Results 11 to 20 of about 438,835 (245)
OLBS: Offline Location Based Services [PDF]
2011 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
, 2011 Location based services (LBS) are considered by some to be the ‘golden child” of wireless data services and one of the few areas where users would be willing to pay a premium for usage. Mobile Operators however are yet to be convinced, and despite acknowledging location services as strategic, have not considered it a priority.
Kirk Mitchell, Mark Whitmore
+5 more sources
Hall of Mirrors: A Novel Strategy to Address Locality in Geocoded-Based PoI Private Queries
IEEE Access, 2022 Location privacy techniques try to protect user’s information by altering, aggregating or generalizing it. Geographical codification techniques, like Geohash, can be used to protect individual locations altering the precision of the location so it
Pedro Wightman +3 more
doaj +1 more source
3-D Spatial Spectrum Fusion Indoor Localization Algorithm Based on CSI-UCA Smoothing Technique
IEEE Access, 2018 In the indoor wireless localization environment, the non-line-of-sight receiving signal and low signal-to-noise ratio are usually strongly dominant issues due to the heavy existence of multipath signals, which also restrict the final wireless ...
Di He +5 more
doaj +1 more source
BDS-3 Integrity Risk Modeling and Probability Evaluation
Remote Sensing, 2022 Focusing on the global integrity monitoring performance of the BDS-3, the integrity failure model and effect analysis (IFMEA) of the system space segment and the ground control segment were carried out, and the system integrity risk tree model was ...
Lei Chen +9 more
doaj +1 more source
Exploration of Location-Based Services Adoption [PDF]
2011 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 +9 more sources
Sensors, 2019 Consistent state estimation is a vital requirement in numerous real life applications from localization to multi-source information fusion. The Kalman filter and its variants have been successfully used for solving state estimation problems.
Muhammad Adeel Akram +4 more
doaj +1 more source
Vector Graph Assisted Pedestrian Dead Reckoning Using an Unconstrained Smartphone
Sensors, 2015 The paper presents a hybrid indoor positioning solution based on a pedestrian dead reckoning (PDR) approach using built-in sensors on a smartphone. To address the challenges of flexible and complex contexts of carrying a phone while walking, a robust ...
Jiuchao Qian +4 more
doaj +1 more source
Sensors, 2019 Noise uncertainty and signal-to-noise ratio (SNR) wall are two very serious problems in spectrum sensing of cognitive radio (CR) networks, which restrict the applications of some conventional spectrum sensing methods especially under low SNR ...
Di He +4 more
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User location privacy protection mechanism for location-based services
Digital Communications and Networks, 2021 With the rapid development of the Internet of Things (IoT), Location-Based Services (LBS) are becoming more and more popular. However, for the users being served, how to protect their location privacy has become a growing concern.
Yan He, Jiageng Chen
doaj +1 more source