| Presentation | 2021-01-22 A Study on Self-Interference Canceller Based In-Band Full-Duplex using Software Defined Radio in Pilot Contamination Environments Kensuke Tomita, Shinsuke Ibi, Takumi Takahashi, Hisato Iwai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | IBFD (In-Band Full-Duplex), which is a new communication technology attracting attention for future wireless communication systems, can transmit and receive signals simultaneously in the same frequency band. For realizing IBFD, SI (Self-Interference) cancelation is essential. SI is eliminated by subtracting a replica of SI from the received signal. For generating the replica, the CSI (Channel State Information) of SI has to be estimated accurately by a pilot sequence. The estimated CSI helps in generating SI replica with the aid of own transmitted signals which are known in each receiver. However, SI cannot be removed, and detection capability deteriorates without accurate CSI. Especially in pilot contamination environments, it is hard to obtain reliable CSI due to nonorthogonality of the pilot signals. Therefore, in this pa-per, we proposed a DASIC (Differential Active SI Canceller) incorporating the principle of differential codec without CSI estimation. The validity of the DASIC is demonstrated by experimental results using software defined radio USRP (Universal Software Radio Peripheral). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Full-duplex / Pilot contamination / Self-interference canceller / Differential encoding / Software defined radio |
| Paper # | IT2020-93,SIP2020-71,RCS2020-184 |
| Date of Issue | 2021-01-14 (IT, SIP, RCS) |
| Conference Information | |
| Committee | SIP / IT / RCS |
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| Conference Date | 2021/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kazunori Hayashi(Kyoto Univ.) / Tadashi Wadayama(Nagoya Inst. of Tech.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Yukihiro Bandou(NTT) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) / Tetsuya Kojima(Tokyo Kosen) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Yukihiro Bandou(Hosei Univ.) / Toshihisa Tanaka(Waseda Univ.) / Tetsuya Kojima(Yamaguchi Univ.) / Fumiaki Maehara(Saga Univ.) / Toshihiko Nishimura(Kyushu Univ.) / Tomoya Tandai(NEC) |
| Assistant | Yuichi Tanaka(Tokyo Univ. Agri.&Tech.) / Takahiro Ohta(Senshu 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 Signal Processing / Technical Committee on Information Theory / 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) | A Study on Self-Interference Canceller Based In-Band Full-Duplex using Software Defined Radio in Pilot Contamination Environments |
| Sub Title (in English) | |
| Keyword(1) | Full-duplex |
| Keyword(2) | Pilot contamination |
| Keyword(3) | Self-interference canceller |
| Keyword(4) | Differential encoding |
| Keyword(5) | Software defined radio |
| 1st Author's Name | Kensuke Tomita |
| 1st Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 3rd Author's Name | Takumi Takahashi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Hisato Iwai |
| 4th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2021-01-22 |
| Paper # | IT2020-93,SIP2020-71,RCS2020-184 |
| Volume (vol) | vol.120 |
| Number (no) | IT-320,SIP-321,RCS-322 |
| Page | pp.pp.164-169(IT), pp.164-169(SIP), pp.164-169(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-01-14 (IT, SIP, RCS) |