Node splitting for improved virtual network embedding: A feasibility study

Jihun Ha, Yongtae Park, Byungjo Kim, Eunah Kim, Sunhee Yang, Hyogon Kim

Research output: Contribution to journalArticlepeer-review


When the residual resources on a virtualized substrate network (SN) are insufficient to meet the resource demands from the requested virtual network (VN) at specific locations, we can attempt to accommodate the VN by allocating resources at alternative locations and transparently serve the accesses to the VN by having them internally rerouted to the actually allocated locations. In this letter, we explore the feasibility of nodal resource splitting in such alternative allocation scenarios. We find that in order to facilitate such alternative allocations, we should first define the node-link resource dependencies. Once the dependencies are given, we demonstrate that the splitting can visibly improve the SN utilization and the request rejection rate for VN embedding requests under many network scenarios.

Original languageEnglish
Pages (from-to)2463-2466
Number of pages4
JournalIEICE Transactions on Communications
Issue number7
Publication statusPublished - 2012 Jul


  • Embedding performance
  • Network virtualization
  • Node resources
  • Resource splitting

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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