Dear all,

We are submitting a paper “Method for Dynamic Service Orchestration in the Fog Computing” to the journal Electronics MDPI. The paper’s abstract is below. If accepted we will acknowledge SPARTA.

The authors are Nerijus Morkevičius, Algimantas Venčkauskas, Nerijus Šatkauskas and Jevgenijus Toldinas.

All the best,

Algimantas Venčkauskas

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Abstract: Fog computing is meant to deal with the problems which Cloud computing cannot solve alone. As the Fog is closer to a user, it can improve some very important QoS characteristics, such as latency and availability. One of the challenges in Fog architecture is heterogeneous constrained devices and dynamic nature of the Edge layer, which requires a dynamic service orchestration providing efficient service placement inside Fog nodes. An optimization method is needed to ensure the required level of QoS while requiring minimal resources from Fog and Edge devices, thus ensuring the longest lifecycle of the whole IoT system. A two-stage multi-objective optimization method for finding best placement of the services among available Fog nodes is presented in this paper. A Pareto set of non-dominated possible service distributions is found using the Integer Multi-Objective Particle Swarm Optimization method. Then the Analytical Hierarchy Process is used to choose the best service distribution according to the application specific judgment matrix. Illustrative scenario with experimental results is presented to demonstrate the characteristics of proposed method.