Capacity of Vehicular Ad Hoc Networks Based on Multibeam Directional Transmission

Table 1

Symbols and parameters’ description.

Symbols and parameters	Explanation
	Number of beams
	Node transmission rate (bit/s)
	The gain of multibeam
	Total communication time
	The set of all nodes transmitting in the same channel simultaneously
	A constant determined by antenna heights, wavelength, and so on
	Euclidean distance between transmitting node and receiving node
	means path loss exponent
	Main lobe gain
	Side lobe gain
	The ratio of the radius of and in the hybrid antenna mode
	The ambient noise power level at the receiver
	Node communication radius
	Average distance from source to destination
	The minimum signal-to-interference plus noise ratio (SINR) for successful receptions at the receiver
	Total number of hops required for the data-bit to move from source to destination