| Presentation | 2017-03-01 Feature detection scheme using Cyclic Prefix (CP) in OFDM Signal Akihide Nagamine, Kanshiro Kashiki, Fumio Watanabe, Jiro Hirokawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the communication specification of the fifth generation mobile system, it is considered that frequency sharing will be examined, where several radio systems are operated. In order to promote such frequency effective system, a spectrum sensing technology with high performance is required. The authors have investigated the feature detection scheme using Cyclic Prefix (CP) in the OFDM signal. In this report, we implement this scheme in a hardware and investigate it using Radio Frequency (RF) signal. First, we address the design scheme appropriate for parameters in the embedded system. Then, we measure the signal feature value of an OFDM signal with varying the input C/N (Carrier to Noise power ratio) and investigate the probability performance regarding the signal detection. As a result, it is clarified that there exists an improvement limitation of the detection performance, which is achieved by the average operation in the signal processing. Such degradation matter has not been encountered in the past computer software simulation. We also describe that the limitation is analytically determined by the sampling rate error between at transmit and receive sides. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM signal / feature detection / Cyclic Prefix / hardware implementation / sampling rate error |
| Paper # | SR2016-97 |
| Date of Issue | 2017-02-22 (SR) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2017/3/1(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Hidekazu Murata(Kyoto Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.) |
| Vice Chair | Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
| Secretary | Satoshi Denno(Toshiba) / Yukitoshi Sanada(NTT DoCoMo) / Eisuke Fukuda(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(Tottori Univ.) / Suguru Kameda(NICT) / Masafumi Kato / Satoshi Denno |
| Assistant | Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Feature detection scheme using Cyclic Prefix (CP) in OFDM Signal |
| Sub Title (in English) | Hardware implementation of feature detector and its characteristics |
| Keyword(1) | OFDM signal |
| Keyword(2) | feature detection |
| Keyword(3) | Cyclic Prefix |
| Keyword(4) | hardware implementation |
| Keyword(5) | sampling rate error |
| 1st Author's Name | Akihide Nagamine |
| 1st Author's Affiliation | Tokyo Institute of Technology(Titech) |
| 2nd Author's Name | Kanshiro Kashiki |
| 2nd Author's Affiliation | KDDI Research, Inc.(KDDI Research) |
| 3rd Author's Name | Fumio Watanabe |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Titech) |
| 4th Author's Name | Jiro Hirokawa |
| 4th Author's Affiliation | Tokyo Institute of Technology(Titech) |
| Date | 2017-03-01 |
| Paper # | SR2016-97 |
| Volume (vol) | vol.116 |
| Number (no) | SR-480 |
| Page | pp.pp.35-40(SR), |
| #Pages | 6 |
| Date of Issue | 2017-02-22 (SR) |