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GLOBECOM
2009
IEEE

Priority Based Dynamic Rate Control for VoIP Traffic

9 years 3 months ago
Priority Based Dynamic Rate Control for VoIP Traffic
This paper presents a novel mechanism for dynamic rate control of prioritised Voice Over IP (VoIP) traffic in real time. The system uses our proposed variable bit rate speech codec called Speex, which can dynamically adjust the encoding bit rate (and hence the voice quality) based on the feedback information about the network congestion, flow priority, and the instantaneous speech properties. Our extensive NS2 simulation results along with results from ITU-T standard of speech quality evaluation tool (PESQ) show that the proposed system indeed provides highest quality speech while maximising the bandwidth utilisation and reducing the network congestion.
Fariza Sabrina, Jean-Marc Valin
Added 16 Aug 2010
Updated 16 Aug 2010
Type Conference
Year 2009
Where GLOBECOM
Authors Fariza Sabrina, Jean-Marc Valin
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