| Presentation | 2017-07-21 Design and performance of a novel overlap FFT filter-bank using smoothing technique Motohiro Tanabe, Masahiro Umehira, Shigeki Takeda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Cognitive radio systems need a flexible wireless access capability which enables flexible utilization of discontinuous spectrum and flexible wireless access with mixed transmission/reception of narrowband and wideband signals. Furthermore, they need excellent adjacent channel leakage power (ACLP) / adjacent channel interference (ACI) performance for more flexible spectrum utilization. The authors have proposed a novel overlap FFT filter-bank using smoothing technique to improve ACLP.ACI by smoothing discontinuous impulse response when connecting two successive waveform of two FFT/IFFT blocks. The proposed FFT filter-band has different frequency response according to smoothing length, signal bandwidth and roll-off factor because the impulse response of the filter can be different according to roll-off factor, and signal bandwidth. This paper evaluates ACLP/ACI and EVM (Error Vector Magnitude) according to major design parameters i.e. smoothing length, roll-off factor and signal bandwidth and describes design and performance of the proposed FFT filter-bank. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Overlap FFT / Filter-bank / Smoothing technique / Adjacent channel Interference |
| Paper # | SR2017-57 |
| Date of Issue | 2017-07-12 (SR) |
| Conference Information | |
| Committee | NS / ASN / RCC / RCS / SR |
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| Conference Date | 2017/7/19(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Distributed Network, M2M (Machine-to-Machine), D2D (Device-to-Device)，etc. |
| Chair | Hideki Tode(Osaka Pref. Univ.) / Hiraku Okada(Nagoya Univ.) / Shinsuke Hara(Osaka City Univ.) / Hidekazu Murata(Kyoto Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) |
| Vice Chair | Yoshikatsu Okazaki(NTT) / Shigeki Shiokawa(KAIT) / Jin Nakazawa(Keio Univ.) / Satoru Yamano(NEC) / Kazunori Hayashi(Osaka City Univ.) / Ryu Miura(NICT) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) |
| Secretary | Yoshikatsu Okazaki(Kyushu Inst. of Tech.) / Shigeki Shiokawa(NTT) / Jin Nakazawa(NICT) / Satoru Yamano(Sophia Univ.) / Kazunori Hayashi(Kagawa Univ.) / Ryu Miura(Hokkaido Univ.) / Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda |
| Assistant | Kenichi Kashibuchi(NTT) / Hiroto Aida(Doshisha Univ.) / Tomoyuki Ota(Hiroshima City Univ.) / Tatsuya Kikuzuki(Fujitu Lab.) / Ryo Nakano(HITACHI) / Yoshifumi Hotta(Mitsubishi Electric) / Toshinori Kagawa(NICT) / Kentaro Kobayashi(Nagoya Univ.) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Reliable Communication and Control / Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design and performance of a novel overlap FFT filter-bank using smoothing technique |
| Sub Title (in English) | |
| Keyword(1) | Overlap FFT |
| Keyword(2) | Filter-bank |
| Keyword(3) | Smoothing technique |
| Keyword(4) | Adjacent channel Interference |
| 1st Author's Name | Motohiro Tanabe |
| 1st Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 2nd Author's Name | Masahiro Umehira |
| 2nd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| 3rd Author's Name | Shigeki Takeda |
| 3rd Author's Affiliation | Ibaraki University(Ibaraki Univ.) |
| Date | 2017-07-21 |
| Paper # | SR2017-57 |
| Volume (vol) | vol.117 |
| Number (no) | SR-133 |
| Page | pp.pp.167-172(SR), |
| #Pages | 6 |
| Date of Issue | 2017-07-12 (SR) |