| 講演名 | 2020-06-29 Experimental Investigation of Energy Detection in an Outdoor Environment for Dynamic Spectrum Sharing at Millimeter Wave Bands ハンピニットサック パナウィット(東工大), 村上 厚介(東工大), 康 哲嘉(東工大), 斎藤 健太郎(東工大), 高田 潤一(東工大), |
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| 抄録(和) | |
| 抄録(英) | The spectrum sharing scheme has been proposed to combat the frequency spectrum scarcity issues. Furthermore, as the amount of data-hungry applications keeps increasing, this scheme may be utilized in the millimeter-wave bands which have been allocated for International Mobile Telecommunications (IMT). Thus, this paper presents the preliminary investigation of the energy detector in an outdoor environment at 25.19 GHz band. For the developed portable receiver (Rx) system, the 10 dBi or 20 dBi horn antenna was mounted on the stepper motor, which rotates in the horizontal direction and was controlled by the Arduino and motor driver via the PC. The antenna was connected to the handy spectrum analyzer (SA) to measure the power spectrum. The SA was also attached to the GPS module to obtain the spatial position. In the measurement, the transmitter (Tx) was the commercial low power data communication system located on the rooftop of a 14 m height building. It has the gain and half power beamwidth of 31.5 dBi and 4 degrees, respectively. The aperture of the Tx was directed horizontally and parallel to the street in front of the building. The Rx was put on a cart and positioned along the same street. Thus, it was within the line-of-sight (LOS) of the Tx. At each position, the GPS coordinates and power spectra at different azimuth angles were recorded. The test statistics of each angle were then computed from the maximum value of the spectrum over the frequency span. The results showed that almost only the LOS signal could be observed for the 10 dBi antenna. On the contrary, both LOS and backscattering components from the building opposite of the Tx were detected for the 20 dBi antenna. The LOS was the dominant mechanism when the Rx was located more than roughly 70 m from the Tx. In other positions, the backscattering paths were the major mechanism. However, in these positions, the LOS signal could be detected slightly easier in the case of the 10 dBi antenna due to the wider antenna beamwidth. This implied that if the backscattering signals were not present, the antenna with narrower beamwidth should be suitable for detection when the sensor is sufficiently far from the Tx. In other cases, the wider beamwidth antenna should be a better choice. |
| キーワード(和) | |
| キーワード(英) | Spectrum SharingMillimeter WaveEnergy Detector |
| 資料番号 | SRW2020-2 |
| 発行日 | 2020-06-22 (SRW) |
| 研究会情報 | |
| 研究会 | SRW |
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| 開催期間 | 2020/6/29(から1日開催) |
| 開催地（和） | オンライン開催 |
| 開催地（英） | Online |
| テーマ（和） | WLAN，WPAN，Ad-hoc関連技術，ミリ波通信，一般 |
| テーマ（英） | WLAN， WPAN， Ad-hoc, mmWave, etc. |
| 委員長氏名（和） | 田野 哲(岡山大) |
| 委員長氏名（英） | Satoshi Denno(Okayama Univ.) |
| 副委員長氏名（和） | 水谷 圭一(京大) / 斎藤 健太郎(東工大) / 野田 華子(アンリツ) |
| 副委員長氏名（英） | Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) |
| 幹事氏名（和） | 佐々木 重信(新潟大学) / 村上 友規(NTT) |
| 幹事氏名（英） | Shigenobu Sasaki(Niigata Univ.) / Tomoki Murakami(NTT) |
| 幹事補佐氏名（和） | 野田 聡人(南山大学) / 布施 匡章(アンリツ) |
| 幹事補佐氏名（英） | Akihito Noda(Nanzan Univ.) / Masaaki Fuse(Anritsu) |
| 講演論文情報詳細 | |
| 申込み研究会 | Technical Committee on Short Range Wireless Communications |
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| 本文の言語 | ENG |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Experimental Investigation of Energy Detection in an Outdoor Environment for Dynamic Spectrum Sharing at Millimeter Wave Bands |
| サブタイトル（和） | |
| キーワード(1)（和/英） | / Spectrum SharingMillimeter WaveEnergy Detector |
| 第 1 著者 氏名（和/英） | ハンピニットサック パナウィット / Hanpinitsak Panawit |
| 第 1 著者 所属（和/英） | 東京工業大学(略称：東工大) Tokyo Institute of Technology(略称：Tokyo Tech) |
| 第 2 著者 氏名（和/英） | 村上 厚介 / Murakami Kosuke |
| 第 2 著者 所属（和/英） | 東京工業大学(略称：東工大) Tokyo Institute of Technology(略称：Tokyo Tech) |
| 第 3 著者 氏名（和/英） | 康 哲嘉 / Kang CheChia |
| 第 3 著者 所属（和/英） | 東京工業大学(略称：東工大) Tokyo Institute of Technology(略称：Tokyo Tech) |
| 第 4 著者 氏名（和/英） | 斎藤 健太郎 / Saito Kentaro |
| 第 4 著者 所属（和/英） | 東京工業大学(略称：東工大) Tokyo Institute of Technology(略称：Tokyo Tech) |
| 第 5 著者 氏名（和/英） | 高田 潤一 / Takada Jun-ichi |
| 第 5 著者 所属（和/英） | 東京工業大学(略称：東工大) Tokyo Institute of Technology(略称：Tokyo Tech) |
| 発表年月日 | 2020-06-29 |
| 資料番号 | SRW2020-2 |
| 巻番号（vol） | vol.120 |
| 号番号（no） | SRW-81 |
| ページ範囲 | pp.3-3(SRW), |
| ページ数 | 1 |
| 発行日 | 2020-06-22 (SRW) |