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- research-articleJuly 2023
Crowdsourcing landmark-assisted localization with deep learning
Future Generation Computer Systems (FGCS), Volume 144, Issue CPages 256–270https://doi.org/10.1016/j.future.2023.02.017AbstractOwing to the ubiquity of wireless networks, WiFi fingerprinting is widely applied in indoor localization. However, constructing a comprehensive radio map for WiFi indoor localization is labor intensive and time consuming. Additionally, ...
Highlights- Proposed a crowdsourced landmark-based approach utilizing deep learning.
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- research-articleJanuary 2023
Passive infrared sensor dataset and deep learning models for device-free indoor localization and tracking
AbstractLocation estimation or localization is one of the key components in IoT applications such as remote health monitoring and smart homes. Amongst device-free localization technologies, passive infrared (PIR) sensors are one of the ...
- research-articleOctober 2021
Flight Speed Derivation of Helicopter Mobile System
ICCCM '21: Proceedings of the 9th International Conference on Computer and Communications ManagementPages 201–206https://doi.org/10.1145/3479162.3479192This paper derives a maximum flight speed for a helicopter mobile system (HMS) through verifying the communication area of HMS. This prevents the mobile terminal of disaster victims to miss detecting radio wave when the HMS's radio wave reaches them. ...
- research-articleMarch 2021
A Novel Distributed Sensor Fusion Algorithm for RSSI-Based Location Estimation Using the Unscented Kalman Filter
Wireless Personal Communications: An International Journal (WPCO), Volume 117, Issue 2Pages 607–621https://doi.org/10.1007/s11277-020-07888-wAbstractWe address the Bayesian sensor fusion approach for distributed location estimation in the wireless sensor network. Assume each sensor transmits local calculation of target position to a fusion center, which then generates under a Bayesian ...
- research-articleJanuary 2020
Circular array design based on Bayesian Cramer–Rao bound
Multidimensional Systems and Signal Processing (MULT), Volume 31, Issue 1Pages 317–328https://doi.org/10.1007/s11045-019-00668-1AbstractIn this paper, we consider circular array design in the presence of a far-field or a near-field signal source. The location of the source is introduced to our optimization problem by its probability density function (PDF) as a priori information. ...
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- research-articleNovember 2019
Analysis of the effectiveness of transmission power control as a location privacy technique
Computer Networks: The International Journal of Computer and Telecommunications Networking (CNTW), Volume 163, Issue Chttps://doi.org/10.1016/j.comnet.2019.106880AbstractLocation privacy is an increasing source of concern for wireless users since their positions can be unwittingly estimated by malicious eavesdroppers. Transmission power control (TPC) is one of the various obfuscation techniques ...
- research-articleFebruary 2019
Location estimation and detection in wireless sensor networks in the presence of fading
Physical Communication (PHYCOM), Volume 32, Issue CPages 62–74https://doi.org/10.1016/j.phycom.2018.10.010AbstractIn this paper, localization using narrowband communication signals are considered in the presence of fading channels with time of arrival measurements. When narrowband signals are used for localization, due to existing hardware ...
- articleSeptember 2018
A Novel Location Estimation for Indoor WLAN Rectangular Node Geometry
Wireless Personal Communications: An International Journal (WPCO), Volume 102, Issue 1Pages 495–506https://doi.org/10.1007/s11277-018-5854-7Indoor Wireless Local Area Network location estimation using received signal strength indication (RSSI) has gained importance due to its low cost and implementation simplicity. This paper presents RSSI based localisation accuracy for user nodes arranged ...
- research-articleFebruary 2018
The Advanced Indoor Position System with Gaussian Process Method
ICIGP '18: Proceedings of the 2018 International Conference on Image and Graphics ProcessingPages 165–170https://doi.org/10.1145/3191442.3191445Location data is the most widely used context data in ubiquitous and mobile computing applications. To support locating applications in indoor positioning, many systems with distinct deployment costs and positioning accuracies have been manipulated ...
- articleJanuary 2018
Joint mode selection and resource allocation in D2D communication based underlaying cellular networks
Telecommunications Systems (TESY), Volume 67, Issue 1Pages 47–62https://doi.org/10.1007/s11235-017-0320-5Device-to-Device (D2D) communication technology, under the standardization of third generation partnership project and a component of the evolving fifth generation architecture, is mainly aimed to increase system capacity and data rate via providing ...
- articleAugust 2017
ERLAK: On the Cooperative Estimation of the Real-Time RSSI Based Location and K Constant Term
Wireless Personal Communications: An International Journal (WPCO), Volume 95, Issue 4Pages 3923–3932https://doi.org/10.1007/s11277-017-4032-7Nowadays location estimation using WiFi networks in indoor environments has become a hot research topic. Challenging methods without calibration or hardware integration are essentially required for cost-effective and practical solutions. The Received ...
- articleAugust 2017
A survey on location estimation techniques for events detected in Twitter
Knowledge and Information Systems (KAIS), Volume 52, Issue 2Pages 291–339https://doi.org/10.1007/s10115-016-1007-zDetection of events using voluntarily generated content in microblogs has been the objective of numerous recent studies. One essential challenge tackled in these studies is estimating the locations of events. In this paper, we review the state-of-the-...
- research-articleJune 2016
Location Estimation Using Crowdsourced Spatial Relations
ACM Transactions on Spatial Algorithms and Systems (TSAS), Volume 2, Issue 2Article No.: 5, Pages 1–23https://doi.org/10.1145/2894745The “crowd” has become a very important geospatial data provider. Specifically, nonexpert users have been providing a wealth of quantitative geospatial data (e.g., geotagged tweets or photos, online). With spatial reasoning being a basic form of human ...
- research-articleFebruary 2015
Localizing multiple audio sources in a wireless acoustic sensor network
Signal Processing (SIGN), Volume 107, Issue CPages 54–67https://doi.org/10.1016/j.sigpro.2014.08.013In this work, we propose a grid-based method to estimate the location of multiple sources in a wireless acoustic sensor network, where each sensor node contains a microphone array and only transmits direction-of-arrival (DOA) estimates in each time ...
- ArticleMay 2014
Range-Free Localization Algorithm for IEEE802.11 WLAN Based on K-NN
CICSYN '14: Proceedings of the 2014 Sixth International Conference on Computational Intelligence, Communication Systems and NetworksPages 164–169https://doi.org/10.1109/CICSyN.2014.43Nowadays, localization of mobile node using wireless local area network (WLAN) become a most emerging area. Its location based services leads to make it applicable in various fields like intruder identification, healthcare system, navigation etc. To ...
- articleFebruary 2014
Location error estimation in wireless ad hoc networks
Many ad hoc network applications rely on nodes having accurate knowledge of their geographic locations. However, inherent in all localization systems is a degree of error in computed positions, which can compromise the accuracy and efficiency of ...
- articleMay 2013
Performance Analysis of Received Signal Strength Fingerprinting Based Distributed Location Estimation System for Indoor WLAN
Wireless Personal Communications: An International Journal (WPCO), Volume 70, Issue 1Pages 113–127https://doi.org/10.1007/s11277-012-0682-7Location Estimation has become important for many applications of indoor wireless networks. Received Signal Strength (RSS) fingerprinting methods have been widely used for location estimation. Most of the location estimation system suffers with the ...
- ArticleJanuary 2013
Indoor localization improvement via adaptive RSS fingerprinting database
ICOIN '13: Proceedings of the 2013 International Conference on Information Networking (ICOIN)Pages 412–416https://doi.org/10.1109/ICOIN.2013.6496414In location fingerprinting based indoor positioning system, received signal strength (RSS) indications from a set of Wi-Fi access points are used as a unique fingerprint to identify a specific location. However these RSS fingerprints may become outdated ...
- articleOctober 2012
Time difference localization in the presence of outliers
Signal Processing (SIGN), Volume 92, Issue 10Pages 2432–2443https://doi.org/10.1016/j.sigpro.2012.03.004In this work we examine new ways to solve a time-difference-of-arrival (TDOA) localization problem when the set of measurements is contaminated by outliers. The proposed method relies on the minimization of an L"p-norm based cost function with p@?(0,1]. ...
- ArticleSeptember 2012
SOSCast: Location Estimation of Immobilized Persons through SOS Message Propagation
INCOS '12: Proceedings of the 2012 Fourth International Conference on Intelligent Networking and Collaborative SystemsPages 428–435https://doi.org/10.1109/iNCoS.2012.101This paper proposes the design of SOS Cast, an application that will assist the search for immobilized persons in a disaster area. When a catastrophic disaster such as an earthquake or tsunami occurs, people may be injured and trapped in damaged ...