Fabricio A. Toasa Luis Tello-Oquendo Carlos R. Peñafiel-Ojeda Giovanny Cuzco Experimental Demonstration for Indoor Localization Based on AoA of Bluetooth 5.1 Using Software Defined Radio. 1-4 2021 CCNC https://doi.org/10.1109/CCNC49032.2021.9369638 conf/ccnc/2021 db/conf/ccnc/ccnc2021.html#ToasaTPC21