QoS evaluation based on extend E-Model in VoIP

Author

Zhang, Hongli ; Gu, Zhimin ; Tian, Zhenqing

Author_Institution

Sch. of Comput. Sci. & Technol., Beijing Inst. of Technol., Beijing, China

fYear

2011

fDate

13-16 Feb. 2011

Firstpage

852

Lastpage

854

Abstract

Voice over Internet Protocol (VoIP) is a technology that transports voice data packets across packet switched networks using the Internet Protocol (IP). The key research is to develop a new method for QoS determination and dynamic control of the network that is applicable to VoIP industry. The paper investigates the effects of packet loss, delay and jitter on speech quality for VoIP. It extends the coverage of the standard E-Model. This paper also compares the performances of the original and the modified E-models by applying them to an evaluation of conversational quality in practical VoIP systems (Skype, windows live messenger, Google Talk) for various delay, packet loss and jitter. The results show that the enhanced E-Model achieves good accuracy.

Keywords

Internet telephony; jitter; quality of service; E-model; Google Talk; QoS evaluation; Skype; VoIP; jitter; packet delay; packet loss; packet switched network; speech quality; voice data packet; voice over Internet protocol; windows live messenger; Codecs; Computational modeling; Delay; Google; Jitter; Quality of service; Speech; E-Model; QoS; VoIP;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology (ICACT), 2011 13th International Conference on

Conference_Location

Seoul

ISSN

1738-9445

Print_ISBN

978-1-4244-8830-8

Type

conf

Filename

5745943