Energy Efficient Multiresource Allocation of Virtual Machine Based on PSO in Cloud Data Center

Table 1

Parameters and the mean of parameters.

Parameters	Mean of parameters
𝑣^𝑡𝑖	Velocity of particle 𝑖 at iteration t
𝑥^𝑡𝑖	Position of particle 𝑖 at iteration t
𝑤	Inertia weight
𝑐1, 𝑐2	Acceleration coefficients
𝜓1, 𝜓2	Random number between 0 and 1
𝑝best𝑖	Best position of particle 𝑖
𝑔best	Best position of entire particles in a population