| Presentation | 2009-12-18 Spectrum Property of DFTS-OFDM Transmission with Nonlinear Distortion Yuichiro FUKUDA, Shigeru TOMISATO, Masaharu HATA, Hiromasa FUJII, Takahiro ASAI, Yukihiko OKUMURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper evaluates spectrum property of DFTS-OFDM transmission with non-linear distortion of a transmission power amplifier by computer simulations. N-times DFTS-OFDM transmission, which uses plural DFTs, and Clustered DFTS-OFDM transmission, in which DFT output signals are divided into plural clusters, are used in the simulations. The simulation results show that the PAPR of N-times DFTS-OFDM transmission with four DFTs increases by 2.0dB at the maximum compared with that with one DFT. In Clustered DFTS-OFDM transmission with four clusters, the maximum PAPR increase is 1.4dB. Although the out-of-band distortion power ratio with the input back-off value of 4dB is -30dB in both transmission systems, the devised sub-carrier mapping can reduce the occupied bandwidth of the distortion power. Clustered DFTS-OFDM transmission can especially reduce in-band distortion power by 4.5dB compared with N-times DFTS-OFDM transmission. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / OFDMA / DFTS-OFDM / Nonlinear Distortion / PAPR |
| Paper # | RCS2009-195 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2009/12/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spectrum Property of DFTS-OFDM Transmission with Nonlinear Distortion |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | OFDMA |
| Keyword(3) | DFTS-OFDM |
| Keyword(4) | Nonlinear Distortion |
| Keyword(5) | PAPR |
| 1st Author's Name | Yuichiro FUKUDA |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University() |
| 2nd Author's Name | Shigeru TOMISATO |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 3rd Author's Name | Masaharu HATA |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 4th Author's Name | Hiromasa FUJII |
| 4th Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 5th Author's Name | Takahiro ASAI |
| 5th Author's Affiliation | Research Laboratories, NTT DOCOMO, NC. |
| 6th Author's Name | Yukihiko OKUMURA |
| 6th Author's Affiliation | Research Laboratories, NTT DOCOMO, NC. |
| Date | 2009-12-18 |
| Paper # | RCS2009-195 |
| Volume (vol) | vol.109 |
| Number (no) | 341 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |