Presentation | 2016-10-17 Detecting Overlapped Signals for Radio Wave Interference Visualization Akihiro Wada, Tatsuya Kikuzuki, Makoto Hamaminato, Teruhisa Ninomiya, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | As IoT(Internet of things) systems are increasing, data communication may often be disturbed because of radio frequency interference among the IoT radio systems. We developed a method which can visualize interference of radio wave. The method can mitigate the interference-related problem, using the occupancy of standards. In the congested spectrogram, where signals overlap each other, conventional methods estimate the lower occupancy of standards. In this study, we propose a detection algorithm for overlapped signals which measured the time length, the bandwidth, and the center frequency of signals. In order to detect overlapped signals, the rise time and fall time of signals are searched by using the gradation of the spectrogram in the temporal domain, and the spectral features are obtained by connecting the rise and fall time in the frequency domain. In the result of experiments, we showed the precision of estimating the occupancy of standards was improved compared with the conventional method. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Radio Wave Interference Visualization / Overlapped Signals / Occupancy of Standards |
Paper # | SRW2016-48 |
Date of Issue | 2016-10-10 (SRW) |
Conference Information | |
Committee | SRW |
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Conference Date | 2016/10/17(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | Anritsu |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | Network, MAC, Sensor, mmWave, etc. |
Chair | Hiroshi Harada(Kyoto Univ.) |
Vice Chair | Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
Secretary | Masafumi Kato(NTT) / Satoshi Denno(NICT) |
Assistant | Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.) |
Paper Information | |
Registration To | 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) | Detecting Overlapped Signals for Radio Wave Interference Visualization |
Sub Title (in English) | |
Keyword(1) | Radio Wave Interference Visualization |
Keyword(2) | Overlapped Signals |
Keyword(3) | Occupancy of Standards |
Keyword(4) | |
1st Author's Name | Akihiro Wada |
1st Author's Affiliation | FUJITSU LABORATORIES LTD.(Fujitsu Labs.) |
2nd Author's Name | Tatsuya Kikuzuki |
2nd Author's Affiliation | FUJITSU LABORATORIES LTD.(Fujitsu Labs.) |
3rd Author's Name | Makoto Hamaminato |
3rd Author's Affiliation | FUJITSU LABORATORIES LTD.(Fujitsu Labs.) |
4th Author's Name | Teruhisa Ninomiya |
4th Author's Affiliation | FUJITSU LABORATORIES LTD.(Fujitsu Labs.) |
Date | 2016-10-17 |
Paper # | SRW2016-48 |
Volume (vol) | vol.116 |
Number (no) | SRW-249 |
Page | pp.pp.25-30(SRW), |
#Pages | 6 |
Date of Issue | 2016-10-10 (SRW) |