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Wi-Fi sensing has emerged as a versatile tool for tasks such as localization, gesture recognition, and vital-sign monitoring, enabling applications from smart environments to personalized healthcare. However, sensing accuracy often…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Fabian Portner , Francesco Gringoli , Matthias Hollick , Arash Asadi

Localization services for wireless devices play an increasingly important role in our daily lives and a plethora of emerging services and applications already rely on precise position information. Widely used on-device positioning methods,…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Pengzhi Huang , Emre Gönültaş , Maximilian Arnold , K. Pavan Srinath , Jakob Hoydis , Christoph Studer

Taking advantage of the rich information provided by Wi-Fi measurement setups, Wi-Fi-based human behavior sensing leveraging Channel State Information (CSI) measurements has received a lot of research attention in recent years. The…

Human-Computer Interaction · Computer Science 2021-08-03 Lingchao Guo , Zhaoming Lu , Xiangming Wen , Liming Wang , David Gesbert , Zijun Han

A Wireless Sensor Network (WSN) consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure,etc. In sensing applications, data packets are flowing from sensor…

Networking and Internet Architecture · Computer Science 2014-02-07 Ms. Aruna. G. R , Mr. SivanArulSelvan

Indoor humidity is a crucial factor affecting people's health and well-being. Wireless humidity sensing techniques are scalable and low-cost, making them a promising solution for measuring humidity in indoor environments without requiring…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Yirui Deng , Deepak Mishra , Shaghik Atakaramians , Aruna Seneviratne

RF fingerprinting is emerging as a physical layer security scheme to identify illegitimate and/or unauthorized emitters sharing the RF spectrum. However, due to the lack of publicly accessible real-world datasets, most research focuses on…

Networking and Internet Architecture · Computer Science 2023-08-21 Anu Jagannath , Zackary Kane , Jithin Jagannath

Recently, there has been a significant interest in developing cooperative sensing systems for certain types of wireless applications. In such systems, a group of sensing nodes periodically collect measurements about the signals being…

Information Theory · Computer Science 2015-06-11 Harish Ganapathy , Constantine Caramanis , Lei Ying

This paper presents an end-to-end deep learning framework using passive WiFi sensing to classify and estimate human respiration activity. A passive radar test-bed is used with two channels where the first channel provides the reference WiFi…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 U. M. Khan , Z. Kabir , S. A. Hassan , S. H. Ahmed

We propose a joint learning framework for Byzantine-resilient spectrum sensing and secure intelligent reflecting surface (IRS)--assisted opportunistic access under channel state information (CSI) uncertainty. The sensing stage performs…

Signal Processing · Electrical Eng. & Systems 2025-08-12 Amirhossein Taherpour , Abbas Taherpour , Tamer Khattab

In this paper, we explore the use of channel state information (CSI) from a WiFi system to estimate the breathing rate of a person in a room. In order to extract WiFi CSI components that are sensitive to breathing, we propose to consider…

Signal Processing · Electrical Eng. & Systems 2025-02-19 Sitian Li , Andreas Toftegaard Kristensen , Andreas Burg , Alexios Balatsoukas-Stimming

With the continuous increase of the spectrum and antennas, endogenous sensing is now possible in the fifth generation and future wireless communication systems. However, sensing is a highly complex task for a heterogeneous communication…

Information Theory · Computer Science 2021-05-10 Jie Yang , Xi Yang , Chao-Kai Wen , Shi Jin

Integrated sensing and communication (ISAC) is a promising technique for expanding the functionalities of wireless networks with enhanced spectral efficiency. The 3rd Generation Partnership Project (3GPP) has defined six basic sensing…

Signal Processing · Electrical Eng. & Systems 2025-09-17 Yixin Ding , Haoyu Jiang , Xiaoli Xu , Yanan Liang , Yong Zeng

It has been shown that the channel state information (CSI) of a Wi-Fi system can be exploited to localize Wi-Fi devices or track trajectory of a moving target. In the existing literature, both sensing tasks are treated separately and some…

Signal Processing · Electrical Eng. & Systems 2026-03-19 Chunxi Chen , Jingwen Zhang , Chao Yu , Fan Liu , Rui Wang

Wireless sensing has made significant progress in tasks ranging from action recognition, vital sign estimation, pose estimation, etc. After over a decade of work, wireless sensing currently stands at the tipping point transitioning from…

Machine Learning · Computer Science 2024-12-09 Qunhang Fu , Fei Wang , Mengdie Zhu , Han Ding , Jinsong Han , Tony Xiao Han

WiFi-based sensing for human activity recognition (HAR) has recently become a hot topic as it brings great benefits when compared with video-based HAR, such as eliminating the demands of line-of-sight (LOS) and preserving privacy. Making…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Yanling Hao , Zhiyuan Shi , Yuanwei Liu

Active sensing refers to the process of choosing or tuning a set of sensors in order to track an underlying system in an efficient and accurate way. In a wireless environment, among the several kinds of features extracted by traditional…

Information Theory · Computer Science 2016-05-30 Alessandro Biason , Urbashi Mitra , Michele Zorzi

WiFi-based human activity recognition (HAR) holds significant application potential across various fields. To handle dynamic environments where new activities are continuously introduced, WiFi-based HAR systems must adapt by learning new…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Rong Li , Tao Deng , Siwei Feng , Mingjie Sun , Juncheng Jia

The joint communications and sensing (JCAS) paradigm is envisioned as a core capability of sixth-generation (6G) wireless networks, enabling the integration of data communication and environmental sensing within a unified system. By reusing…

Signal Processing · Electrical Eng. & Systems 2026-02-11 Wali Ullah Khan , Chandan Kumar Sheemar , Syed Tariq Shah , Manzoor Ahmed , Symeon Chatzinotas

The cognitive radio wireless sensor networks have become an integral part of communicating spectrum information to the fusion center, in a cooperative spectrum sensing environment. A group of battery operated sensors or nodes, sensing…

Information Theory · Computer Science 2017-11-28 Atchutananda Surampudi , Krishnamoorthy Kalimuthu

The systems based on intelligent sensors are currently expanding, due to theirs functions and theirs performances of intelligence: transmitting and receiving data in real-time, computation and processing algorithms, metrology remote,…

Networking and Internet Architecture · Computer Science 2014-09-25 Saad Chakkor , El Ahmadi Cheikh , Mostafa Baghouri , Abderrahmane Hajraoui