| Presentation | 2019-03-08 A Study on PAPR Reduction of DFT-s-OFDM Signals via Phase Rotation Hikaru Kawasaki, Kentaro Ishizu, Fumihide Kojima, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | DFT-s-OFDM has been adopted in the 4G LTE uplink (UL) which is induced by DFT-precoding to reduce high peak-to-average-power ratio (PAPR) of usual OFDM signals. In 5G, demands to further reduce PAPR of UL signals get stronger to save power consumption and implementation cost for new services of internet of things and device-to-device communications. This study reveals theoretical analyses on PAPR reduction schemes by phase rotation, and as a result, proposes a novel scheme named as π/2-4PAM. Compared with conventional π/4-QPSK, π/2-4PAM provides equivalent PAPR performance with high computational efficiency although the BER are degraded. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DFT-s-OFDM / PAPR / phase rotation |
| Paper # | CAS2018-141,CS2018-109 |
| Date of Issue | 2019-03-01 (CAS, CS) |
| Conference Information | |
| Committee | CAS / CS |
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| Conference Date | 2019/3/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shonan Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
| Chair | Hideaki Okazaki(Shonan Inst. of Tech.) / Hidenori Nakazato(Waseda Univ.) |
| Vice Chair | Taizo Yamawaki(Hitachi) / Jun Terada(NTT) |
| Secretary | Taizo Yamawaki(Shonan Inst. of Tech.) / Jun Terada(Hitachi) |
| Assistant | Motoi Yamaguchi(Renesas Electronics) / Kazutaka Hara(NTT) / Kentaro Toyoda(Keio Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Circuits and Systems / Technical Committee on 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 PAPR Reduction of DFT-s-OFDM Signals via Phase Rotation |
| Sub Title (in English) | |
| Keyword(1) | DFT-s-OFDM |
| Keyword(2) | PAPR |
| Keyword(3) | phase rotation |
| 1st Author's Name | Hikaru Kawasaki |
| 1st Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 2nd Author's Name | Kentaro Ishizu |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 3rd Author's Name | Fumihide Kojima |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| Date | 2019-03-08 |
| Paper # | CAS2018-141,CS2018-109 |
| Volume (vol) | vol.118 |
| Number (no) | CAS-488,CS-489 |
| Page | pp.pp.15-20(CAS), pp.15-20(CS), |
| #Pages | 6 |
| Date of Issue | 2019-03-01 (CAS, CS) |