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Transactions on Emerging Telecommunications Technologies
Article . 2020 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
DBLP
Article . 2025
Data sources: DBLP
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Virtual network embedding on massive substrate networks

Authors: Chenggui Zhao; Behrooz Parhami;

Virtual network embedding on massive substrate networks

Abstract

AbstractTo alleviate the computational burden of previous virtual network embedding (VNE) approaches when the resource network scales up significantly, we propose an efficient node ranking strategy that considers both global and local topological characteristics of the substrate network in mapping virtual nodes to physical nodes. This method ranks the substrate network nodes in two stages. First, all nodes are ranked globally with respect to the stationary distribution of the entire network. Then, a connected subset of the ranked substrate nodes, forming the H‐admissible embedding subgraph, is extracted. Finally, the subgraph nodes are ranked according to a local node ranking vector derived from a random‐walking scheme. The local rank vector is resolved using discrete Green's function satisfying the Dirichelet boundary condition. The more accurate association of node demands and resources that our proposed method provides leads to both better acceptance ratio and lower computational overhead. These claims have been justified via theoretical and algorithmic presentation of our scheme and offer experimental results obtained through simulation, to confirm its execution efficiency and solution quality compared with a couple of previous VNE proposals.

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
bronze