An Adaptive Information Quantity-Based Broadcast Protocol for Safety Services in VANET

Table 2

Communication parameters of vehicles.

Parameter	Value
Average length of vehicle	4 m
Safety length between vehicles	2 m
Temporal fading factors ,	0.5, 0.8
Spatial weight factors ,	0.4, 0.6
Type weight factors ,	2, 10
	ms
Emergency-degree threshold
Broadcast probability
	Minimum size of
Adaptation factor threshold
Weight factor	6