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Related papers: Wi-Fi Passive Person Re-Identification based on Ch…

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WiFi-based mobility monitoring in urban environments can provide valuable insights into pedestrian and vehicle movements. However, MAC address randomization introduces a significant obstacle in accurately estimating congestion levels and…

Signal Processing · Electrical Eng. & Systems 2025-03-05 Stepan Mazokha , Fanchen Bao , George Sklivanitis , Jason O. Hallstrom

In person re-identification (ReID), very recent researches have validated pre-training the models on unlabelled person images is much better than on ImageNet. However, these researches directly apply the existing self-supervised learning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Kuan Zhu , Haiyun Guo , Tianyi Yan , Yousong Zhu , Jinqiao Wang , Ming Tang

Wi-Fi-based positioning promises a scalable and privacy-preserving solution for location-based services in indoor environments such as malls, airports, and campuses. RSS-based methods are widely deployable as RSS data is available on all…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Abdulkadir Bilge , Erdem Ergen , Burak Soner , Sinem Coleri

We study six months of human mobility data, including WiFi and GPS traces recorded with high temporal resolution, and find that time series of WiFi scans contain a strong latent location signal. In fact, due to inherent stability and low…

Computers and Society · Computer Science 2015-08-24 Piotr Sapiezynski , Arkadiusz Stopczynski , Radu Gatej , Sune Lehmann

Reconfigurable intelligent surface (RIS) is considered a prospective technology for beyond fifth-generation (5G) networks to improve the spectral and energy efficiency at a low cost. Prior works on the RIS mainly rely on perfect channel…

Signal Processing · Electrical Eng. & Systems 2023-09-11 Sadaf Syed , Dominik Semmler , Donia Ben Amor , Michael Joham , Wolfgang Utschick

WiFi Channel State Information (CSI) has shown promise for single-person gait identification, with numerous studies reporting high accuracy. However, multi-person identification remains largely unexplored, with the limited existing work…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Oliver Custance , Saad Khan , Simon Parkinson

The reciprocity of channel state information (CSI) collected by two devices communicating over a wireless channel has been leveraged to provide security solutions to resource-limited IoT devices. Despite the extensive research that has been…

Signal Processing · Electrical Eng. & Systems 2025-04-14 Nora Basha , Bechir Hamdaoui

Person Re-identification is defined as a recognizing process where the person is observed by non-overlapping cameras at different places. In the last decade, the rise in the applications and importance of Person Re-identification for…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Sajad Amouei Sheshkal , Kazim Fouladi-Ghaleh , Hossein Aghababa

Simultaneous localization and mapping (SLAM) has been richly 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 pragmatic to…

Wi-Fi Channel State Information (CSI) has gained increasing interest for remote sensing applications. Recent studies show that Doppler velocity projections extracted from CSI can enable human activity recognition (HAR) that is robust to…

Signal Processing · Electrical Eng. & Systems 2025-07-17 Navid Hasanzadeh , Shahrokh Valaee

Wi-Fi sensing is a transformative approach that enables a large of applications through CSI analysis. The challenge lies in the high computational and communication costs with the increasing granularity of CSI data. In this letter, we…

Signal Processing · Electrical Eng. & Systems 2024-05-08 Jichen Bian

This paper presents a two-dimensional phase extraction system using passive WiFi sensing to monitor three basic elderly care activities including breathing rate, essential tremor and falls. Specifically, a WiFi signal is acquired through…

Other Computer Science · Computer Science 2017-04-04 U. M. Khan , Z. Kabir , S. A. Hassan

The proliferation of surveillance cameras has greatly improved the physical security of many security-critical properties including buildings, stores, and homes. However, recent surveillance camera looping attacks demonstrate new security…

Cryptography and Security · Computer Science 2019-04-03 Nitya Lakshmanan , Inkyu Bang , Min Suk Kang , Jun Han , Jong Taek Lee

Device-free human tracking is an essential ingredient for ubiquitous wireless sensing. Recent passive WiFi tracking systems face the challenges of inaccurate separation of dynamic human components and time-consuming estimation of…

Networking and Internet Architecture · Computer Science 2021-09-14 Zhongqin Wang , J. Andrew Zhang , Min Xu , Y. Jay Guo

Intelligent reflecting surface (IRS) has emerged as a key enabling technology to realize smart and reconfigurable radio environment for wireless communications, by digitally controlling the signal reflection via a large number of passive…

Information Theory · Computer Science 2022-02-02 Beixiong Zheng , Changsheng You , Weidong Mei , Rui Zhang

The accuracy of channel state information (CSI) is critical for improving the capacity of wireless networks. In this paper, we introduce a training protocol for wireless relay networks that uses channel estimation and feedforwarding…

Information Theory · Computer Science 2011-01-18 Cenk M. Yetis , Ahmet H. Kayran

Human pose estimation is fundamental to intelligent perception in the Internet of Things (IoT), enabling applications ranging from smart healthcare to human-computer interaction. While WiFi-based methods have gained traction, they often…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yi Dao , Lankai Zhang , Hao Liu , Haiwei Zhang , Wenbo Wang

By reconfiguring wireless channels via passive signal reflection, intelligent reflecting surface (IRS) can bring significant performance enhancement for wireless communication systems. However, such performance improvement generally relies…

Signal Processing · Electrical Eng. & Systems 2024-07-31 Ge Yan , Lipeng Zhu , Rui Zhang

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

This paper presents a new map-assisted localization approach utilizing Chanel State Information (CSI) in Massive Multiple-Input Multiple-Output (MIMO) systems. Map-assisted localization is an environment-aware approach in which the…

Signal Processing · Electrical Eng. & Systems 2023-04-25 Katarina Vuckovic , Farzam Hejazi , Nazanin Rahnavard
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