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Fall is one of the major health threats and obstacles to independent living for elders, timely and reliable fall detection is crucial for mitigating the effects of falls. In this paper, leveraging the fine-grained Channel State Information…

Human-Computer Interaction · Computer Science 2015-07-07 Daqing Zhang , Hao Wang , Yasha Wang , Junyi Ma

A promising way to deploy Artificial Intelligence (AI)-based services on mobile devices is to run a part of the AI model (a deep neural network) on the mobile itself, and the rest in the cloud. This is sometimes referred to as collaborative…

Multimedia · Computer Science 2019-05-17 Saeed Ranjbar Alvar , Ivan V. Bajić

Collaborative inference among multiple wireless edge devices has the potential to significantly enhance Artificial Intelligence (AI) applications, particularly for sensing and computer vision. This approach typically involves a three-stage…

Cryptography and Security · Computer Science 2024-10-29 Mohamed Seif , Yuqi Nie , Andrea J. Goldsmith , H. Vincent Poor

With the increasing need for wireless data transfer, Wi-Fi networks have rapidly grown in recent years providing high throughput and easy deployment. Nowadays, Access Points (APs) can be found easily wherever we go, therefore Wi-Fi sensing…

Signal Processing · Electrical Eng. & Systems 2019-11-13 Danilo Avola , Marco Cascio , Luigi Cinque , Daniele Pannone

Identity authentication is crucial for ensuring the information security of wireless communication. Radio frequency (RF) fingerprinting techniques provide a prom-ising supplement to cryptography-based authentication approaches but rely on…

Cryptography and Security · Computer Science 2024-08-14 Junjie Wang , Yong Huang , Feiyang Zhao , Wenjing Wang , Dalong Zhang , Wei Wang

Deep learning-based channel state information (CSI) feedback schemes demonstrate strong compression capabilities but are typically constrained to fixed system configurations, limiting their generalization and flexibility. To address this…

Signal Processing · Electrical Eng. & Systems 2025-08-08 Xuanyu Liu , Shijian Gao , Boxun Liu , Xiang Cheng , Liuqing Yang

We present a data compression and dimensionality reduction scheme for data fusion and aggregation applications to prevent data congestion and reduce energy consumption at network connecting points such as cluster heads and gateways. Our…

Networking and Internet Architecture · Computer Science 2014-08-14 Mohammad Abu Alsheikh , Puay Kai Poh , Shaowei Lin , Hwee-Pink Tan , Dusit Niyato

GPS technology has revolutionized the way we localize and navigate outdoors. However, the poor reception of GPS signals in buildings makes it unsuitable for indoor localization. WiFi fingerprinting-based indoor localization is one of the…

Machine Learning · Computer Science 2021-07-05 Liping Wang , Saideep Tiku , Sudeep Pasricha

The fact that almost every person owns a smartphone device that can be precisely located is both empowering and worrying. If methods for accurate tracking of devices (and their owners) via WiFi probing are developed in a responsible way,…

Networking and Internet Architecture · Computer Science 2022-07-05 Syed Salman Alam , Muhammad Al-Qurishi , Riad Souissi

Edge-caching has received much attention as an efficient technique to reduce delivery latency and network congestion during peak-traffic times by bringing data closer to end users. Existing works usually design caching algorithms separately…

Information Theory · Computer Science 2018-02-08 Thang X. Vu , Symeon Chatzinotas , Bjorn Ottersten

WiFi-based human activity recognition (HAR) holds significant promise for ubiquitous sensing in smart environments. A critical challenge lies in enabling systems to dynamically adapt to evolving scenarios, learning new activities without…

Machine Learning · Computer Science 2025-03-12 Rong Li , Tao Deng , Siwei Feng , He Huang , Juncheng Jia , Di Yuan , Keqin Li

In this paper, we propose GesFi, a novel WiFi-based gesture recognition system that introduces WiFi latent domain mining to redefine domains directly from the data itself. GesFi first processes raw sensing data collected from WiFi receivers…

Human-Computer Interaction · Computer Science 2026-01-09 Xiang Zhang , Huan Yan , Jinyang Huang , Bin Liu , Yuanhao Feng , Jianchun Liu , Meng Li , Fusang Zhang , Zhi Liu

Emotion is well-recognized as a distinguished symbol of human beings, and it plays a crucial role in our daily lives. Existing vision-based or sensor-based solutions are either obstructive to use or rely on specialized hardware, hindering…

Human-Computer Interaction · Computer Science 2019-08-28 Yu Gu , Yantong Wang , Tao Liu , Yusheng Ji , Zhi Liu , Peng Li , Xiaoyan Wang , Xin An , Fuji Ren

The accuracy-speed-memory trade-off is always the priority to consider for several computer vision perception tasks. Previous methods mainly focus on a single or small couple of these tasks, such as creating effective data augmentation,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Xinhao Xiang , Simon Dräger , Jiawei Zhang

Wireless Sensor Networks (WSN) are the backbone of essential monitoring applications, but their deployment in unfavourable conditions increases the risk to data integrity and system reliability. Traditional fault detection methods often…

Networking and Internet Architecture · Computer Science 2026-05-06 Nguyen Tri Nghia , Nguyen Van Son , Nguyen Thi Hanh

In recent years, Channel State Information (CSI), recognized for its fine-grained spatial characteristics, has attracted increasing attention in WiFi-based indoor localization. However, despite its potential, CSI-based approaches have yet…

Human-Computer Interaction · Computer Science 2025-04-25 Tianyu Zhang , Dongheng Zhang , Ruixu Geng , Xuecheng Xie , Shuai Yang , Yan Chen

Indoor localization becomes a raising demand in our daily lives. Due to the massive deployment in the indoor environment nowadays, WiFi systems have been applied to high accurate localization recently. Although the traditional model based…

Signal Processing · Electrical Eng. & Systems 2019-02-19 Chenlu Xiang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao , Vincent LAU

Different technologies have been proposed to provide indoor localisation: magnetic field, bluetooth , WiFi, etc. Among them, WiFi is the one with the highest availability and highest accuracy. This fact allows for an ubiquitous accurate…

In a wireless sensor network Quality of Information (QoI), Energy Efficiency, Redundant data avoidance, congestion control are the important metrics that affect the performance of wireless sensor network. As many approaches were proposed to…

Networking and Internet Architecture · Computer Science 2013-05-22 Manju Prasad , Andhe Dharani

Employing large intelligent surfaces (LISs) is a promising solution for improving the coverage and rate of future wireless systems. These surfaces comprise a massive number of nearly-passive elements that interact with the incident signals,…

Information Theory · Computer Science 2019-05-01 Abdelrahman Taha , Muhammad Alrabeiah , Ahmed Alkhateeb