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Doppler shift is an important measurement for localization and synchronization (LAS), and is available in various practical systems. Existing studies on LAS techniques in a time division broadcast LAS system (TDBS) only use sequential…

Signal Processing · Electrical Eng. & Systems 2022-02-15 Sihao Zhao , Ningyan Guo , Xiao-Ping Zhang , Xiaowei Cui , Mingquan Lu

We address the problem of tensor decomposition in application to direction-of-arrival (DOA) estimation for transmit beamspace (TB) multiple-input multiple-output (MIMO) radar. A general 4-order tensor model that enables computationally…

Information Theory · Computer Science 2022-06-29 Feng Xu , Matthew W. Morency , Sergiy A. Vorobyov

In this paper, we propose a Modified distributed storage algorithm for wireless sensor networks (MDSA). Wireless Sensor Networks, as it is well known, suffer of power limitation, small memory capacity,and limited processing capabilities.…

Networking and Internet Architecture · Computer Science 2012-11-13 Mohamed Labib Borham , Mostafa Sami Mostafa , Hossam Eldeen Moustafa Shamardan

With the rapid development of the Internet of Things (IoT), Indoor Positioning System (IPS) has attracted significant interest in academic research. Ultra-Wideband (UWB) is an emerging technology that can be employed for IPS as it offers…

Signal Processing · Electrical Eng. & Systems 2021-08-24 Fuhu Che , Qasim Zeeshan Ahmed , Faheem A. Khan , Pavlos I. Lazaridis

When, in addition to stability, position synchronization is also desired in bilateral teleoperation, Time Domain Passivity Approach (TDPA) alone might not be able to fulfill the desired objective. This is due to an undesired effect caused…

Robotics · Computer Science 2020-02-12 Andre Coelho , Christian Ott , Harsimran Singh , Fernando Lizarralde , Konstantin Kondak

Transformer-based architectures have become the dominant paradigm for Continuous-Time Dynamic Graph (CTDG) learning, yet their performance remains limited on temporally shifted datasets. In this work, we identify attention dispersion as a…

Machine Learning · Computer Science 2026-05-18 Jinhao Zhang , Kangfei Zhao , Qiuhao Zeng , Long-Kai Huang

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

Robotics · Computer Science 2022-01-14 Ehsan Latif , Ramviyas Parasuraman

Future Internet of Things (IoT) applications will require that billions of wireless devices transmit data to the cloud frequently. However, the wireless medium access is pointed as a problem for the next generations of wireless networks;…

Networking and Internet Architecture · Computer Science 2017-09-01 Gabriel Martins Dias , Boris Bellalta , Simon Oechsner

Determining assets position with high accuracy and scalability is one of the most investigated technology on the market. The accuracy provided by satellites-based positioning systems (i.e., GLONASS or Galileo) is not always sufficient when…

Signal Processing · Electrical Eng. & Systems 2022-02-16 Luca Santoro , Matteo Nardello , Davide Brunelli , Daniele Fontanelli

Many applications require positioning. Time of Flight (ToF) methods calculate distances by measuring the propagation time of signals. We present a novel ToF localization method. Our new approach works infrastructure-less, without…

Networking and Internet Architecture · Computer Science 2020-01-14 Maximilian von Tschirschnitz , Marcel Wagner , Marc-Oliver Pahl , Georg Carle

Session-based recommendation is a practical recommendation task that predicts the next item based on an anonymous behavior sequence, and its performance relies heavily on the transition information between items in the sequence. The SOTA…

Information Retrieval · Computer Science 2022-04-06 Ansong Li

Drone base station (DBS) is a promising technique to extend wireless connections for uncovered users of terrestrial radio access networks (RAN). To improve user fairness and network performance, in this paper, we design 3D trajectories of…

Networking and Internet Architecture · Computer Science 2019-10-24 Weisen Shi , Junlng Li , Nan Cheng , Feng Lyu , Shan Zhang , Haibo Zhou , Xuemin Shen

Turn-By-Turn (TBT) betatron oscillation data is a very powerful tool in studying machine optics. Hundreds and thousands of turns of free oscillations are taken in just few tens of milliseconds. With beam covering all positions and angles at…

Accelerator Physics · Physics 2012-08-14 M. J. Yang

Global Navigation Satellite Systems (GNSS) are vital for reliable urban positioning. However, multipath and non-line-of-sight reception often introduce large measurement errors that degrade accuracy. Learning-based methods for predicting…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jiaqi Zhu , Shouyi Lu , Ziyao Li , Guirong Zhuo , Lu Xiong

Currently, most of existing research in direction of arrival (DOA) estimation is focused on single signal transmission (SST) based signal. However, to make full use of the degree of freedom provided by the system in the polarisation domain,…

Signal Processing · Electrical Eng. & Systems 2019-12-24 Xiang Lan , Wei Liu

Nowadays, Unmanned Aerial Vehicles (UAVs) have been significantly improved, and one of their most important applications is to provide temporary coverage for cellular users. Static Base Station cannot service all users due to temporary…

Networking and Internet Architecture · Computer Science 2022-02-09 Mehdi Sookhak , Amir Hossein Mohajerzadeh

Deep neural networks (DNNs) have greatly benefited direction of arrival (DoA) estimation methods for speech source localization in noisy environments. However, their localization accuracy is still far from satisfactory due to the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-21 Kuan-Lin Chen , Ching-Hua Lee , Bhaskar D. Rao , Harinath Garudadri

The current paper addresses relevant network security vulnerabilities introduced by network devices within the emerging paradigm of Internet of Things (IoT) as well as the urgent need to mitigate the negative effects of some types of…

Cryptography and Security · Computer Science 2021-04-16 Pedro Manso , Jose Moura , Carlos Serrao

As highlighted in the National Spectrum Strategy, Dynamic Spectrum Access (DSA) is key for enabling 6G networks to meet the increasing demand for spectrum from various, heterogeneous emerging applications. In this paper, we consider…

Networking and Internet Architecture · Computer Science 2025-01-31 Ankit Walishetti , Igor Kadota , Aidan Kim , Colin Ward , Eduardo Gutierrez , Randall Berry

Differential distributed space-time coding (D-DSTC) is a cooperative transmission technique that can improve diversity in wireless relay networks in the absence of channel information. Conventionally, it is assumed that channels are…

Information Theory · Computer Science 2014-11-18 M. R. Avendi , Hamid Jafarkhani