| Presentation | 2018-10-19 [Invited Lecture] Analysis on the Performance of Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals Kenichi Higuchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper analyzes the impact of the applied beamforming (BF) method on the performance of our previously reported adaptive peak-to-average power ratio (PAPR) reduction method using the null space in multiple-input multiple-output (MIMO) channel for MIMO-orthogonal frequency division multiplexing (OFDM) signals. The adaptive PAPR reduction method using null space in MIMO channel can mitigate 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 in MIMO channel. Our previous investigation quantitatively revealed that the effect of the proposed PAPR reduction method is large when eigenmode MIMO is used as BF method compared to the case where zero forcing (ZF)-based BF is applied. Furthermore, the use of frequency-selective BF, where different BF matrices are applied to different frequency blocks, increases the performance gain of the proposed PAPR reduction method. This paper investigated several reasons for these phenomena, and discuss appropriate BF strategy to enhance the effect of the adaptive PAPR reduction method using null space in MIMO channel. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PAPR / OFDM / MIMO / Massive MIMO / Beamforming / Clipping and filtering |
| Paper # | RCS2018-172 |
| Date of Issue | 2018-10-11 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2018/10/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless 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) | [Invited Lecture] Analysis on the Performance of Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals |
| 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 |
| 1st Author's Name | Kenichi Higuchi |
| 1st Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Science) |
| Date | 2018-10-19 |
| Paper # | RCS2018-172 |
| Volume (vol) | vol.118 |
| Number (no) | RCS-254 |
| Page | pp.pp.115-120(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-10-11 (RCS) |