International Journal of Scientific Engineering and Research (IJSER)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed | ISSN: 2347-3878


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China | Computer Engineering | Volume 10 Issue 6, June 2022 | Pages: 17 - 23


A Network Packet Loss and Congestion Control Method using Utility Function Objective Optimization Model

Yun Ju, Yunhao Hu

Abstract: To solve the congestion control algorithm of a dynamic network difficult to determine the appropriate size of the congestion window problem. To improve the traditional congestion control algorithm of the UDP black-box model, the packet loss behavior that is not congested or caused by congestion is distinguished. Optimizing the traditional PCC black-box model based on utility function, and improved PCC-DRL optimization algorithm based on the PCC method were proposed. Compared with the existing mainstream congestion control algorithm, the comparison results show that the application of THE PCC-DRL optimization algorithm improves the dynamic network bandwidth utilization rate 9.67%, reduces the packet loss rate 0.24%, reduces the delay 5.69ms, and improves the queue concurrency 6.73%. These results indicate that THE PCC-DRL algorithm has a good effect on distinguishing the packet loss behaviors caused by non-congestion or congestion in dynamic networks, and has good adaptability and robustness to dynamic conditions and congestion forms.

Keywords: Utility functions, Deep reinforcement learning, PCC, Congestion control



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