Adaptive playout scheduling for VoIP using k-Erlang Distribution
2010 (English)In: Proceedings of the 18th European Signal Processing Conference (EUSIPCO), EUROPEAN ASSOC SIGNAL SPEECH & IMAGE PROCESSING-EURASIP , 2010, 1494-1498 p.Conference paper (Refereed)
We propose a new adaptive playout scheme for VoIP. The k- Erlang distribution is introduced to model the packet interarrival time distribution. A cost function is proposed for the next played out packet in the buffer based on modelling packet-arrival times with the k-Erlang distribution. The cost function essentially balances the average buffering delay and the packet-loss rate. The optimal playout length of the packet is determined by minimizing the cost function and realized by either inserting or dropping pitch cycles from the packet. Our real-world data experiments show that our scheme outperforms two reference methods for both low-jitter and highjitter cases.
Place, publisher, year, edition, pages
EUROPEAN ASSOC SIGNAL SPEECH & IMAGE PROCESSING-EURASIP , 2010. 1494-1498 p.
, European Signal Processing Conference, ISSN 2219-5491
Adaptive playout scheduling, Buffering delay, Erlang distribution, Inter-arrival time, Real world data, Reference method
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105545ISI: 000349999100303ScopusID: 2-s2.0-84860136994OAI: oai:DiVA.org:kth-105545DiVA: diva2:571387
18th European Signal Processing Conference, EUSIPCO 2010, Aalborg, Denmark, 23 August 2010 through 27 August 2010
QC 201305282012-11-222012-11-222015-12-07Bibliographically approved