Indoor localization: Automatically constructing today's radio map by iRobot and RFIDsLun-Wu Yeh, Ming-Shiou Hsu, Yueh-Feng Lee, Yu-Chee Tseng2009 IEEE Sensors2009For outdoor localization, GPS already provides a satisfactory solution. For indoor localization, however, a globally usable solution is still missing. One promising direction that is proposed… (More)