Title :
Perceptual QoS assessment technologies for VoIP
Author :
Takahashi, Akira ; Yoshino, Hideaki ; Kitawaki, Nobuhiko
Author_Institution :
NTT Service Integration Labs., Japan
fDate :
7/1/2004 12:00:00 AM
Abstract :
Since quality is not generally guaranteed in an IP network, the proper design and management of networks and/or terminals for high-quality voice over IP services and maintenance of service levels is important. In terms of quality design and management, methodologies for appropriately and effectively evaluating the perceptual QoS of VoIP are indispensable. This article gives an overview of the state of the art of quality assessment technologies for VoIP, including recent work on improving their accuracy.
Keywords :
Internet telephony; computer network management; quality of service; QoS assessment technologies; VoIP service; high-quality voice over IP services; network management; quality design; quality of service; Circuit noise; IP networks; Internet telephony; Laboratories; Propagation losses; Pulse modulation; Quality assessment; Quality management; Quality of service; Technology management;
Journal_Title :
Communications Magazine, IEEE
DOI :
10.1109/MCOM.2004.1316526
