Parameter

Value

Simulation Time

12 h

Number of Vehicles

150

Simulation Area

4.5 km ´ 3.4 km (Helsinki area)

Communication Range

200 m

TransmissionSpeed

250 KBps

Data Size

500 KB - 2 MB

Size of Buffer Memory

5 MB - 40 MB

Keyword Set Size

40

Number of Keywords in Data

2 - 8

Number of Keywords in Query

3 - 5

Effective Life of Data

0.5 h - 3 h

Effective Range of Data

500 m - 2 km

Zipf Parameter

0.5

Vehicle Speed

10 m/s - 15 m/s

α value

0.5