Table 2.

Summary of key notations.

Notation	Definition
R	Set of RSU, $R=r_1,r_2,r_3,\dots ,r_n$
B	Set of Macro Base Station, $B=b_1,b_2,b_3,\cdots ,b_n$
V	Set of vehicles, $V=v_1,v_2,\dots ,v_n$
C	Set of contents, $C=c_1,c_2,\dots ,c_n$
f	Chunks size
B	Bandwidth
r	Coverage radius of RSU
s	Speed of vehicle
$d_{vv}$	Distance between vehicles
$d_{vr}$	Distance between vehicle and infrastructure
$\gamma$	Zipf Exponent
t	Tolerance time