263 Hits in 4.7 sec

Taylor series method in TDOA approach for indoor positioning system

Diniya Jose, Shoney Sebastian
2019 International Journal of Electrical and Computer Engineering (IJECE)  
Ultrasonic sensors are mainly used for localisation of mobile robots since they provide high accuracy.  ...  Localisation technologies have always remained in the limelight of positioning-science as researchers have ever shown keen interest to know the exact positions of things.  ...  They can be classified on the basis of need for hardware .That is, based on technologies that contain all the necessary hardware within it and technologies that require additional hardware for positioning  ... 
doi:10.11591/ijece.v9i5.pp3927-3933 fatcat:ekm6q5cgbfcdxfyimbmgbwxzza

Wireless Localisation in WiFi using Novel Deep Architectures [article]

Peizheng Li, Han Cui, Aftab Khan, Usman Raza, Robert Piechocki, Angela Doufexi, Tim Farnham
2020 arXiv   pre-print
This paper studies the indoor localisation of WiFi devices based on a commodity chipset and standard channel sounding.  ...  We extensively evaluate these localisation algorithms for continuous tracking in indoor environments.  ...  Abstract-This paper studies the indoor localisation of WiFi devices based on a commodity chipset and standard channel sounding.  ... 
arXiv:2010.08658v1 fatcat:6pufnymtsrepnidh5xtxbuoi7m

Evaluation of Bluetooth Properties for Indoor Localisation [chapter]

Khuong Nguyen, Zhiyuan Luo
2013 Lecture Notes in Geoinformation and Cartography  
Amongst those, Bluetooth has been widely known for its low-power consumption, small maintenance cost, as well as its wide-spread amongst the commodity devices.  ...  Current indoor localisation systems make use of common wireless signals such as Bluetooth, WiFi to track the users inside a building.  ...  Another alternative is the Bluetooth wireless signal, which has been widely known for its low-power consumption, small maintenance and installation cost, as well as its ubiquitous amongst the commodity  ... 
doi:10.1007/978-3-642-34203-5_8 fatcat:rz2f4vwxdnhlbiqyusrz6m2f2a

Leveraging Urban Sounds: A Commodity Multi-Microphone Hardware Approach for Sound Recognition

Fabrizio Tappero, Rosa Alsina-Pagès, Leticia Duboc, Francesc Alías
2019 Proceedings (MDPI)  
In this paper we present a cloud-based urban sound analysis system for the capturing, processing and trading of urban sound-based information.  ...  We discuss how the presented architecture is designed to allow the trading of sound information between independent parties, transparently, using cloud-based sound processing APIs running on an inexpensive  ...  costs of sound exploitation systems.  ... 
doi:10.3390/ecsa-5-05756 fatcat:q4lse72dyfei3b4crbjds4vsra

Deep Transfer Learning for WiFi Localization [article]

Peizheng Li, Han Cui, Aftab Khan, Usman Raza, Robert Piechocki, Angela Doufexi, Tim Farnham
2021 arXiv   pre-print
This paper studies a WiFi indoor localisation technique based on using a deep learning model and its transfer strategies.  ...  similar to the base models.  ...  On the contrary, WiFi, due to its widespread adoption, low cost, and the standardized protocols, is a good candidate for pervasive indoor localisation.  ... 
arXiv:2103.05123v1 fatcat:pkofflnokjbm7n3u6gr2hvq7v4

Environmental exposure assessment using indoor/outdoor detection on smartphones

Theodoros Anagnostopoulos, Juan Camilo Garcia, Jorge Goncalves, Denzil Ferreira, Simo Hosio, Vassilis Kostakos
2017 Personal and Ubiquitous Computing  
We present an energy-efficient method for Indoor/ Outdoor detection on smartphones.  ...  Our work enables researchers to quantify environmental exposure using commodity smartphones.  ...  On the other hand, in our work we seek to provide an energy-efficient Indoor/Outdoor detection on commodity smartphones.  ... 
doi:10.1007/s00779-017-1028-y fatcat:vqz56j3rynepdlaxtbjyoiiofy

Efficient Indoor Positioning with Visual Experiences via Lifelong Learning

Hongkai Wen, Ronald Clark, Sen Wang, Xiaoxuan Lu, Bowen Du, Wen Hu, Niki Trigoni
2018 IEEE Transactions on Mobile Computing  
Such second-order information is recorded as parameters, which provide key insights of the context and empower our system to dynamically optimise itself to stay localised with minimum cost.  ...  We implement the proposed approach on an array of mobile and wearable devices, and evaluate its performance in two indoor settings.  ...  In future localisation, our positioning system actively tunes its visual processing pipeline according to the learned parameters, to achieve accurate and realtime localisation on resource-constrained platforms  ... 
doi:10.1109/tmc.2018.2852645 fatcat:bbrkrph3brcmveo4daohnlzjo4

D7.5 Main Results and Exploitation Goals

Moshe Ran
2020 Zenodo  
Location Based Data Access System software was produced with Ethernet as a substitute for the IoRL 5G RAN and localisation system.  ...  (lower final product cost).  ...  It is very helpful to optimize indoor positioning accuracy. rd LED Fingerprinting Security Simulator This is novel definition to identify LED hardware device.  ... 
doi:10.5281/zenodo.4668708 fatcat:fuqiyhyfsbgf5bumpvlixkftlu

Spectral-Loc: Indoor Localization using Light Spectral Information [article]

Yanxiang Wang, Jiawei Hu, Hong Jia, Wen Hu, Mahbub Hassan, Ashraf Uddin, Brano Kusy, Moustafa Youssef
2022 arXiv   pre-print
For indoor settings, we investigate the impact of location on the spectral distribution of the received light, i.e., the intensity of light for different wavelengths.  ...  By exploiting this observation, we propose Spectral-Loc, a novel indoor localization system that uses light spectral information to identify the location of the device.  ...  These sensors are low-cost low-power devices that have been introduced in the market relatively recently.  ... 
arXiv:2206.14401v1 fatcat:dbnq3eigjzeyhnewfupf3nv4ba


Erroll Wood, Andreas Bulling
2014 Proceedings of the Symposium on Eye Tracking Research and Applications - ETRA '14  
In this paper we present EyeTab, a model-based approach for binocular gaze estimation that runs entirely on an unmodified tablet.  ...  Estimating gaze on portable devices is challenging given the limited computational resources, the low quality of the integrated front-facing RGB camera, and the small screen to which gaze is mapped.  ...  Conclusion We presented EyeTab, the first model-based binocular gaze estimation system for unmodified tablet computers.  ... 
doi:10.1145/2578153.2578185 dblp:conf/etra/WoodB14 fatcat:sfk7dyu5jvhgfl6mpq6ve2tfni

Going beyond vision to improve bionic vision

Wai Ho Li, Titus Jia Jie Tang, Wen Lik Dennis Lui
2013 2013 IEEE International Conference on Image Processing  
Currently, most implanted visual prosthetic systems generate vision by translating sensor data from a headworn camera into electrical stimulation of the human vision system.  ...  Unfortunately, the resulting bionic vision has low spatial resolution and limited dynamic range. This dramatically reduces the usefulness of bionic vision in many real world scenarios.  ...  Head mounted system used for TR development 6. CONCLUSION Low cost range cameras are now commodity items.  ... 
doi:10.1109/icip.2013.6738320 dblp:conf/icip/LiTL13 fatcat:jhfqfznppvgl3ligwobnv3zye4

Experience Building a Prototype 5G Testbed

Xenofon Foukas, Fragkiskos Sardis, Fox Foster, Mahesh K. Marina, Maria A. Lema, Mischa Dohler
2018 Proceedings of the Workshop on Experimentation and Measurements in 5G - EM-5G'18  
The capabilities of the testbed are demonstrated through the use case of neutral-host indoor small-cell deployments, followed by a discussion on the challenges we faced while building the testbed, which  ...  CCS CONCEPTS • Networks → Wireless access points, base stations and infrastructure; Network experimentation; Mobile networks; KEYWORDS 5G networks, prototype 5G testbed, 5G experimentation ACM Reference  ...  This has made the low-cost deployment of mobile networks over commodity hardware a reality, allowing interested parties outside the telecommunications industry, like academics, to enter into this research  ... 
doi:10.1145/3286680.3286683 fatcat:ms37vc353zeerhp3yb5zyiityi

Recent Advances and Challenges in Ubiquitous Sensing [article]

Stephan Sigg and Kai Kunze and Xiaoming Fu
2015 arXiv   pre-print
Compared to previous environmental sensing approaches, these new systems mitigate high installation and placement cost by providing a robustness towards process noise.  ...  On the other hand, sensing focuses inward and attempts to capture mental activities such as cognitive load, fatigue or emotion through advances in, for instance, eye-gaze sensing systems or interpretation  ...  For WiFi-based indoor localisation, this has already been employed recently to achieve sub-meter accuracy [179] .  ... 
arXiv:1503.04973v1 fatcat:hqebr5ttirfsra6srqyxyo36b4

The Narrowband Internet of Things (NB-IoT) Resources Management Performance State of Art, Challenges, and Opportunities

Emmanuel M. Migabo, Karim D. Djouani, Anish M. Kurien
2020 IEEE Access  
The Narrowband Internet of Things (NB-IoT) has been introduced in the 3rd Generation Partnership Project (3GPP) Rel-13 with the aim to provide low-cost, low-power, wide-area cellular connectivity for the  ...  of the main issues encountered in the design and deployment of NB-IoT systems.  ...  hardware cost (e.g. below $5 [18] ) and the subscription cost per unit device as low as possible (e.g. $1 [19])''.  ... 
doi:10.1109/access.2020.2995938 fatcat:fqbolufnjbfwdpvyquui7yzk7i

The Newer College Dataset: Handheld LiDAR, Inertial and Vision with Ground Truth [article]

Milad Ramezani, Yiduo Wang, Marco Camurri, David Wisth, Matias Mattamala, Maurice Fallon
2020 arXiv   pre-print
and reconstruction systems.  ...  The dataset combines both built environments, open spaces and vegetated areas so as to test localization and mapping systems such as vision-based navigation, visual and LiDAR SLAM, 3D LIDAR reconstruction  ...  In particular we use commercially available low-cost sensors -the widely used Intel Realsense D435i and a 64-beam Ouster LiDAR scanner.  ... 
arXiv:2003.05691v1 fatcat:cf6um7n4gff3ldstt56lwxerpi
« Previous Showing results 1 — 15 out of 263 results