Table1: Simulation environments

PHY layer IEEE 802.11a
Basic rate 6 Mbps
Frame payload 1024 bytes
RTS frame length 20 bytes
CTS frame length 14 bytes
ACK frame length 14 bytes
Pulse tx time 5 μs
Tone tx time 5 μs
DIFS 34 μs
SIFS 16 μs
Slot Time 9 μs
CWmin size 256
CWmax size 8
Number of nodes 25
Transmission range 60m
Antenna number 4
Simulation area 400m × 400m
Simulation time 3 s