Privacy-Preserving Location-Based Query Using Location Indexes and Parallel Searching in Distributed Networks

Table 1

Experimental parameters.

Average service delay request (second)	Average location precision (mile)	Request amount	Average spatial request (𝑘𝑠)	Average temporal request (𝑘𝑡)	Minimum radius 𝑅min in average anonymous area (mile)	Maximum radius 𝑅max in average anonymous area (mile)
1	50.03	466034	4.49	4.50	274.94	637.11
1	50.04	503432	3.50	3.50	275.43	637.43
1	50.08	453293	2.50	2.50	275.10	636.67
5	50.06	457712	4.50	4.50	275.08	637.25
5	49.98	446796	3.50	3.50	275.19	636.99
5	50.01	442778	2.50	2.50	275.12	637.86
10	50.08	456924	4.50	4.50	274.79	637.74
10	49.93	697428	3.50	3.49	275.01	637.54
10	49.98	681940	2.50	2.49	274.84	637.43
10	50.00	493648	2.50	2.50	525.21	1263.51
10	49.97	455932	2.49	2.50	774.50	1387.06
20	49.97	448366	2.50	2.51	275.27	637.64
30	50.03	472418	2.50	2.50	275.37	637.87