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The widespread availability of cellular devices introduces new threat vectors that allow users or attackers to bypass security policies and physical barriers and bring unauthorized devices into sensitive areas. We identify a critical gap in…

密码学与安全 · 计算机科学 2026-02-18 Martin Kotuliak , Simon Erni , Jakub Polák , Marc Roeschlin , Richard Baker , Ivan Martinovic , Srdjan Čapkun

Traceability to the International System of Units (SI) is fundamental to measurement accuracy and reliability. In this study, we demonstrate subnanometer traceability of localization microscopy, establishing a metrological foundation for…

In recent years, UWB has garnered widespread attention in academia and industry due to its low power consumption, wide bandwidth, and high time resolution characteristics. This paper introduces the design of an asynchronous IR-UWB…

信号处理 · 电气工程与系统科学 2025-03-04 Fan Liu , Bofeng Zheng , Tingting Zhang , Qinyu Zhang

Backscatter radio is a promising technology for low-cost and low-power Internet-of-Things (IoT) networks. The conventional monostatic backscatter radio is constrained by its limited communication range, which restricts its utility in…

系统与控制 · 电气工程与系统科学 2025-09-17 Kartik Patel , Junbo Zhang , John Kimionis , Lefteris Kampianakis , Michael S. Eggleston , Jinfeng Du

Battery-free Internet of Things (BF-IoT) enabled by backscatter communication is a rapidly evolving technology offering advantages of low cost, ultra-low power consumption, and robustness. However, the practical deployment of BF-IoT is…

信号处理 · 电气工程与系统科学 2026-01-14 Taorui Liu , Xu Liu , Zhiquan Xu , Houfeng Chen , Hongliang Zhang , Lingyang Song

Wireless Sensor Networks (WSNs) are composed of nodes that gather metrics like temperature, pollution or pressure from events generated by external entities. Localization in WSNs is paramount, given that the collected metrics must be…

网络与互联网体系结构 · 计算机科学 2013-06-11 Luis Sanabria-Russo , Cristina Cano , Boris Bellalta

While UWB-based methods can achieve high localization accuracy in small-scale areas, their accuracy and reliability are significantly challenged in large-scale environments. In this paper, we propose a learning-based framework named ULOC…

机器人学 · 计算机科学 2024-09-18 Thien-Minh Nguyen , Yizhuo Yang , Tien-Dat Nguyen , Shenghai Yuan , Lihua Xie

With the ongoing development of Indoor Location-Based Services, the location information of users in indoor environments has been a challenging issue in recent years. Due to the widespread use of WiFi networks, WiFi fingerprinting has…

分布式、并行与集群计算 · 计算机科学 2024-06-05 Amin Kargar-Barzi , Ebrahim Farahmand , Nooshin Taheri Chatrudi , Ali Mahani , Muhammad Shafique

We consider the problem of localizing wireless devices in an ad-hoc network embedded in a d-dimensional Euclidean space. Obtaining a good estimation of where wireless devices are located is crucial in wireless network applications including…

网络与互联网体系结构 · 计算机科学 2011-10-14 Amin Karbasi , Sewoong Oh

Current and future wireless applications strongly rely on precise real-time localization. A number of applications such as smart cities, Internet of Things (IoT), medical services, automotive industry, underwater exploration, public safety,…

信号处理 · 电气工程与系统科学 2019-06-11 Nasir Saeed , Haewoon Nam , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

A network is called localizable if the positions of all the nodes of the network can be computed uniquely. If a network is localizable and embedded in plane with generic configuration, the positions of the nodes may be computed uniquely in…

分布式、并行与集群计算 · 计算机科学 2013-08-30 Buddhadeb Sau , Krishnendu Mukhopadhyaya

The localization problem in a wireless sensor network is to determine the coordination of sensor nodes using the known positions of some nodes (called anchors) and corresponding noisy distance measurements. There is a variety of different…

最优化与控制 · 数学 2014-09-19 Pouya Mollaebrahim Ghari , Reza Shahbazian , Seyed Ali Ghorashi

We consider the mobile localization problem in future millimeter-wave wireless networks with distributed Base Stations (BSs) based on multi-antenna channel state information (CSI). For this problem, we propose a Semi-supervised tdistributed…

机器学习 · 计算机科学 2021-11-29 Junquan Deng , Wei Shi , Jian Hu , Xianlong Jiao

Localization of objects is vital for robot-object interaction. Light Detection and Ranging (LiDAR) application in robotics is an emerging and widely used object localization technique due to its accurate distance measurement, long-range,…

Wireless sensors in extreme environments such as underground, concrete wall, and the human body, can enable a large number of important applications. However, deploying wireless sensors in such environments on a large scale is a great…

信号处理 · 电气工程与系统科学 2019-07-24 Hongzhi Guo , Zhi Sun

Cross-view image geolocalization provides an estimate of an agent's global position by matching a local ground image to an overhead satellite image without the need for GPS. It is challenging to reliably match a ground image to the correct…

计算机视觉与模式识别 · 计算机科学 2022-07-07 Lena M. Downes , Dong-Ki Kim , Ted J. Steiner , Jonathan P. How

Green low power networking with the least requirement of dedicated radio resources is need of the hour which has led to the upsurge of backscatter communication (BSC) technology. However, this inherent potential of BSC is challenged by…

信息论 · 计算机科学 2019-08-26 Deepak Mishra , Erik G. Larsson

An unknown-position sensor can be localized if there are three or more anchors making time-of-arrival (TOA) measurements of a signal from it. However, the location errors can be very large due to the fact that some of the measurements are…

信息论 · 计算机科学 2016-11-17 Hongyang Chen , Kenneth W. K. Lui , Zizhuo Wang , H. C. So , H. Vincent Poor

The vision of embedding connectivity into billions of everyday objects runs into the reality of existing communication technologies --- there is no existing wireless technology that can provide reliable and long-range communication at tens…

网络与互联网体系结构 · 计算机科学 2017-05-18 Vamsi Talla , Mehrdad Hessar , Bryce Kellogg , Ali Najafi , Joshua R. Smith , Shyamnath Gollakota

In wireless networks, the presence of interference among wireless links in- troduces dependencies among flows that do not share a single link or node. As a result, when designing a resource allocation scheme, be it a medium access scheduler…

网络与互联网体系结构 · 计算机科学 2012-08-10 Horia Vlad Balan , Konstantinos Psounis