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A Trusted NUMFabric Algorithm for Congestion Price Calculation at the Internet-of-Things Datacenter

Shan Chun1, Xiaolong Chen2, Guoqiang Deng3,*, Hao Liu4

1 School of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou, 510665, China
2 Information Engineering College, Jinhua Polytechnic, Jinhua, 32100, China
3 The Information Network Engineering and Research Center, South China University of Technology, Guangzhou, 510641, China
4 Qianxin Technology Group Co., Ltd., Beijing, 100044, China

* Corresponding Author: Guoqiang Deng. Email:

(This article belongs to this Special Issue: Intelligent Models for Security and Resilience in Cyber Physical Systems)

Computer Modeling in Engineering & Sciences 2021, 126(3), 1203-1216.


The important issues of network TCP congestion control are how to compute the link price according to the link status and regulate the data sending rate based on link congestion pricing feedback information. However, it is difficult to predict the congestion state of the link-end accurately at the source. In this paper, we presented an improved NUMFabric algorithm for calculating the overall congestion price. In the proposed scheme, the whole network structure had been obtained by the central control server in the Software Defined Network, and a kind of dual-hierarchy algorithm for calculating overall network congestion price had been demonstrated. In this scheme, the first hierarchy algorithm was set up in a central control server like Opendaylight and the guiding parameter B is obtained based on the intelligent data of global link state information. Based on the historical data, the congestion state of the network and the guiding parameter B is accurately predicted by the machine learning algorithm. The second hierarchy algorithm was installed in the Openflow link and the link price was calculated based on guiding parameter B given by the first algorithm. We evaluate this evolved NUMFabric algorithm in NS3, which demonstrated that the proposed NUMFabric algorithm could efficiently increase the link bandwidth utilization of cloud computing IoT datacenters.


Cite This Article

Chun, S., Chen, X., Deng, G., Liu, H. (2021). A Trusted NUMFabric Algorithm for Congestion Price Calculation at the Internet-of-Things Datacenter. CMES-Computer Modeling in Engineering & Sciences, 126(3), 1203–1216.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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