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This paper introduces a novel and distributed method for detecting inter-map loop closure outliers in simultaneous localization and mapping (SLAM). The proposed algorithm does not rely on a good initialization and can handle more than two…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Arman Karimian , Ziqi Yang , Roberto Tron

The ability of a sensor node to determine its location in a sensor network is important in many applications. The infrastructure for the location-based services is an easy target for malicious attacks. We address scenarios where malicious…

Cryptography and Security · Computer Science 2019-12-16 Bodhibrata Mukhopadhyay , Seshan Srirangarajan , Subrat Kar

Localization is important for a large number of Internet of Things (IoT) endpoint devices connected by LoRaWAN. Due to the bandwidth limitations of LoRaWAN, existing localization methods without specialized hardware (e.g., GPS) produce poor…

Signal Processing · Electrical Eng. & Systems 2021-08-17 Jun Liu , Jiayao Gao , Sanjay Jha , Wen Hu

In this paper, we propose a novel wireless scheme that integrates satellite, airborne, and terrestrial networks aiming to support ground users. More specifically, we study the enhancement of the achievable users' throughput assisted with…

Networking and Internet Architecture · Computer Science 2019-12-10 Ahmad Alsharoa , Mohamed-Slim Alouini

Evolving Internet-of-Things (IoT) applications often require the use of sensor-based indoor tracking and positioning, for which the performance is significantly improved by identifying the type of the surrounding indoor environment. This…

Signal Processing · Electrical Eng. & Systems 2020-01-08 Mohamed I. AlHajri , Nazar T. Ali , Raed M. Shubair

With the unprecedented demand for location-based services in indoor scenarios, wireless indoor localization has become essential for mobile users. While GPS is not available at indoor spaces, WiFi RSS fingerprinting has become popular with…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Qianwen Ye , Xiaochen Fan , Gengfa Fang , Hongxia Bie , Chaocan Xiang , Xudong Song , Xiangjian He

Signal classification problems arise in a wide variety of applications, and their demand is only expected to grow. In this paper, we focus on the wireless sensor network signal classification setting, where each sensor forwards quantized…

Signal Processing · Electrical Eng. & Systems 2022-06-29 Jing Guo , Raghu G. Raj , David J. Love , Christopher G. Brinton

Recognizing user location with WiFi fingerprints is a popular approach for accurate indoor positioning problems. In this work, our goal is to interpret WiFi fingerprints into actual user locations. However, WiFi fingerprint data can be very…

Machine Learning · Computer Science 2021-01-27 Weizhu Qian , Franck Gechter

Mobile wireless sensors are increasingly recognized as a valuable tool for monitoring critical infrastructures. An important use case is the discovery of leaks and inflows in pipe networks using a swarm of floating sensor nodes. While…

Multiagent Systems · Computer Science 2021-09-02 Martin Haug , Felix Lorenz , Lauritz Thamsen

With the rapid development of indoor location-based services (LBSs), the demand for accurate localization keeps growing as well. To meet this demand, we propose an indoor localization algorithm based on graph convolutional network (GCN). We…

Signal Processing · Electrical Eng. & Systems 2021-04-22 Yanzan Sun , Qinggang Xie , Guangjin Pan , Shunqing Zhang , Shugong Xu

In this paper, we consider the problem of collaboratively estimating the sparsity pattern of a sparse signal with multiple measurement data in distributed networks. We assume that each node makes Compressive Sensing (CS) based measurements…

Information Theory · Computer Science 2012-11-29 Thakshila Wimalajeewa , Pramod K. Varshney

Matching Pursuit LASSIn Part I \cite{TanPMLPart1}, a Matching Pursuit LASSO ({MPL}) algorithm has been presented for solving large-scale sparse recovery (SR) problems. In this paper, we present a subspace search to further improve the…

Computer Vision and Pattern Recognition · Computer Science 2014-12-25 Mingkui Tan , Ivor W. Tsang , Li Wang

It is well known that $\ell_1$ minimization can be used to recover sufficiently sparse unknown signals from compressed linear measurements. In fact, exact thresholds on the sparsity, as a function of the ratio between the system dimensions,…

Information Theory · Computer Science 2011-11-08 M. Amin Khajehnejad , Weiyu Xu , A. Salman Avestimehr , Babak Hassibi

Recently, there has been significant interest in the integration and co-existence of Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) with other Radio Access Technologies, like IEEE 802.11 Wireless Local Area Networks…

Networking and Internet Architecture · Computer Science 2017-11-01 Pravjyot Singh Deogun , Arghyadip Roy , Abhay Karandikar

This paper considers a joint scattering environment sensing and data recovery problem in an uplink integrated sensing and communication (ISAC) system. To facilitate joint scatterers localization and multi-user (MU) channel estimation, we…

Signal Processing · Electrical Eng. & Systems 2025-02-11 An Liu , Wenkang Xu , Wei Xu , Giuseppe Caire

Wireless indoor localization has been a pivotal area of research over the last two decades, becoming a cornerstone for numerous sensing applications. However, conventional wireless localization methods rely on channel state information to…

Signal Processing · Electrical Eng. & Systems 2025-01-31 Xueqiang Han , Tianyue Zheng , Tony Xiao Han , Jun Luo

Sparse regression has been a popular approach to perform variable selection and enhance the prediction accuracy and interpretability of the resulting statistical model. Existing approaches focus on offline regularized regression, while the…

Machine Learning · Statistics 2023-01-03 Shuoguang Yang , Yuhao Yan , Xiuneng Zhu , Qiang Sun

We propose an approach to reduce both computational complexity and data storage requirements for the online positioning stage of a fingerprinting-based indoor positioning system (FIPS) by introducing segmentation of the region of interest…

Machine Learning · Statistics 2017-11-22 Caifa Zhou , Andreas Wieser

Wireless Sensor Networks (WSNs) are a cutting-edge domain in the field of intelligent sensing. Due to sensor failures and energy-saving strategies, the collected data often have massive missing data, hindering subsequent analysis and…

Machine Learning · Computer Science 2025-04-23 Chengjun Yu , Yixin Ran , Yangyi Xia , Jia Wu , Xiaojing Liu

This paper proposes a high-accuracy radio map construction method tailored for environments where location information is affected by bursty errors. Radio maps are an effective tool for visualizing wireless environments. Although extensive…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Koki Kanzaki , Koya Sato
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