With the availability of GPS receivers in more and more mobile handsets, location sharing
has become the next mobile killer-app. Services like Google Latitude or Yahoo's FireEagle …

Indoor positioning systems are drawing ascending attention from the academia as well as
industry, motivated by a wide variety of indoor location-based services. Among the existing …

Positioning is a basis for providing location information to mobile users. With the GPS signal
strength hindered by the structure, indoor users cannot obtain their positions through their …

Indoor Positioning Systems (IPS) have recently received considerable attention, mainly
because GPS is unavailable in indoor spaces and consumes considerable energy. On the …

Positioning is the foremost process in the location based service (LBS). With the GPS signal
strength obstructed by the wall, indoor users cannot obtain their positions with the …

The widespread adoption of continuously connected smartphones and tablets developed
the usage of mobile applications, among which many use location to provide geolocated …

Wi-Fi fingerprint-based indoor localization is regarded as one of the most promising
techniques for location-based services. However, it faces serious problem of privacy …

Indoor location identification and navigation need to be as simple, seamless, and ubiquitous
as its outdoor GPS-based counterpart is. It would be of great convenience to the mobile user …

Indoor localization plays an important role as the basis for a variety of mobile applications,
such as navigating, tracking, and monitoring in indoor environments. However, many such …

The increasingly connected world magnifies the threats to users' location privacy. Encryption
protocols offer solutions to privacy concerns, but they are computationally very demanding …