An Architecture of IoT Service Delegation and Resource Allocation Based on Collaboration between Fog and Cloud Computing

Algorithm 3

Determining the number of VMs.

Input:

(1)        // rate of arrival

(2)        // rate of service

(3)     // : time of response

        // : probability target

Output:       // required minimum no. of VMs

(4) Float

(5) Function determineMinVM (, , , )

(6) If   σ    σ;

(7) Else ;

(8) While   ≤  , ++;

(9) Return ; // required minimum no. of VMs