PADS: Passive detection of moving targets with dynamic speed using PHY layer information
Device-free passive detection is an emerging technology to detect whether there exists any moving entities in the area of interests without attaching any device to them. It is an essential primitive for a broad range of applications including intrusion detection for safety precautions, patient monit...
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sg-smu-ink.sis_research-57582020-01-16T10:31:15Z PADS: Passive detection of moving targets with dynamic speed using PHY layer information QIAN, Kun WU, Chenshu YANG, Zheng LIU, Yunhao ZHOU, Zimu Device-free passive detection is an emerging technology to detect whether there exists any moving entities in the area of interests without attaching any device to them. It is an essential primitive for a broad range of applications including intrusion detection for safety precautions, patient monitoring in hospitals, child and elder care at home, etc. Despite of the prevalent signal feature Received Signal Strength (RSS), most robust and reliable solutions resort to finer-grained channel descriptor at physical layer, e.g., the Channel State Information (CSI) in the 802.11n standard. Among a large body of emerging techniques, however, few of them have explored full potentials of CSI for human detection. Moreover, space diversity supported by nowadays popular multi-antenna systems are not investigated to the comparable extent as frequency diversity. In this paper, we propose a novel scheme for device-free PAssive Detection of moving humans with dynamic Speed (PADS). Both amplitude and phase information of CSI are extracted and shaped into sensitive metrics for target detection; and CSI across multi-antennas in MIMO systems are further exploited to improve the detection accuracy and robustness. We prototype PADS on commercial WiFi devices and experiment results in different scenarios demonstrate that PADS achieves great performance improvement in spite of dynamic human movements. 2014-12-01T08:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/4755 info:doi/10.1109/PADSW.2014.7097784 https://ink.library.smu.edu.sg/context/sis_research/article/5758/viewcontent/Qian_2014_Pads_passive_detection_of_moving_ta.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Software Engineering |
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Software Engineering QIAN, Kun WU, Chenshu YANG, Zheng LIU, Yunhao ZHOU, Zimu PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
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Device-free passive detection is an emerging technology to detect whether there exists any moving entities in the area of interests without attaching any device to them. It is an essential primitive for a broad range of applications including intrusion detection for safety precautions, patient monitoring in hospitals, child and elder care at home, etc. Despite of the prevalent signal feature Received Signal Strength (RSS), most robust and reliable solutions resort to finer-grained channel descriptor at physical layer, e.g., the Channel State Information (CSI) in the 802.11n standard. Among a large body of emerging techniques, however, few of them have explored full potentials of CSI for human detection. Moreover, space diversity supported by nowadays popular multi-antenna systems are not investigated to the comparable extent as frequency diversity. In this paper, we propose a novel scheme for device-free PAssive Detection of moving humans with dynamic Speed (PADS). Both amplitude and phase information of CSI are extracted and shaped into sensitive metrics for target detection; and CSI across multi-antennas in MIMO systems are further exploited to improve the detection accuracy and robustness. We prototype PADS on commercial WiFi devices and experiment results in different scenarios demonstrate that PADS achieves great performance improvement in spite of dynamic human movements. |
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QIAN, Kun WU, Chenshu YANG, Zheng LIU, Yunhao ZHOU, Zimu |
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QIAN, Kun WU, Chenshu YANG, Zheng LIU, Yunhao ZHOU, Zimu |
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QIAN, Kun |
title |
PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
title_short |
PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
title_full |
PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
title_fullStr |
PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
title_full_unstemmed |
PADS: Passive detection of moving targets with dynamic speed using PHY layer information |
title_sort |
pads: passive detection of moving targets with dynamic speed using phy layer information |
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Institutional Knowledge at Singapore Management University |
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2014 |
url |
https://ink.library.smu.edu.sg/sis_research/4755 https://ink.library.smu.edu.sg/context/sis_research/article/5758/viewcontent/Qian_2014_Pads_passive_detection_of_moving_ta.pdf |
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