| Presentation | 2015-12-18 Adjacent channel interference performance improvement by weighted averaging technique for overlap FFT filter-bank Motohiro Tanabe, Akira Saito, Masahiro Umehira, Shigeki Takeda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The authors have been proposing a single-carrier modulation based wireless access scheme using overlap FFT filter-bank to enable flexible utilization of non-contiguous unused spectrum. As narrowband signal and wideband signals are transmitted from multiple wireless terminals, it is expected to improve adjacent channel leakage power (ACLP)/adjacent channel interference (ACI) performance for more flexible spectrum utilization. The authors reported ACI performance of the overlap FFT filter-bank can be improved by windowing technique and ACI performance is degraded due to discontinuous impulse response when connecting two successive waveform of two FFT/IFFT blocks. In order to solve this problem, this report proposes weighting and averaging technique to improve ACI performance for the overlap FFT filter-bank in combination with windowing technique. Computer simulation results confirm the proposed technique can improve ACI performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Overlap FFT / Filter-bank / Windowing / Weighted averaging / Adjacent channel Interference |
| Paper # | RCS2015-262 |
| 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) | Adjacent channel interference performance improvement by weighted averaging technique for overlap FFT filter-bank |
| Sub Title (in English) | |
| Keyword(1) | Overlap FFT |
| Keyword(2) | Filter-bank |
| Keyword(3) | Windowing |
| Keyword(4) | Weighted averaging |
| Keyword(5) | Adjacent channel Interference |
| 1st Author's Name | Motohiro Tanabe |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Akira Saito |
| 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 | Shigeki Takeda |
| 4th Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2015-12-18 |
| Paper # | RCS2015-262 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-369 |
| Page | pp.pp.109-114(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-12-10 (RCS) |