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Wireless virtual network embedding algorithm based on load balance
Qi GAO, Na LYU, Jingcheng MIAO
Journal of Computer Applications    2022, 42 (10): 3148-3153.   DOI: 10.11772/j.issn.1001-9081.2022010043
Abstract338)   HTML10)    PDF (1736KB)(62)       Save

To address the rigid problem of network, NV (Network Virtualization) is widely used, and the key technology of NV is VNE (Virtual Network Embedding). To solve the problem of unbalanced power and bandwidth resource usage in the process of wireless VNE, a joint hierarchical resource wireless VNE algorithm was proposed based on the load balance principle. Firstly, a new node resource ranking method was adopted, which taking node power and average link bandwidth as the ranking basis. Secondly, the resources were ranked to dynamically adjust the power and bandwidth demanded by virtual network requests. Finally, the unit cost of power and bandwidth resources was improved, and the resource allocation scheme was selected with cost minimization as the objective function. Compared with the original wireless VNE algorithm WVNE-JBP (Wireless Virtual Network Embedding-Joint Bandwidth and Power), the proposed algorithm has the overall acceptance rate increased by 11.7 percentage points, the average power resource utilization increased by 4.4 percentage points and the average bandwidth resource utilization increased by 1.6 percentage points. Experimental results show that the proposed algorithm can effectively improve the virtual network acceptance rate and resource utilization.

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