A Privacy-Preserving Location-Based System for Continuous Spatial Queries

Table 1

Experimental environment.

Parameter	Setting values
Number of gird cells	200 × 200
Number of clients	4,000
Client’s movement radius (number of grids)	1~3
-anonymity ()	10
Update time (sec; t)	0, 2, 4, 6
The average number of experiments	10,000