Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"Location based services"”.
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Location based services in wireless ad hoc networks
"In this dissertation, we investigate location based services in wireless ad hoc networks from four different aspects - i) location privacy in wireless sensor networks (privacy), ii) end-to-end secure communication in randomly deployed wireless sensor networks (security), iii) quality versus …
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Integrating Haptic Feedback into Mobile Location Based Services
… important additional method especially in Mobile Location Based Services such as knowledge discovery, pedestrian navigation and notification systems. A knowledge discovery system called the Haptic GeoWand is a low interaction system that allows users to query geo-tagged data around them by using a …
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Energy-Efficient and Trustworthy Location-Based Services for Next-Generation IoT
… with their environments. Within this ecosystem, Location-Based Services (LBS) have emerged as a cornerstone technology, enabling context-aware applications in domains as diverse as industrial automation, healthcare, smart cities, and precision agriculture. Yet, delivering LBS that are at once …
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Framework for developing and deploying location-based services in emerging economies
The general belief is that Location-Based Services (LBS) in emerging economies does not make much sense until there is widespread availability of geographic information system (GIS) data, broadband internet access, payment methods, infrastructure such as power, well developed advertising platform, …
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Exploring Techniques for Providing Privacy in Location-Based Services Nearest Neighbor Query
Increasing numbers of people are subscribing to location-based services, but as the popularity grows so are the privacy concerns. Varieties of research exist to address these privacy concerns. Each technique tries to address different models with which location-based services respond to …
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OpenLS for indoor positioning : strategies for standardizing location based services for indoor use
The combination of location positioning technologies such as GPS and initiatives like the US Federal Communications Commission's E911 telecommunication initiatives has generated a lot of interest in applications and services that are a function of a user's location, referred to as location-based …
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Consumer Location Based Service Perceptions and Response: a focus on Location Based Services and Emerging Mobile Lifestyles
Location Based Services (LBS) and electronically mediated lifestyles (e-lifestyles) represent emergent new areas with approaches (e.g. apps and e-activities) billed to change customer experiences and responses. Marketers are confronted with a challenge of understanding how consumers engage with …
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A model for the evaluation of location based services in South Africa based on soft systems methodology and the process-outcomes model
… to achieve this. In the context of evaluating Location Based Services (LBS) in South Africa, a conceptual framework was developed to combine the holistic, systems thinking apporach of Soft Systems Methodology (SSM) and the reductionist approach of metrics and the Process Outcomes model.
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An architecture and protocol, an access control model, and a sighting blurring algorithm for improving users' security in the context of location based services operating over the internet
A new type of service, known as a Location Based Service (LBS), is emerging that incorporates users' location information, and many of these LBSs operate over the Internet. However, the potential misuse of this location information is a serious concern. Therefore, the main goal of this thesis is to …
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Design and Implementation of System Components for Radio Frequency Based Asset Tracking Devices to Enhance Location Based Services. Study of angle of arrival techniques, effects of mutual coupling, design of an angle of arrival algorithm, design of a novel miniature reconfigurable antenna optimised for wireless communication systems
… source estimation is proposed and evaluated based on the performance of subspace and non-subspace decomposition methods. The proposed scheme has shown to outperform the conventional Multiple Signal Classification (MUSIC) estimation and Bartlett estimation techniques. The new scheme has a …
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Towards Efficient Processing of Big Spatial Data
The ubiquity of location-aware devices has resulted in a plethora of location-based services in which huge amounts of spatial data need to be efficiently processed. To cope with such proliferation of spatial data, this dissertation addresses two key issues that are overlooked by existing …
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Etherthreads : an infrastructure for location-based messages
This thesis proposes an infrastructure for location-based services for Bluetooth enabled cellular phones. Specifically, it explores the use of this architecture in a location-based messaging application. A user can send or receive messages based on their current location, thereby increasing the …
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A cryptographic approach to location privacy
The rapid expansion of location-based services (LBS) has driven an escalating demand for personalised and context-aware applications, enriching user experiences across health, weather, and navigation sectors. These services offer valuable insights into various applications using large-scale …
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iNav : a hybrid approach to WiFi localization and tracking of mobile devices
… presents iNav - a hybrid system for 802.11-based localization targeted at low-power mobile devices. WiFi localization enables numerous location-based services and applications without requiring a separate GPS module, thus offering device cost and power consumption savings. iNav is a WiFi …
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PRIVACY PRESERVATION IN LOCATION-BASED PROXIMITY SERVICES
One of the most common location-based services (LBS) in the geo-aware social network market is the notification of friends geographically in proximity. In addition to the privacy threats related to the use of traditional LBS, there are other privacy threats specific to proximity services. Existing …
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Coordinación de servicios Web: de las aplicaciones a los modelos formales
… working distributed systems in the context of Location Based Services. The coordination service is based on JavaSpaces (an implementation of the Linda coordination model) and provides a set of services to communicate and synchronize heterogeneous applications distributed over the Internet. …
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A fine-grained geospatial representation and framework for large-scale indoor environments
… the representation and dataset to provide rich location-based services within indoor environments.
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