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Advances, Systems and Applications

Journal of Cloud Computing Cover Image

Table 1 Definitions of symbols used in algorithms 1, 2 and 3

From: Near real-time optimization of fog service placement for responsive edge computing

SymbolDefinition
Eall edge nodes in the service topology
Fall fog nodes in the swirl
Exan edge node in the service topology
|E|the number of items in E
Fxa fog node in the service topology
|F|the number of items in F
ean edge node without a service provider
F(e)fog nodes ordered by distance from e
E(Fx)edge nodes serviced by Fx
Aset of active fog nodes
De,fdistance between edge node e and fog node f
Dedistances of edge node e to all fog nodes
da distance according to the chosen metric
dmaxmaximum distance between an edge node and fog node
Rx,fcurrent level of resource x on fog node f
RLx,flimit for resource x on fog node f
LLx,flower limit for resource x on fog node f
RDxdefault resource x increase for a service client