Low-Overhead WiFi Fingerprinting

Low-Overhead Bug Fingerprinting for Fast Debugging

There is a gap between the information available at the time of a software failure and the information actually shipped to developers in the corresponding bug report. As a result, identifying the cause of the bug based on this bug report is often difficult. To close this gap, we propose bug fingerprints—an augmentation of classic automated bug reports with runtime information about how the repo...

Adaptive WiFi Fingerprinting for Location Approximation

WiFi has become an essential technology that is widely used nowadays. It is famous due to its convenience to be used with mobile devices. This is especially true for Internet users worldwide that use WiFi connections. There are many location based services that are available nowadays which uses Wireless Fidelity (WiFi) signal fingerprinting. A common example that is gaining popularity in this e...

Performance Comparison of WiFi and UWB Fingerprinting Indoor Positioning Systems

Ultra-wideband (UWB) and WiFi technologies have been widely proposed for the implementation of accurate and scalable indoor positioning systems (IPSs). Among different approaches, fingerprinting appears particularly suitable for WiFi IPSs and was also proposed for UWB IPSs, in order to cope with the decrease in accuracy of time of arrival (ToA)-based lateration schemes in the case of severe mul...

Effect of Body-Environment Interaction on WiFi Fingerprinting

Weighted Fingerprinting Localization based on a Multichannel WiFi Map

WiFi localization based on fingerprinting method became popular during last decade. However, collecting information to construct a WiFi signal map is challenging due to high cost. We assume that it is possible to gather such information with cheap cost using crowd sourcing with smartphones. Each user’s current location is estimated by either GPS, WiFi, radio cell signals or manually set by the ...