Edge Server Placement for Service Offloading in Internet of Things

Algorithm 4

Summary of EPMOSO method.

	Inputs: Sensor collection S, Edge server collection ES, Number of iterations T, Variable t
	Output: Determined final edge server layout strategy
(1)	Randomly set the location of the edge server and initialize the chromosome
(2)	Initialize the velocity of each gene of each chromosome
(3)	for t = 0 to T do
(4)	Execute GA algorithm according to Algorithm 2
(5)	Execute PSO algorithm according to Algorithm 3
(6)	end for
(7)	Compute the utility value of K chromosomes
(8)	Use SAW algorithm to determine the final edge server layout strategy
(9)	return Best Edge Server Layout Strategy