Enabling Device-to-Device (D2D) Communication for the Next Generation WLAN

Algorithm 1

The enhanced back-off mechanism

1: Initialize: Node set ,

2: AP computes by (11) and broadcasts it and

3: for in do:

4:    randomly select a value from as

5: end for

6: whiledo:

7:    fordo:

8:      

9:      ifdo:

10:         randomly choose a RU to send BSR

11:        if AP received BSR from do:

12:           and

13:        end if

14:        

15:      end if

16:    end for

17:    ifdo:

18:      break

19:    end if

20:    

21: end while