Column Generation Based Algorithm for Service Chaining Relaxing Visit Order and Routing Constraints

Takehiro Sato, Atsushi Kikuchi, Ryoichi Shinkuma, Eiji Oki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Service chaining is a method for providing desired network services to users by concatenating virtualized network functions (VNFs) in the network. There have been studies on service chain provisioning models that relax the visit order of VNFs and routing constraints. These models make it difficult to obtain an optimal solution in a practical time due to the huge number of decision variables associated with the problem. A heuristic approach that obtains a nearly-optimal solution within a practical time is needed. This paper proposes a column generation based heuristic algorithm for the service chain provisioning problem that relaxes the VNF visit order and routing constraints. The proposed algorithm divides the problem into a VNF placement problem and a routing problem and applies the column generation technique to solve the latter. Numerical results show that the proposed algorithm shortens the computation time compared to directly solving the original integer linear programming problem in exchange for some increase in the cost for VNF placement and link utilization.

Original languageEnglish
Title of host publication2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728182988
DOIs
Publication statusPublished - 2020 Dec
Externally publishedYes
Event2020 IEEE Global Communications Conference, GLOBECOM 2020 - Virtual, Taipei, Taiwan, Province of China
Duration: 2020 Dec 72020 Dec 11

Publication series

Name2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
Volume2020-January

Conference

Conference2020 IEEE Global Communications Conference, GLOBECOM 2020
Country/TerritoryTaiwan, Province of China
CityVirtual, Taipei
Period20/12/720/12/11

Keywords

  • column generation
  • integer linear programming
  • network function virtualization
  • service chaining

ASJC Scopus subject areas

  • Media Technology
  • Modelling and Simulation
  • Instrumentation
  • Artificial Intelligence
  • Computer Networks and Communications
  • Hardware and Architecture
  • Software
  • Safety, Risk, Reliability and Quality

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