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Recent years have witnessed the bloom development of the human-centered wireless sensing applications, in which some human information, such as the user's identity and motions, can be retrieved through analyzing the signal distortion caused…

Cryptography and Security · Computer Science 2020-04-13 Jianwei Liu , Jinsong Han , Lei Yang , Fei Wang , Feng Lin , Kui Ren

Recently, commercial ultra-wideband (UWB) transceivers have enabled not only measuring device-to-device distance but also tracking the position of a pedestrian who does not carry a UWB device. UWB-based device-free localization that does…

Signal Processing · Electrical Eng. & Systems 2025-07-21 Hyun Seok Lee

The use of Bluetooth Low Energy in low-range Internet of Things systems is growing exponentially. Similar to other wireless communication protocols, throughput and reliability are two key performance metrics in Bluetooth Low Energy…

Networking and Internet Architecture · Computer Science 2024-05-03 Bozheng Pang , Tim Claeys , Hans Hallez , Jeroen Boydens

This work describes an integrated solution to face a civil security problem in the area of Search And Rescue (SAR) of missing people. This proposal is based on the use of emerging technologies such as Unmanned Aerial Vehicles (UAV), also…

Cryptography and Security · Computer Science 2022-08-17 Moisés Lodeiro-Santiago , Ivan Santos-Gonzalez , Pino Caballero-Gil , Candido Caballero-Gil

To fight against infectious diseases (e.g., SARS, COVID-19, Ebola, etc.), government agencies, technology companies and health institutes have launched various contact tracing approaches to identify and notify the people exposed to…

Cryptography and Security · Computer Science 2022-10-06 Teng Li , Siwei Yin , Runze Yu , Yebo Feng , Lei Jiao , Yulong Shen , Jianfeng Ma

Bluetooth Low Energy (BLE) backscatter is a promising candidate for battery-free Internet of Things (IoT) applications. Unlike existing commodity-level BLE backscatter systems that only enable one-shot communication through BLE advertising…

Networking and Internet Architecture · Computer Science 2025-03-17 Huixin Dong , Yijie Wu , Feiyu Li , Wei Kuang , Yuan He , Qian Zhang , Wei Wang

Internet-of-Things (IoT) devices are nowadays massively integrated in daily life: homes, factories, or public places. This technology offers attractive services to improve the quality of life as well as new economic markets through the…

Cryptography and Security · Computer Science 2018-11-12 Jonathan Roux , Eric Alata , Guillaume Auriol , Mohamed Kaâniche , Vincent Nicomette , Romain Cayre

Camera-equipped mobile devices, such as phones, smart glasses, and AR headsets, pose a privacy challenge for bystanders, who currently lack effective real-time mechanisms to control the capture of their picture, video, including their face.…

Cryptography and Security · Computer Science 2025-12-18 Jad Al Aaraj , Athina Markopoulou

Human motion detection is getting considerable attention in the field of Artificial Intelligence (AI) driven healthcare systems. Human motion can be used to provide remote healthcare solutions for vulnerable people by identifying particular…

Signal Processing · Electrical Eng. & Systems 2020-08-07 William Taylor , Syed Aziz Shah , Kia Dashtipour , Adnan Zahid , Qammer H. Abbasi , Muhammad Ali Imran

The lack of standard input interfaces in the Internet of Things (IoT) ecosystems presents a challenge in securing such infrastructures. To tackle this challenge, we introduce a novel behavioral biometric system based on naturally occurring…

Cryptography and Security · Computer Science 2022-02-22 Klaudia Krawiecka , Simon Birnbach , Simon Eberz , Ivan Martinovic

In this paper we focus on the problem of human activity recognition without identification of the individuals in a scene. We consider using Wi-Fi signals to detect certain human mobility behaviors such as stationary, walking, or running.…

Networking and Internet Architecture · Computer Science 2018-08-06 Fang-Jing Wu , Gürkan Solmaz

The plummeting cost of Bluetooth tags and the ubiquity of mobile devices are revolutionizing the traditional lost-and-found service. This paper presents SecureFind, a secure and privacy-preserving object-finding system via mobile…

Cryptography and Security · Computer Science 2015-03-30 Jingchao Sun , Rui Zhang , Xiaocong Jin , Yanchao Zhang

Simultaneous localization and mapping (SLAM) has been extensively researched in past years particularly with regard to range-based or visual-based sensors. Instead of deploying dedicated devices that use visual features, it is more…

Networking and Internet Architecture · Computer Science 2020-01-10 Ran Liu , Sumudu Hasala Marakkalage , Madhushanka Padmal , Thiruketheeswaran Shaganan , Chau Yuen , Yong Liang Guan , U-Xuan Tan

Bluetooth Low Energy (BLE) is an emerging wireless technology created for short-range control and monitoring applications that is becoming increasingly widespread among the Internet of Things (IoT) services because of its low-cost and…

Networking and Internet Architecture · Computer Science 2022-08-09 Davide Villa , Chih-Kuang Lin , Adam Kuenzi , Michael Lang

The rapid deployment of wireless technologies has given rise to the current situation where mobile phones and other wireless devices have become essential elements in all types of activities, including in the home. In particular,…

Cryptography and Security · Computer Science 2022-08-09 V Mora-Afonso , Pino Caballero-Gil , Jezabel Molina-Gil

Bluetooth Low Energy (BLE) is widely used in modern IoT systems because it consumes very little power, saves energy, and allows for simple device connectivity; however, maintaining security and communication reliability remains a challenge.…

Cryptography and Security · Computer Science 2026-05-05 Nitesh Yadav , Vashisht Kumar , Sachin Kadam

During pandemics, health officials usually recommend access monitoring and regulation protocols/systems in places that are major activity centres. As organizations adhere to those recommendations, they often fail to implement proper privacy…

Cryptography and Security · Computer Science 2020-12-22 Md. Monowar Anjum , Noman Mohammed

Contact tracing has emerged as one of the main mitigation strategies to prevent the spread of pandemics such as COVID-19. Recently, several efforts have been initiated to track individuals, their movements, and interactions using…

Wireless localization for mobile device has attracted more and more interests by increasing the demand for location based services. Fingerprint-based localization is promising, especially in non-Line-of-Sight (NLoS) or rich scattering…

Signal Processing · Electrical Eng. & Systems 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao

With the development of the Internet of Things technology, indoor tracking has become a popular application nowadays, but most existing solutions can only work in line-of-sight scenarios, or require regular re-calibration. In this paper, we…

Signal Processing · Electrical Eng. & Systems 2018-07-10 Feng Zhang , Chen Chen , Beibei Wang , Yi Han , K. J. Ray Liu