A Load-Balanced Re-Embedding Scheme for Wireless Network Virtualization

Yun Li, Zhaoyang Zhang, Shichao Xia, Hsiao Hwa Chen

研究成果: Article同行評審

摘要

In wireless network virtualization processes, load imbalance in substrate nodes and substrate links may significantly reduce the number of virtual network requests served by a substrate network. In addition, load imbalance also impairs resource utilization and increases embedding cost of the virtual networks. To tackle these issues, this work proposes a re-embedding scheme for virtual node (RSVN). Based on the load condition of a substrate network, RSVN first determines whether to start re-embedding procedure or not, and then selects proper re-embedded virtual nodes according to their re-embedding factors. Next, RSVN re-embeds the selected virtual nodes to balance the loads of a wireless substrate network. The extensive simulation results showed that RSVN improves the acceptance ratio of virtual network requests, increases the resource utilization of substrate networks, and reduces the average embedding cost of the entire virtual networks.

原文English
文章編號9372899
頁(從 - 到)3761-3772
頁數12
期刊IEEE Transactions on Vehicular Technology
70
發行號4
DOIs
出版狀態Published - 2021 四月

All Science Journal Classification (ASJC) codes

  • 汽車工程
  • 航空工程
  • 電氣與電子工程
  • 應用數學

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