Results 21 to 30 of about 15,530 (235)
Passive diagnosis for wireless sensor networks [PDF]
Proceedings of the 6th ACM conference on Embedded network sensor systems, 2008 Network diagnosis, an essential research topic for traditional networking systems, has not received much attention for wireless sensor networks. Existing sensor debugging tools like sympathy or EmStar rely heavily on an add-in protocol that generates and reports a large amount of status information from individual sen-sor nodes, introducing network ...
Kebin Liu +5 more
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Tongxin xuebao, 2022 Reconfigurable intelligent metasurface (RIS) is a new type of artificial electromagnetic metamaterial, which can control the frequency, amplitude, phase, polarization, propagation direction and wave type of electromagnetic wave flexibly.In the field of ...
Haixia LIU +7 more
doaj +2 more sources
IEEE Access, 2022 In this study, the use of intelligent reflecting surfaces (IRSs) to improve the capacity of a multi-user multiple-input-single-output downlink system is investigated.
Jung-Chieh Chen
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Wireless health monitoring using passive WiFi sensing [PDF]
2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC), 2017 6 pages, 8 figures, conference ...
Khan, U. M., Kabir, Z., Hassan, S. A.
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Passive Wireless Pressure Sensing for Gastric Manometry [PDF]
Micromachines, 2019 We describe a wireless microsystem for gastrointestinal manometry that couples a microfabricated capacitive transducer to a dual-axis inductor, forming a resonant inductor-capacitor (LC) sensor within an ingestible 3D printed biocompatible capsule measuring ø 12 mm × 24 mm. An inductively coupled external telemetry unit wirelessly monitors the pressure
Benken, Alexander, Gianchandani, Yogesh
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Wireless and passive nuclear radiation sensors [PDF]
2017 47th European Microwave Conference (EuMC), 2017 This communication reports the first experimental results obtained from new type of passive Hydrogen-Pressure Dosimeters for the remote measurement of nuclear radiation. Technological and experimental analyses are performed here to demonstrate the proof-of-concept. Radar measurements of irradiated and non-irradiated passive dosimeters are also reported
C. Arenas +6 more
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A Harsh Environment-Oriented Wireless Passive Temperature Sensor Realized by LTCC Technology
Sensors, 2014 To meet measurement needs in harsh environments, such as high temperature and rotating applications, a wireless passive Low Temperature Co-fired Ceramics (LTCC) temperature sensor based on ferroelectric dielectric material is presented in this paper.
Qiulin Tan +10 more
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Design of passive environmental safety monitoring system of underground coal mine
Gong-kuang zidonghua, 2014 The paper introduced a new design scheme of passive environmental safety monitoring system of underground coal mine based on ZigBee wireless networks and sensor detecting technique.
HU Xingzhi +3 more
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Ultrasonic Coupled Passive Wireless Oscillating Sensor System
Proceedings, 2017 This paper presents, for the first time, an instrumentation technique for passively extracting a resonance frequency of a high-Q resonator across a wireless ultrasonic channel.
Taimur Aftab +5 more
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Digital Communications and Networks, 2023 Reconfigurable intelligent surface (RIS) employs passive beamforming to control the wireless propagation channel, which benefits the wireless communication capacity and the received energy efficiency of wireless power transfer (WPT) systems.
Ziyang Lu, Yubin Zhao, Xiaofan Li
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