講演抄録/キーワード |
講演名 |
2016-03-04 14:30
[依頼講演]Broadband Spectrum Sensing Platform based on Received Waveform Cross-correlation using Distributed Sensors ○Doohwan Lee・Takayuki Yamada・Hiroyuki Shiba・Yo Yamaguchi・Takana Kaho・Tadao Nakagawa・Kazuhiro Uehara(NTT) SR2015-117 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range from 400MHz to 6GHz has been allocated to various wireless systems in Japan. Therefore, white space technology is expected and many studies have been reported. This talk presents our work on developing a broadband spectrum sensing platform for a white space system that covers a frequency range from 400MHz to 6GHz. In our platform, we elaborated and implemented a cooperative sensing method, which exploits cross-correlations of received signals among distributed sensors to estimate the received signal strength. By the method, spectrum sensing performance in a multipath environment is also enhanced by using a good reference signal that is located near a target system. We developed a prototype of our platform and successfully verified its performance. Our platform enables to detect signals under noise floor (e.g. -114dBm/6MHz by FCC rules), to detect transmitters, and to recognize their border of radio coverage. |
キーワード |
(和) |
/ / / / / / / |
(英) |
white space / cooperative sensing / received waveform cross-correlation / / / / / |
文献情報 |
信学技報, vol. 115, no. 473, SR2015-117, pp. 171-171, 2016年3月. |
資料番号 |
SR2015-117 |
発行日 |
2016-02-24 (SR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SR2015-117 |