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Guided ultrasonic wave localization uses spatially distributed multistatic sensor arrays and generalized beamforming strategies to detect and locate damage across a structure. The propagation channel is often very complex. Methods can…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Ishan D. Khurjekar , Joel B. Harley

Localization in already mapped environments is a critical component in many robotics and automotive applications, where previously acquired information can be exploited along with sensor fusion to provide robust and accurate localization…

Robotics · Computer Science 2024-09-10 Lorenzo Montano-Oliván , Julio A. Placed , Luis Montano , María T. Lázaro

Accurate localization and perception are pivotal for enhancing the safety and reliability of vehicles. However, current localization methods suffer from reduced accuracy when the line-of-sight (LOS) path is obstructed, or a combination of…

Signal Processing · Electrical Eng. & Systems 2024-08-16 Yinuo Du , Hanying Zhao , Yang Liu , Xinlei Yu , Yuan Shen

In this paper, a cooperative localization algorithm is proposed that considers the existence of obstacles in mobilityassisted wireless sensor networks (WSNs). In this scheme, a mobile anchor (MA) node cooperates with static sensor nodes and…

Information Theory · Computer Science 2016-11-17 Hongyang Chen , Qingjiang Shi , Pei Huang , H. Vincent Poor , Kaoru Sezaki

We present a factor graph formulation and particle-based sum-product algorithm for robust localization and tracking in multipath-prone environments. The proposed sequential algorithm jointly estimates the mobile agent's position together…

Signal Processing · Electrical Eng. & Systems 2025-04-16 Alexander Venus , Erik Leitinger , Stefan Tertinek , Florian Meyer , Klaus Witrisal

This work estimates the position and the transmit power of multiple co-channel wireless transmitters under model uncertainties. The model uncertainties include the number of the targets and the parameters of the path-loss model which enable…

Information Theory · Computer Science 2019-03-11 Ehsan Zandi , Rudolf Mathar

5G new radio (NR) provides new opportunities for accurate positioning from a single reference station: large bandwidth combined with multiple antennas, at both the base station and user sides, allows for unparalleled angle and delay…

Signal Processing · Electrical Eng. & Systems 2019-01-08 Henk Wymeersch , Nil Garcia , Hyowon Kim , Gonzalo Seco-Granados , Sunwoo Kim , Fuxi Wen , Markus Fröhle

Range-based localization is ubiquitous: global navigation satellite systems (GNSS) power mobile phone-based navigation, and autonomous mobile robots can use range measurements from a variety of modalities including sonar, radar, and even…

Robotics · Computer Science 2024-05-21 Ethan Sequeira , Hussein Saad , Stephen Kelly , Matthew Giamou

High resolution compressive channel estimation provides information for vehicle localization when a hybrid mmWave MIMO system is considered. Complexity and memory requirements can, however, become a bottleneck when high accuracy…

Signal Processing · Electrical Eng. & Systems 2022-04-05 Yun Chen , Joan Palacios , Nuria González-Prelcic , Takayuki Shimizu , Hongsheng Lu

Localization is expected to play a significant role in future wireless networks as positioning and situational awareness, navigation and tracking, are integral parts of 6G usage scenarios. Nevertheless, in many cases localization requires…

Signal Processing · Electrical Eng. & Systems 2024-10-02 Giorgos Stratidakis , Sotiris Droulias , Angeliki Alexiou

Many applications have been identified which require the deployment of large-scale low-power wireless sensor networks. Some of the deployment environments, however, impose harsh operation conditions due to intense cross-technology…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Abiy Tasissa , Waltenegus Dargie

Predicting human behavior is a difficult and crucial task required for motion planning. It is challenging in large part due to the highly uncertain and multi-modal set of possible outcomes in real-world domains such as autonomous driving.…

Machine Learning · Computer Science 2019-10-15 Yuning Chai , Benjamin Sapp , Mayank Bansal , Dragomir Anguelov

Next generation communication systems require accurate beam alignment to counteract the impairments that characterize propagation in high-frequency bands. The overhead of the pilot sequences required to select the best beam pair is…

Signal Processing · Electrical Eng. & Systems 2024-02-27 Tien Ngoc Ha , Daniel Romero , Roberto López-Valcarce

Accurate vehicle localization is a crucial step towards building effective Vehicle-to-Vehicle networks and automotive applications. Yet standard grade GPS data, such as that provided by mobile phones, is often noisy and exhibits significant…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Eli Brosh , Matan Friedmann , Ilan Kadar , Lev Yitzhak Lavy , Elad Levi , Shmuel Rippa , Yair Lempert , Bruno Fernandez-Ruiz , Roei Herzig , Trevor Darrell

In this paper, we propose a radio-based passive target tracking algorithm using multipath measurements, including the angle of arrival and relative distance. We focus on a scenario in which a mobile receiver continuously receives radio…

Signal Processing · Electrical Eng. & Systems 2024-11-08 Ke Xu , Rui Zhang , He , Chen

This paper addresses the challenges of mobile user requirements in shadowing and multi-fading environments, focusing on the Downlink (DL) radio node selection based on Uplink (UL) channel estimation. One of the key issues tackled in this…

Networking and Internet Architecture · Computer Science 2024-12-02 Mervat Zarour , Qiuheng Zhou , Sergiy Melnyk , Hans D. Schotten

Location awareness is a key factor for a wealth of wireless indoor applications. Its provision requires the careful fusion of diverse information sources. For agents that use radio signals for localization, this information may either come…

Information Theory · Computer Science 2018-12-11 Erik Leitinger , Paul Meissner , Christoph Rüdisser , Gregor Dumphart , Klaus Witrisal

With the advances in sensors and computer networks an increased number of Mixed Reality (MR) applications require large amounts of information from the real world. Such information is collected through sensors (e.g. position and orientation…

Networking and Internet Architecture · Computer Science 2018-11-30 Felix G. Hamza-Lup , Charles Hughes , Jannick P. Rolland

Some important indoor localization applications, such as localizing a lost kid in a shopping mall, call for a new peer-to-peer localization technique that can localize an individual's smartphone or wearables by directly using another's…

Signal Processing · Electrical Eng. & Systems 2020-12-11 Xianan Zhang , Wei Wang , Xuedou Xiao , Hang Yang , Xinyu Zhang , Tao Jiang

Placing applications in mobile edge computing servers presents a complex challenge involving many servers, users, and their requests. Existing algorithms take a long time to solve high-dimensional problems with significant uncertainty…

Machine Learning · Computer Science 2024-03-26 Taha-Hossein Hejazi , Zahra Ghadimkhani , Arezoo Borji