| Presentation | 2021-06-23 Investigation of PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals in Multiple-Antenna AF Relay Transmission Yuki Sekiguchi, Nobuhide Nonaka, Kenichi Higuchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the 5th generation mobile communication system and beyond, the importance of relay transmission increases in order to provide wide coverage of the high speed and high quality data transmission using higher carrier frequency band such as millimeter wave band. Assuming the multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) transmission as a baseline of the 5G system, mitigation of its high peak-to-average power ratio (PAPR) not only at the base station (BS) transmitter but also at the relay station (RS) transmitter is essential to achieve sufficient coverage enhancement from the usage of RS by reducing the transmission power backoff levels at the nonlinear power amplifier. In this paper, we propose to apply our previously reported adaptive PAPR reduction method using null space in MIMO channel for MIMO-OFDM transmission to RS. In this work, we assume an amplify-and-forward (AF)-type RS with multiple antennas. Computer simulation results show that PAPR-vs.-throughput is much improved by the proposed system compared to the conventional one thanks to the reduced interference levels from the PAPR reduction signal observed at the user terminal receiver. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PAPR / OFDM / Multiuser MIMO / AF relaying |
| Paper # | RCS2021-39 |
| Date of Issue | 2021-06-16 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2021/6/23(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Fumihide Kojima(NICT) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Fumihide Kojima(Panasonic) / Toshihiko Nishimura(NEC) / Tomoya Tandai |
| 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) | Investigation of PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals in Multiple-Antenna AF Relay Transmission |
| Sub Title (in English) | |
| Keyword(1) | PAPR |
| Keyword(2) | OFDM |
| Keyword(3) | Multiuser MIMO |
| Keyword(4) | AF relaying |
| 1st Author's Name | Yuki Sekiguchi |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Nobuhide Nonaka |
| 2nd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 3rd Author's Name | Kenichi Higuchi |
| 3rd Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2021-06-23 |
| Paper # | RCS2021-39 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-72 |
| Page | pp.pp.62-67(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-06-16 (RCS) |