| Presentation | 2018-06-22 Combination of Beamforming with Per-Antenna Power Constraint and Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Multiuser Massive MIMO-OFDM Transmission Mikihito Suzuki, Kiichi Tateishi, Kenichi Higuchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we investigate a combination of the beamforming (BF) with per-antenna power limitation and adaptive peak-to-average power ratio (PAPR) reduction method using null space of multiple-input multiple-output (MIMO) channel in multiuser massive MIMO-orthogonal frequency division multiplexing (OFDM) transmission. To improve the tradeoff between the channel capacity and PAPR, it is necessary to consider both mutually related BF control and PAPR reduction. In the proposed method, PAPR is first suppressed by generating a BF matrix which limits the transmission power variation among transmitter antennas by using a firefly algorithm (FA). The subsequent adaptive PAPR reduction method further reduces the PAPR while mitigating the data throughput degradation due to the interference from the PAPR reduction signal generated by the clipping and filtering (CF) algorithm, by restricting the transmission of PAPR reduction signal only to the null space of MIMO channel. Computer simulation results shows that the proposed method can improve PAPR versus channel capacity characteristics compared with the case using conventional zero forcing (ZF)-based BF. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PAPR / OFDM / MIMO / Massive MIMO / Beamforming / Clipping and filtering / Firefly algorithm |
| Paper # | RCS2018-63 |
| Date of Issue | 2018-06-13 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2018/6/20(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagasaki University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Chair | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| 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) | Combination of Beamforming with Per-Antenna Power Constraint and Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Multiuser Massive MIMO-OFDM Transmission |
| Sub Title (in English) | |
| Keyword(1) | PAPR |
| Keyword(2) | OFDM |
| Keyword(3) | MIMO |
| Keyword(4) | Massive MIMO |
| Keyword(5) | Beamforming |
| Keyword(6) | Clipping and filtering |
| Keyword(7) | Firefly algorithm |
| 1st Author's Name | Mikihito Suzuki |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| 2nd Author's Name | Kiichi Tateishi |
| 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 | 2018-06-22 |
| Paper # | RCS2018-63 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-101 |
| Page | pp.pp.167-172(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-06-13 (RCS) |