Presentation 2022-03-04
Digital Self-Interference Canceller for 5G-based Full-Duplex Cellular System
Shota Mori, Keiichi Mizutani, Hiroshi Harada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) For increasing spectral efficiency toward the 6th generation mobile communication system, full-duplex cellular (FDC) system, which applies in-band full-duplex (IBFD) to the cellular system and can double spectral efficiency ideally, has been attracting. To realize FDC system, it is important to suppress the self-interference (SI), which occurs when transmitted signal is received by own receiver at a base station. Although many SI cancellations have already been proposed, the SI cancellation that take into account the 5G signal configuration and low-density parity-check (LDPC) code used in 5G have not been studied yet. In this report, we propose a digital SI cancellation to realize FDC system using 5G-based orthogonal frequency division multiplexing (OFDM) signal configuration. The proposed scheme modifies the demodulation reference signal (DMRS) configuration of 5G system to estimate SI channel with high accuracy for SI cancellation. The effectiveness of the proposed scheme is shown by computer simulation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 5G / 6G / In-Band Full-Duplex / Full-Duplex Cellular / Self-Interference / Self-Interference Cancellation
Paper # SRW2021-85
Date of Issue 2022-02-23 (SRW)

Conference Information
Committee RCS / SR / SRW
Conference Date 2022/3/2(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.) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu)
Vice Chair Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT)
Secretary Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Mie Univ.) / Osamu Takyu(Tokai Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hirokazu Sawada
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.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / 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) Digital Self-Interference Canceller for 5G-based Full-Duplex Cellular System
Sub Title (in English)
Keyword(1) 5G
Keyword(2) 6G
Keyword(3) In-Band Full-Duplex
Keyword(4) Full-Duplex Cellular
Keyword(5) Self-Interference
Keyword(6) Self-Interference Cancellation
1st Author's Name Shota Mori
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Keiichi Mizutani
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Hiroshi Harada
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2022-03-04
Paper # SRW2021-85
Volume (vol) vol.121
Number (no) SRW-393
Page pp.pp.66-71(SRW),
#Pages 6
Date of Issue 2022-02-23 (SRW)