| Presentation | 2016-03-03 Accuracy Improvement for Spectrum Database considering Primary Signal in Time Domain Under Fading Environment Hao Wang, Koya Sato, Takeo Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Radio Environment Database (RED), as a practical technology to radio propagation estimation, is a promising solution to address the problem of impending spectrum scarcity in spectrum sharing for cognitve radio. A measurement-based RED with high accuracy is proposed with observing spectrum usage status from radio environment by utilizing sensor with mobility vehicle, such as sensor-equipped vehicle and smartphone. In conventional method for RED construction, the activity of primary user is considered to be always ON when the sensor uses the spectrum sensing to calculate the received power at each place. However, a state transition may occur during the sensing period, which leads to a reliability degradation of the RED. In this paper, an active period detection method of primary signal is proposed. In this method, transition point detection is used to detect a distribution change between ON and OFF state with applying CUSUM (cumulative sum) algorithm, GLR (Generalized Likelihood Ratio) algorithm, which the cumulative sum of log probability density ratio value is calculated to detect the change between two different distribution. Then an active period is extracted by using the detected transition point. In this paper, we focus on the transition point detection performance and received power detection performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / Radio Environment Database / Transition point Detection |
| Paper # | SR2015-99 |
| Date of Issue | 2016-02-24 (SR) |
| Conference Information | |
| Committee | RCS / CCS / SR / SRW |
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| Conference Date | 2016/3/2(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 | Makoto Taromaru(Fukuoka Univ.) / Hiroo Sekiya(Chiba Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada(Kagawa National College of Tech.) / Yasuhiro Tsubo(Kyoto Sangyo Univ.) / Naoki Wakamiya(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(NTT) / Masafumi Kato(NICT) / Satoshi Denno |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(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 Complex Communication Sciences / 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) | Accuracy Improvement for Spectrum Database considering Primary Signal in Time Domain Under Fading Environment |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | Radio Environment Database |
| Keyword(3) | Transition point Detection |
| Keyword(4) | |
| 1st Author's Name | Hao Wang |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Koya Sato |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | Takeo Fujii |
| 3rd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2016-03-03 |
| Paper # | SR2015-99 |
| Volume (vol) | vol.115 |
| Number (no) | SR-473 |
| Page | pp.pp.65-70(SR), |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (SR) |