DIMDP: A Driving Intention-Based MDP Service Migration Model under MEC/MSCN Architecture

Table 2

Explanation for Algorithm 2’s variables and functions.

Variable/function	Explanation
V	Vehicle set
(xcn, ycn)	Center coordinates of middle cell
t1	Last moment
t2	Current moment
d	Distance between service requester and service provider
Cset	A set of
pif	As explained in Table 1
Vtarget	The vehicle member currently traversed
get_position (V, t)	Get the position of vehicle V at time t
get_cellnum ((xt, yt), (xcn, ycn))	Obtain the cell number of coordinate (xt,yt) by taking coordinate (xcn, ycn) as a reference point
get_MSCN (cellnum)	Obtain the MSCN id corresponding to cell cellnum
get_rsu (MSCNid)	Obtain the RSU id to which MSCNid belongs
mscnMigration	A map < vehicle_id,flag > which represents the vehicle who’s id is vehicle_id will perform or not service migration at the MSCN level while the flag is true or false
rsuMigration	A map < vehicle_id,flag > which represents the vehicle who’s id is vehicle_id will perform or not service migration at the RSU level while the flag is true or false
setMigration	The service migration set {rsuMigration, mscnMigration}
get_strategy (pif, cset)	Obtain the optimal strategy according to Algorithm 1 with variable pif and variable Cset