |
| Date of Issue | 2021-10-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2021/10/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima |
| Assistant | 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 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) | [Poster Presentation] Efforts to construct wireless experiment systems on in-band full-duplex |
| Sub Title (in English) | |
| Keyword(1) | in-band full-duplex |
| Keyword(2) | self-interference canceller |
| Keyword(3) | transceiver impairments |
| Keyword(4) | digital signal processing |
| Keyword(5) | wireless experiment system |
| 1st Author's Name | Yuichi Miyaji |
| 1st Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| 2nd Author's Name | Hideyuki Uehara |
| 2nd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| Date | 2021-10-21 |
| Paper # | RCS2021-128 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-210 |
| Page | pp.pp.56-56(RCS), |
| #Pages | 1 |
| Date of Issue | 2021-10-14 (RCS) |