Location Privacy Protection Scheme for LBS in IoT

Table 3

The calculation of latitude.

Latitude region	Left interval 0	Right interval 1	39.909
(-90.0, 90.0)	(-90.0, 0.0)	(0.0, 90.0)	1
(0.0, 90.0)	(0.0, 45.0)	(45.0, 90.0)	0
(0.0, 45.0)	(0.0, 22.5)	(22.5, 45.0)	1
(22.5, 45.0)	(22.5, 33.75)	(33.75, 45.0)	1
(33.75, 45.0)	(33.75, 39.37)	(39.38, 45.0)	1
(39.375, 45.0)	(39.375, 42.18)	(42.19, 45.0)	0
(39.375, 42.19)	(39.375, 40.78)	(40.78, 42.19)	0
(39.375, 40.78)	(39.375, 40.07)	(40.08, 40.78)	0
(39.375, 40.08)	(39.375, 39.72)	(39.73, 40.08)	1
(39.73, 40.08)	(39.73, 39.90)	(39.90, 40.08)	1