1. Bahl, P., Padmanabhan, V.N.: RADAR: An in-building RF-based user location and tracking system. IEEE INFOCOM, 775–784 (March 2000)
2. ITRI, http://www.itri.org.tw
3. Bahl, P., Balachandran, A., Padmanabhan, V.N.: Enhancements to the RADAR user location and tracking system. Technical report of Microsoft Research (February 2000)
4. Ekahau, http://www.ekahau.com
5. Seshadri, V., Zaruba, G.V., Huber, M.: A Bayesian Sampling Approach to In-door Local-ization of Wireless Devices Using Received Signal Strength Indication. In: IEEE Conference on Pervasive Computing and Communications (PerCom) (March 2005)