Title :
Switching between fixed and call-adaptive playout: a per-call playout algorithm
Author :
Jung, Younchan ; Atwood, J. William
Author_Institution :
Inf. & Commun. Eng., Catholic Univ. of Korea, South Korea
Abstract :
Adaptive playout algorithms provide a popular way to calculate voice-over-IP (VoIP) packets´ playout delay - the difference between the playout time at the receiver and the packet-generation time at the sender. The authors´ proposed per-call adaptive algorithm uses network delays received from the VoIP gatekeeper to switch between fixed and call-adaptive playout. Their approach also reduces loss rates while increasing playout delay only slightly.
Keywords :
Internet telephony; delays; packet switching; adaptive playout algorithm; call-adaptive playout; network delay; packet-generation time; per-call playout algorithm; voice-over-IP; Adaptive algorithm; Degradation; Delay effects; Delay estimation; IP networks; Internet telephony; Jitter; Packet switching; Performance loss; Switches; Delay measurements; Gatekeeper; Lateness loss; Per-call basis playout; Per-talkspurt adaptive playout; Playout delay; VoIP phone;
Journal_Title :
Internet Computing, IEEE
DOI :
10.1109/MIC.2005.88
