Gated Recurrent Unit with RSSIs from Heterogeneous Network for Mobile Positioning

Table 2

Positioning error comparison of deep learning techniques with different memory lengths and RSSIs from different networks.

Memory length (s)	RNN			LSTM			GRU
	Cell	Wi-Fi	Cell + Wi-Fi	Cell	Wi-Fi	Cell + Wi-Fi	Cell	Wi-Fi	Cell + Wi-Fi
1	12.43	8.00	7.63	11.42	7.23	9.06	11.18	7.10	7.16
2	14.16	7.16	9.43	15.00	7.85	10.22	13.59	6.28	5.86
3	24.66	9.75	10.89	24.61	9.69	12.98	20.00	9.14	7.12
5	13.13	7.16	7.36	11.55	7.14	7.30	11.24	7.18	7.08
10	11.76	7.48	7.76	6.88	7.18	7.28	10.01	6.78	7.06
15	11.68	6.77	7.73	6.74	6.76	6.80	6.86	6.73	6.74