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Advances in Radio-Frequency Wireless Sensors for Health and Environmental Monitoring

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biosensors".

Deadline for manuscript submissions: 28 November 2025 | Viewed by 1568

Special Issue Editor


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Guest Editor
School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
Interests: sensors; chipless; antenna; radio frequency; RFID; biosensors; smart capsules; chipless sensors; mems

Special Issue Information

Dear Colleagues,

Recent advancements in RF sensors are revolutionizing health and environmental monitoring by providing real-time non-invasive wireless solutions in data collection and analysis. In healthcare, RF wearable sensors can monitor vital signs, detect movement, and provide continuous patient care without direct contact. In internal medicine, one major breakthrough is the development of smart capsules and ingestible RF-based devices that monitor internal body conditions such as pH, temperature, and inflammation levels, offering revolutionary healthcare insights. Similarly, in environmental and agricultural applications, numerous proof-of-concept sensors have been reported to be able to detect pollutants, monitor air and water quality, and assess environmental conditions in smart cities and precision agriculture. Furthermore, the integration of machine learning into IoT has revolutionized the use of RF sensors for health and environmental monitoring, enabling real-time data-driven insights that enhance precision, efficiency, and scalability in detecting and responding to critical health and environmental issues.

This Special Issue is focused on advancements in these sensors, from their initial laboratory demonstrations to field tests and validations in real-world conditions. This Special Issue will underscore the critical importance of these sensors in achieving societal objectives such as early disease detection, enhanced patient care, effective disaster response, and environmental sustainability. By bridging the gap between technological progress and real-world impacts, we aim to inspire a wave of innovative solutions that address pressing societal needs, fostering resilient communities and a healthier planet.

With this goal in mind, we invite the submission of original research and review articles on state-of-the-art technologies, recent advancements, and unique real-life solutions for our Special Issue, “Advances in Radio-Frequency Wireless Sensors for Health and Environmental Monitoring”.

Potential topics include, but are not limited to, the following:

  • Smart capsules for internal health monitoring;
  • Wearable RF sensors for healthcare applications;
  • RF sensors for air and water quality assessment;
  • Integration of RF sensors into IoT for remote monitoring;
  • RF-based food quality monitoring;
  • RF wireless sensors for agricultural applications;
  • Machine learning-enhanced RF sensor data analysis;
  • Energy-efficient RF sensors for prolonged environmental monitoring;
  • Chipless RF sensors for electronic-free detection;
  • Future challenges and trends in RF sensor miniaturization and data security.

Dr. Sarath Gopalakrishnan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • smart capsules
  • wearable radio-frequency sensors
  • wireless radio-frequency sensors
  • RF sensor data analysis
  • health and environmental monitoring

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Published Papers (1 paper)

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63 pages, 793 KiB  
Systematic Review
Survey on Context-Aware Radio Frequency-Based Sensing
by Eugene Casmin and Rodolfo Oliveira
Sensors 2025, 25(3), 602; https://doi.org/10.3390/s25030602 - 21 Jan 2025
Viewed by 1351
Abstract
Radio frequency (RF) spectrum sensing is critical for applications requiring precise object and posture detection and classification. This survey aims to provide a focused review of context-aware RF-based sensing, emphasizing its principles, advancements, and challenges. It specifically examines state-of-the-art techniques such as phased [...] Read more.
Radio frequency (RF) spectrum sensing is critical for applications requiring precise object and posture detection and classification. This survey aims to provide a focused review of context-aware RF-based sensing, emphasizing its principles, advancements, and challenges. It specifically examines state-of-the-art techniques such as phased array radar, synthetic aperture radar, and passive RF sensing, highlighting their methodologies, data input domains, and spatial diversity strategies. The paper evaluates feature extraction methods and machine learning approaches used for detection and classification, presenting their accuracy metrics across various applications. Additionally, it investigates the integration of RF sensing with other modalities, such as inertial sensors, to enhance context awareness and improve performance. Challenges like environmental interference, scalability, and regulatory constraints are addressed, with insights into real-world mitigation strategies. The survey concludes by identifying emerging trends, practical applications, and future directions for advancing RF sensing technologies. Full article
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