Quality improving of internet telephony voice based on E-model adaptive algorithms

作     者：Cai, Bin Wang, Bin Si, Bin 

作者机构：College of Information Science and Engineering Wuhan University of Science and Technology Wuhan 430081 Hubei China Co Ltd Shanghai 201100 China 

出 版 物：《EEA - Electrotehnica, Electronica, Automatica》 (Electrotec. Electron. Autom.)

年 卷 期：2013年第61卷第4期

页      面：68-77页

核心收录：

主　　题：Adaptive algorithms 

摘      要：Voice service is one of today s most important communication network services. The E-model standardized by ITU-T offers the rating factor R. The R-value is used to detect and assess the speech quality. Two algorithms are used - packet dropping and ACK pacing. This paper improves the two algorithms for improvement of the VoIP QoS (Quality of Service). The simulations use Web traffic, FTP traffic, and Bit Torrent traffic as the background traffic. The simulator NS-2 is used to accomplish our work. Simulation results indicate that the voice quality of VoIP in ADSL access network has been improved effectively by the proposed adaptive algorithm.