| Presentation | 2018-03-13 A Proposal of Orthogonal Precoded DFT-s-OFDM for Spectrum Sharing 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 which is induced by DFT-precoding to reduce high peak-to-average-power ratio (PAPR) of usual OFDM signals, on the other hand, its high spectral sidelobes remain, resulting in high out-of-band emission (OOBE). This paper proposes a novel precoding scheme named as orthogonal precoded DFT-s-OFDM for spectrum sharing by applying the idea of orthogonal precoding proposed for OOBE suppression of OFDM signals. Numerical experiments show that its OOBE is suppressed effectively by about 30 dB in LTE systems of bandwidth 1.4 MHz and 10 MHz as reserving all advantages of orthogonal precoding although it causes an acceptable penalty in the PAPR reduction of DFT-s-OFDM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Out-of-band emission suppression / DFT-s-OFDM / Spectrum Sharing in Dynamic Spectrum Access |
| Paper # | CAS2017-146,CS2017-100 |
| Date of Issue | 2018-03-05 (CAS, CS) |
| Conference Information | |
| Committee | CS / CAS |
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| Conference Date | 2018/3/12(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nishijin Plaza, Kyushu University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
| Chair | Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Mitsuru Hiraki(Renesas) |
| Vice Chair | Hidenori Nakazato(Waseda Univ.) / Hideaki Okazaki(Shonan Inst. of Tech.) |
| Secretary | Hidenori Nakazato(Kyushu Univ.) / Hideaki Okazaki(NTT) |
| Assistant | Kenji Kanai(Waseda Univ.) / Kazutaka Hara(NTT) / Yohei Nakamura(Hitachi) |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems / Technical Committee on Circuits and Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Orthogonal Precoded DFT-s-OFDM for Spectrum Sharing |
| Sub Title (in English) | |
| Keyword(1) | Out-of-band emission suppression |
| Keyword(2) | DFT-s-OFDM |
| Keyword(3) | Spectrum Sharing in Dynamic Spectrum Access |
| 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 | 2018-03-13 |
| Paper # | CAS2017-146,CS2017-100 |
| Volume (vol) | vol.117 |
| Number (no) | CAS-503,CS-504 |
| Page | pp.pp.75-80(CAS), pp.75-80(CS), |
| #Pages | 6 |
| Date of Issue | 2018-03-05 (CAS, CS) |