Title :
Effect of packet size and compression variation on quality of VoIP communications
Author :
Myakotnykh, Eugene S. ; Thompson, Richard A.
Author_Institution :
Centre for Quantifiable Quality of Service in Commun. Syst. (Q2S), Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
Dynamic change of speech encoding parameters is a way to manage the quality of VoIP communications in real-time in case of degradation due to congestion in the network. This paper investigates the effect of voice payload size and compression variation on VoIP quality under various network conditions. This must be known in order to choose the “correct” set of encoding parameters that match a given network state and to take a “correct action” to dynamically improve the quality of a VoIP communication session.
Keywords :
Internet telephony; speech coding; VoIP communications quality; compression variation; packet size; speech encoding parameters; voice payload size; Adaptation model; Codecs; Delay; Encoding; Jitter; Real time systems; Speech;
Conference_Titel :
Security and Communication Networks (IWSCN), 2009 Proceedings of the 1st International Workshop on
Conference_Location :
Trondheim
Print_ISBN :
978-1-61284-168-7
Electronic_ISBN :
978-82-997105-1-0
