Computer Science ›› 2014, Vol. 41 ›› Issue (5): 102-106.doi: 10.11896/j.issn.1002-137X.2014.05.022

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Research on QoE-based Bandwidth Allocation Mechanism for VoIP

YANG Qiu-ling,JIN Zhi-gang and HUANG Xiang-dang   

  • Online:2018-11-14 Published:2018-11-14

Abstract: This paper used the Proportional Integrative Derivative (PID) control theory to allow a controlled trade-off between the bandwidth requirement of the VoIP data stream and its Quality of user Experience (QoE),then quantifying the perception in the bandwidth reallocation model,proposed a QoE-based bandwidth allocation mechanism for VoIP(QBAV),which maximizes the fairness between users while targeting the expected QoE.This paper proved the global optimum of the algorithm.The simulation shows that the proposed algorithm can meet about 90% of users,comparing with the NRG algorithm and the latest FC-MDI-S algorithm,and the bandwidth cuts down 9% and 15% respectively.The existing algorithms rely on minor high priority data streams.Avoiding this problem,the proposed algorithm enhances the overall performance of VoIP and the network efficiency.

Key words: Bandwidth allocation mechanism,QoE,VoIP,PID

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