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Location-Based Services [PDF]

open access: yesGeographic Information Science & Technology Body of Knowledge, 2018
Location-Based Services (LBS) are mobile applications that provide information depending on the location of the user. To make LBS work, different system components are needed, i.e., mobile devices, positioning, communication networks, and service and content provider.
Huang, Haosheng, Gao, Song
  +4 more sources

REAL-TIME TROPOSPHERIC PRODUCT ESTABLISHMENT AND ACCURACY ASSESSMENT IN CHINA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Tropospheric delay has always been an important issue in Global Navigation Satellite System (GNSS) processing. Empirical tropospheric delay models are difficult to simulate complex and volatile atmospheric environments, resulting in poor accuracy of the ...
M. Chen   +9 more
doaj   +1 more source

Location-Based Services [PDF]

open access: yes, 2011
This chapter provides an overview of location-based services and insight into the pivotal importance of location-sensitivity to the success of wireless data services. This chapter argues that mass-market adoption of wireless data services will only occur if these services enhance productivity and/or convenience for end-users; transforming novelty into ...
Kirk Mitchell, Mark Whitmore
  +6 more sources

INDOOR SPACE LOCATION MODEL BASED ON LOCATION SERVICE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Location is the basis for the realization of location services, the integrity of the location information and its way of representation in indoor space model directly restricts the quality of location services.
Y. Zhou   +4 more
doaj   +1 more source

Personalized location-based services [PDF]

open access: yesProceedings of the 2011 iConference, 2011
Location-Based Services (LBS) are based on a combination of the inherent location information about specific data, and/or the location information supplied by LBS clients, requesting location-specific and otherwise customized services. The integration of location-annotated data with existing personal and public information and services creates ...
Yiming Liu, Erik Wilde
openaire   +1 more source

Exploration of Location-Based Services Adoption [PDF]

open access: yes2011 44th Hawaii International Conference on System Sciences, 2011
The purpose of this chapter is to explore aspects of user perceptions of their use of location-based services. As mobile technologies become more ubiquitous in the general population, it is reasonable to assume that individuals will consume services and software to enhance their aspirations and entertainment desires. This study begins by constructing a
McKenna, Brad   +3 more
openaire   +7 more sources

DGS-HSA: A Dummy Generation Scheme Adopting Hierarchical Structure of the Address

open access: yesApplied Sciences, 2020
With the increasing convenience of location-based services (LBSs), there have been growing concerns about the risk of privacy leakage. We show that existing techniques fail to defend against a statistical attack meant to infer the user’s location privacy
Mingzhen Li   +8 more
doaj   +1 more source

OLBS: Offline Location Based Services [PDF]

open access: yes2011 Fifth International Conference on Next Generation Mobile Applications, Services and Technologies, 2011
Most existing location-based services rely on ubiquitous connectivity to deliver location-based contents to the users. However, connectivity is not available anywhere at anytime even in urban centres. Underground, indoors, remote areas, and foreign countries are examples situations where users commonly do not have guaranteed connectivity but could ...
Pedro Coelho   +2 more
openaire   +2 more sources

Statistical Multipath Model Based on Experimental GNSS Data in Static Urban Canyon Environment

open access: yesSensors, 2018
A deep understanding of multipath characteristics is essential to design signal simulators and receivers in global navigation satellite system applications.
Yuze Wang, Xin Chen, Peilin Liu
doaj   +1 more source

Memory-Saving Implementation of High-Speed Privacy Amplification Algorithm for Continuous-Variable Quantum Key Distribution

open access: yesIEEE Photonics Journal, 2018
Privacy amplification is an indispensable procedure to share secure secret key between legitimate parties in quantum key distribution (QKD) because a portion of bits are still leaked to eavesdropper Eve after the secret reconciliation. Here, we propose a
Dengwen Li   +4 more
doaj   +1 more source

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