Congestion control strategy on complex network with privilege traffic

Shi-Bao Li, Ya He (), Jian-Hang Liu (), Zhi-Gang Zhang () and Jun-Wei Huang ()
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Shi-Bao Li: College of Computer and Communication Engineering, China University of Petroleum, (East China), Qingdao, Shandong, 266580, P. R. China
Ya He: College of Computer and Communication Engineering, China University of Petroleum, (East China), Qingdao, Shandong, 266580, P. R. China
Jian-Hang Liu: College of Computer and Communication Engineering, China University of Petroleum, (East China), Qingdao, Shandong, 266580, P. R. China
Zhi-Gang Zhang: College of Computer and Communication Engineering, China University of Petroleum, (East China), Qingdao, Shandong, 266580, P. R. China
Jun-Wei Huang: College of Computer and Communication Engineering, China University of Petroleum, (East China), Qingdao, Shandong, 266580, P. R. China

International Journal of Modern Physics C (IJMPC), 2017, vol. 28, issue 09, 1-15

Abstract: The congestion control of traffic is one of the most important studies in complex networks. In the previous congestion algorithms, all the network traffic is assumed to have the same priority, and the privilege of traffic is ignored. In this paper, a privilege and common traffic congestion control routing strategy (PCR) based on the different priority of traffic is proposed, which can be devised to cope with the different traffic congestion situations. We introduce the concept of privilege traffic in traffic dynamics for the first time and construct a new traffic model which taking into account requirements with different priorities. Besides, a new factor Ui is introduced by the theoretical derivation to characterize the interaction between different traffic routing selection, furthermore, Ui is related to the network throughput. Since the joint optimization among different kinds of traffic is accomplished by PCR, the maximum value of Ui can be significantly reduced and the network performance can be improved observably. The simulation results indicate that the network throughput with PCR has a better performance than the other strategies. Moreover, the network capacity is improved by 25% at least. Additionally, the network throughput is also influenced by privilege traffic number and traffic priority.

Keywords: Complex networks; congestion control; privilege traffic; privilege grade (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1142/S0129183117501170

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