Performance Analysis of IEEE 802.11 DCF under Nonsaturation Condition

Table 1

System parameters.

MAC header	272 bits
PHY header	128 bits
ACK length	112 bits + PHY header
Channel bit rate	1 Mbit/s
Propagation delay	1 𝜇s
Slot time	50 𝜇s
SIFS	28 𝜇s
DIFS	128 𝜇s
Initial contention window CW	31
Maximum contention window CW	1023
Maximum backoff stage 𝑚	5 or 7