Optimization of Transmission Signal Power through Observation of Congestion in VANets Using the Fuzzy Logic Approach: A Case Study in Highway and Urban Layout

Table 1

Simplified set of logical rules to characterize local congestion.

		Traffic density [vehicles/km/lane]
	Congestion level	…	Low (B)	Mean (M)	High (A)	Very high (Ma)
	Parked (P)	…	moderate	severe	absolute	absolute
	Very slow (Ml)	…	weak	moderate	severe	severe
	…	…	…	…	…	…
	Slow (L)	…	free	weak	moderate	moderate
Speed [km/h]	…	…	…	…	…	…
	Moderated (M)	…	free	weak	weak	moderate
	High (A)	…	free	free	free	weak
	Race car (Rc)	…	free	free	free	free

Rules omitted for convenience of example. Italic cells identify the activated rules as illustrated in Figure 5.