Low-Cost and Long-Range Node-Assisted WiFi Backscatter Communication for 5G-Enabled IoT Networks

Table 1

Main simulation parameters for PHY and MAC layers of WiFi.

Parameter	Description	Value
PHY model
	Data rate of MCS 4/MCS 8	3.9/7.8 Mb/s
	Basic rate	0.65 Mb/s
PHY header	Length of PHY header	160 μs
MAC model
	Duration of SIFS interval	160 μs
	Duration of DIFS interval	264 μs
	Duration of an IEEE 802.11ah time slot	52 μs
	Length of DATA packets	1000 bytes
	Length of ACK packets	14 bytes
MAC header	()@	46 μs
Route header	20 bytes@	21 μs
	1000 bytes@	1026 μs
	()@	39 μs
	Minimum value of contention window	16
	Maximum backoff stage	7