[Retracted] Finder-MCTS: A Cognitive Spectrum Allocation Based on Traveling State Priority and Scenario Simulation in IoV

Algorithm 2

Finder-MCTS.

Input:

Output:

 optimal channel allocation matrix

 Function Finder-MCTS

1: load network

2: create root node with state

3: create channel allocation buffer

4: while node is a terminal node do

5:  initialize a matrix with all elements equaling to 0

6:  

7:  

8:  if for vehicle then

9:   =1

10:  else

11:   =0

12:  end if

13:  update and put in

14:  

15: end while

16: return

17: while is nonterminal do

18:  if is not a leaf node then

19:   

20:   

21:  else

22:   ifthen

23:    

24:   else

25:    

26:   end if

27:  end if

28: end while

29: return

30: execute

31: choose randomly

32: generate a new child of node

33: initialize

34: 

35: 

36: initialize ,=0

37: while is not a terminal node do

38:  choose randomly

39:  ,

40:  calculate according to Eq. (2)

41:   ( is calculated based on Eq. (17), (18), (19))

42:  

43: end while

44: return when node reaching to the terminal node

45: while node is not null do

46:  

47:  

48:end while