| Presentation | 2015-12-18 A Consideration on Impact of DC Offset Error in Frequency Domain Equalization of DFTs-OFDM and SSB-DFTs-OFDM Shigeki Nihei, Hirokazu Fusayasu, Masahiro Umehira, Junichi Abe, Jun Mashino, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | DFTs-OFDM (DFT spread OFDM) and SSB-DFTs-OFDM (Single Side Band DFTs-OFDM) have lower PAPR than OFDM while maintaining the same spectrum efficiency and robustness to frequency selective fading as OFDM has. Thus, DFTs-OFDM and SSB-DFTs-OFDM are expected as promising solutions for broadband wireless transmission, but their bit error rate (BER) performances are degraded by DC offset error. This report evaluates BER performance of DFTs-OFDM and SSB-DFTs-OFDM in frequency selective fading when DC offset error exists, and reveals that BER performance degradation with DC offset error at the receiver side is significantly larger than that with DC offset error at the transmitter side when frequency domain equalization is performed. To solve this problem of SSB-DFTs-OFDM, this report proposes NDCS (Null DC Subcarrier) / DCSS (DC Subcarrier Shift)-SSB to be immune to DC offset error. Furthermore, it is shown that DCSS-SSB has lower PAPR than NDCS-SSB as DCSS-SSB is highly correlated to the original DFTs-OFDM. Simulation results confirm the proposed schemes are robust to DC offset error and DCSS-SSB is superior to NDCS-SSB in terms of PAPR and BER performance when non-linear amplifier is employed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DFTs-OFDM / SSB-DFTs-OFDM / Frequency Domain Equalization / DC offset error |
| Paper # | RCS2015-264 |
| Date of Issue | 2015-12-10 (RCS) |
| Conference Information | |
| Committee | NS / RCS |
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| Conference Date | 2015/12/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Matsuyama Community Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Ad-hoc Network, Ubiquitous Network, Wireless Communication, security, Multi-Access Network |
| Chair | Atsushi Hiramatsu(NTT-AT) / Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Hideki Tode(Osaka Pref. Univ.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) |
| Secretary | Hideki Tode(Univ. of Fukui) / Hidekazu Murata(NTT) / Satoshi Denno(Mitsubishi Electric) / Yukitoshi Sanada(NTT DoCoMo) |
| Assistant | Shohei Kamamura(NTT) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / 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) | A Consideration on Impact of DC Offset Error in Frequency Domain Equalization of DFTs-OFDM and SSB-DFTs-OFDM |
| Sub Title (in English) | |
| Keyword(1) | DFTs-OFDM |
| Keyword(2) | SSB-DFTs-OFDM |
| Keyword(3) | Frequency Domain Equalization |
| Keyword(4) | DC offset error |
| 1st Author's Name | Shigeki Nihei |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Hirokazu Fusayasu |
| 2nd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Masahiro Umehira |
| 3rd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 4th Author's Name | Junichi Abe |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 5th Author's Name | Jun Mashino |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2015-12-18 |
| Paper # | RCS2015-264 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-369 |
| Page | pp.pp.121-126(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-12-10 (RCS) |