Performance Comparison of IEEE 802.11p and IEEE 802.11b for Vehicle-to-Vehicle Communications in Highway, Rural, and Urban Areas

Table 5

Comparison of Radio Propagation Models.

Propagation model	Assumed propagation condition	LOS	Communication range
Free space	Ideal	1 clear LOS between transmitter and receiver	Circle
Two-ray ground	Ideal	1 Los between 2 mobile nodes	Circle
Shadowing	Realistic	Los and Nlos	Extended ideal circle