IoT-B&B: Edge-Based NFV for IoT Devices with CPE Crowdsourcing

Algorithm 2

IoT-B&B cost estimation algorithm.

    function  CLOUDCOST

     cpu_left    

     memory_left    

     link_bw_left    

     cost    

     for all    do

      cpu_left    cpu_left  −  

      memory_left    memory_left  −  

      link_bw_left    link_bw_left  −  

      end for

      cost    cost  +  cpu_left

      cost    cost  +  memory_left

      cost    cost  +  link_bw_left

      return  cost

  end function

  function  BNBCOST

     cost    

     if  user of does not own   then

      cost    cost  +  

      cost    cost  +  

      cost    cost  +  

      cost    cost  ×  

     end if

     return  cost

  end function