A Novel Hybrid Optimization Algorithm for Scalable Video Coding in an SDN

Algorithm 1

The novel hybrid optimization algorithm for scalable video coding.

	Input: Link_States, Pc, Pm, M, G
	Output: Action
	Initialize: Action = [0, 0]
	//The first dimension represents the number of layers, and the second dimension represents the path.
	Random generate Pop1 of M individual
	do {
	Calculate f (z) based on equation (5) for all in Pop1;
	Generate Pop2 of zero population;
	Add best two individuals into Pop2;
	do {
	Selection;
	if (random (0, 1) < Pc) Crossover;
	if (random (0, 1) < Pm) Mutation;
	Add new individuals into Pop2;
	} until (population of Pop2 = = M)
	Pop1 = Pop2;
	} until (best f (z) keep unchanged for 5 times or iteration num > G)
	if (best individual != [0, 0])
	return Action = best individual;
	else
	return Action = [z, 0];