4.3.2.3 Sample Impoverishment................ 564.3.2.4 Result Sequence.................... 574.4 Devices.................................. 574.5 Fat Client................................. 574.6 Evaluation................................. 594.7 Summary................................. 605 Implementation 635.1 Third Party Libraries........................... 645.2 Modules.................................. 675.2.1 Server............................... 685.2.2 Localization Algorithms..................... 705.2.3 Fat Client............................. 725.3 Summary................................. 736 Evaluation 756.1 Radio Propagation Model........................ 766.1.1 Scene and Setup......................... 766.1.1.1 3D-Model and Materials................ 766.1.1.2 Accesspoints...................... 776.1.1.3 Devices......................... 786.1.1.4 Training Corpus.................... 796.1.2 Training of free Parameters................... 806.1.2.1 Granularity of the 3D geometry............ 816.1.2.2 Multiple Devices.................... 826.2 Localization................................ 826.2.1 Scene and Setup......................... 826.2.2 Synthetic Measurements..................... 846.2.3 Real World Measurements.................... 876.2.3.1 Device Adaptation................... 886.2.3.2 Multiple Devices.................... 896.2.3.3 Granularity of the 3D geometry............ 916.3 Summary................................. 92