Table 1 Network parameter setting

Number of nodes

30

Simulation range

1000 m × 1000 m

MAC layer

802.11 DCF

Wireless channel bandwidth

11 Mbps

Transfer model

WaveLan model

Motion model

Random waypoint mobility

Node pause time

Random

Data transmision rate

1 Mbps

Data channel packet size

1024 bytes

Control channel packet size

128 bytes

Transmission range

0~80

Max speeds

10~50 m/s

Simulation times

900 s