Indoor Localisation Based on GSM Signals: Multistorey Building Study

Table 6

Mean errors analysis with respect to the number of visible BTSs.

Visible BTSs	1	2	3	4	5	6	7
Distribution	9%	2%	9%	18%	22%	25%	15%
Effectiveness (floor)	27%	63%	47%	60%	63%	64%	70%
Floor error	1.33	0.61	0.88	0.77	0.80	0.77	0.74
Error for [m]	6.49	6.45	4.29	3.24	2.92	3.04	2.99
Error for [m]	5.94	5.38	5.96	6.06	4.90	4.34	3.87
Horizontal error [m]	9.74	9.49	8.08	7.53	6.30	5.89	5.38
Results under the assumption that the floor’s prediction was correct
Error for [m]	7.05	7.60	3.26	2.95	2.51	2.76	2.68
Error for [m]	6.05	5.39	5.70	5.38	3.69	3.49	3.72
Horizontal error [m]	10.49	10.49	7.05	6.70	5.03	5.01	5.08