Efficient Priority Access to the Shared Commercial Radio with Offloading for Public Safety in LTE Heterogeneous Networks

Algorithm 3

Preemption function.

Function 1: Pre-emption()

LP = lowest priority in

BS() = ActifBearers(LP)

= RadioQ(BS())

WHILE   && LP < Priority_NB

IF   ActifBearers(LP) && VP(ActifBearers) = +1

  = RadioQ(BS())

 BS() = ActifBearers(LP)

 LP = Next lowest priority in

END

END WHILE

IF  

 RR_gained = 0

 FOR   < Length(BS) && RR_gained < RR_req

 Preempt BS()

 RR_gained = RR_gained +

 ENDFOR

 New Bearer is Accepted

ELSE

 New Bearer Blocked

ENDIF