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

Algorithm 4

Determining the allocation strategy.

Input:

(1) ,      // rate of arrival

(2)     // rate of service

(3) SLA₁, SLA₂

(4)     // processing time expectation

Output:

(5) SA, RA //shared and reserved allocation strategy

(6) Function determineAllocStrategy (, , SLA₁, SLA₂, , )

(7) Calculate SLA difference

(8) Get the corresponding angle α from the SLA difference table

(9) If () &&  )

(10) If ()

(11) Return RA // reserved allocation

(12) Else

(13) Return SA // shared allocation

(14) Else

(15) Return false