Ensuring fair access in IEEE 802.11p-based vehicle-to-infrastructure networks

EURASIP Journal on Wireless Communications and Networking

Table 4 Data transferred (per node and total): default CW_min and optimal CW_min $(μ v_{S} = 60 km/hr, μ_{v_{F}} = 120 km/hr, σ_{v_{S}} = σ_{v_{F}} = 5 km/hr, k_{jam} = 80 and 160 veh/km/lane)$

Number of vehicles	CW_min settings		Slow vehicle (Mb)		Fast vehicle (Mb)		Total (Mb)
			Analytical	Simulation	Analytical	Simulation	Analytical	Simulation
	Default	W_S,min= 16 W_F,min= 16	3.1035	3.0754	1.5517	1.5487	45.008	44.6495
n_S = 12		W_S,min= 32 W_F,min= 32	3.3499	3.3373	1.6749	1.6671	48.5738	48.3886
n_F = 5	Bit-based fairness	$W_{S, min}^{*} = 30$ W_F,min= 16	2.5594	2.4681	2.5239	2.5765	42.7313	42.5433
		$W_{S, min}^{*} = 62$ W_F,min= 32	2.6636	2.6433	2.7026	2.7428	45.4772	45.5108
	Default	W_S,min= 16 W_F,min= 16	1.3442	1.3545	0.6710	0.6806	40.3263	40.6703
n_S = 12		W_S,min= 32 W_F,min= 32	1.4941	1.4863	0.7470	0.7317	44.8250	44.4757
n_F = 10	Bit-based fairness	$W_{S, min}^{*} = 30$ W_F,min= 16	1.1130	1.0940	1.1267	1.1487	39.0941	38.8381
		W_S,min= 16 $W_{F, min}^{*} = 9$	1.3189	1.2732	1.3014	1.2602	45.9882	44.4360
		$W_{S, min}^{*} = 62$ W_F,min= 32	1.2259	1.2042	1.2286	1.2408	42.9354	42.5139