Using context information to improve indoor localization

Localization is an essential service in many context-aware applications and in ambient assisted living (AAL). A promising localization approach is based on Wireless Sensor Networks [1]. These solutions estimate the location of the mobile sensors (also called mobiles) with respect to a set of fixed sensors (or anchors) whose position is known. In this work, we consider a range-based localization [2], that exploits measurements of Received Signal Strength Indicator (RSSI). The use of the RSSI does not require any special hardware and it is available in most of the standard wireless devices, and it has received considerable interest in the recent literature [3].