Adaptive VoIP Service QoS Control based on Perceptual Speech Quality

Author

Huang, Liang-Yi ; Chen, Yung-Mu ; Chung, Tein-Yaw ; Hsu, Chih-Hung

Author_Institution

Dept. of Comput. Sci. & Eng., Yuan Ze Univ.

Volume

2

fYear

2007

fDate

12-14 Feb. 2007

Firstpage

885

Lastpage

890

Abstract

Integrated environment of wireless network can provide a ubiquitous and continuous communication for voice over Internet protocol (VoIP) service. However, the major problems, which VoIP performs over wireless networks, are varying delay of each packet, high packet loss rate and handoff. This paper proposed an adaptive QoS playout (AQP) algorithm to offer a high quality wireless VoIP service. AQP integrates the effect of dejitter buffer control, retransmission, and handoff delay based on the E-model. Simulation results show that AQP can reduce the lateness loss rate and improve speech quality under high frame error rate when the wireless link has small end-to-end network delay and also performs well when a handoff occurs.

Keywords

Internet telephony; error statistics; quality of service; radio networks; transport protocols; E-model; adaptive QoS playout algorithm; adaptive VoIP service QoS control; continuous communication; dejitter buffer control; end-to-end network delay; frame error rate; handoff delay; perceptual speech quality; ubiquitous communication; voice over Internet protocol service; wireless link; wireless network; Adaptive control; Communication system control; Delay effects; Internet telephony; Jitter; Programmable control; Quality of service; Speech; Streaming media; Wireless networks; E-model; VoIP; dejitter buffer; retransmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, The 9th International Conference on

Conference_Location

Gangwon-Do

ISSN

1738-9445

Print_ISBN

978-89-5519-131-8

Type

conf

DOI

10.1109/ICACT.2007.358502

Filename

4195303