energy-aware and reliable service placement of iot applications on fog computing platforms by utilizing whale optimization algorithm

Fog computing is known as a new computing technology where it covers cloud computing shortcomings in term of delay. this is a potential for running iot applications containing multiple services taking benefit of closeness to fog nodes near to devices where the data are sensed. this article formulates service placement issue into an optimization problem with total power consumption minimization inclination. it considers resource utilization and traffic transmission between different services as two prominent factors of power consumption, once they are placed on different fog nodes. on the other hand, placing all of the services on the single fog node owing to power reduction reduces system reliability because of one point of failure phenomenon. in the proposed optimization model, reliability limitations are considered as constraints of stated problem. to solve this combinatorial problem, an energy-aware reliable service placement algorithm based on whale optimization algorithm (er-spa-woa) is proposed. the suggested algorithm was validated in different circumstances. the results reported from simulations prove the dominance of proposed algorithm in comparison with counterpart state-of-the-arts.