In the current hyper-connected, data-driven era, smart devices are providing access to
geolocation information, enabling a paradigm shift in diverse domains. Location proof …

Digital contact tracing (DCT) is one of the weapons to be used against the COVID-19
pandemic, especially in a post-lockdown phase, to prevent or block foci of infection. As DCT …

One of the key challenges in the ever-changing ubiquitous computing environment of
Internet of Things is accurate determination of each of its' elements location. Indoor …

Mobility data is of great significance because of the recurring events in daily behavior. These
events are consistent and have a hidden structure. Identifying the hidden structures in such …

This thesis aims to propose new approaches to offer proximity-based services while
guaranteeing the privacy and security of the users involved. Proximity-based services …

Indoor localization, as a key enabling technology for Internet of Things (IoT) location-based
applications, is one of the primary services in smart automated systems. It is becoming …

Localization remains a challenging problem in wireless sensor networks community. There
are many algorithms for localization proposed in the literature, ranging from very basic to …