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Author:

Chen, Tianjiao (Chen, Tianjiao.) | Liu, Jiang (Liu, Jiang.) | Tang, Qinqin (Tang, Qinqin.) | Huang, Tao (Huang, Tao.) | Huo, Ru (Huo, Ru.)

Indexed by:

EI Scopus SCIE

Abstract:

Network virtualization allows multiple isolated virtual networks (VNs) to share the same substrate network (SN). VN embedding (VNE) algorithms can efficiently allocate the limited SN resources to VNs and assign a unique identifier to each VN. However, the fixed bit width of VN identifier in the packet header limits the number of VNs, and extending the bit width leads to the increase of the network traffic. In this paper, we consider the label-combination method to generate VN identifiers by combining the link-grained labels with location information. This method requires the efficient allocation of labels, but the existing VN embedding works only consider the CPU and bandwidth resources. To address this issue, we propose a novel embedding model that considers the label, CPU and bandwidth resource constraints. Furthermore, two window-based heuristic algorithms called VNE-LIA and VNE-iLIA using the greedy algorithm and the proximity principle are presented to solve the VNE problem. The simulation experiments show that our proposed algorithms increase the number of VN identifiers and the revenue to cost ratio under the different resource conditions of SN.

Keyword:

resource allocation virtual network identifier Virtual network embedding network virtualization online algorithm

Author Community:

  • [ 1 ] [Chen, Tianjiao]Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
  • [ 2 ] [Liu, Jiang]Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
  • [ 3 ] [Tang, Qinqin]Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
  • [ 4 ] [Huang, Tao]Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
  • [ 5 ] [Liu, Jiang]Beijing Univ Technol, Beijing Adv Innovat Ctr Future Internet Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Huang, Tao]Beijing Univ Technol, Beijing Adv Innovat Ctr Future Internet Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Huo, Ru]Beijing Univ Technol, Beijing Adv Innovat Ctr Future Internet Technol, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Liu, Jiang]Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China;;[Liu, Jiang]Beijing Univ Technol, Beijing Adv Innovat Ctr Future Internet Technol, Beijing 100124, Peoples R China

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Source :

IEEE ACCESS

ISSN: 2169-3536

Year: 2019

Volume: 7

Page: 31159-31169

3 . 9 0 0

JCR@2022

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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