1. Location systems for ubiquitous computing;Hightower;Computer,2001
2. Pervasive computing: vision and challenges;Satyanarayanan;IEEE Personal Communications,2001
3. Radar: an in-building rf-based user location and tracking system;Bahl,2000
4. Practical robust localization over large-scale 802.11 wireless networks;Haeberlen,2004
5. Hyperbolic location fingerprinting: a calibration-free solution for handling differences in signal strength (concise contribution);Kjærgaard,2008