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Adaptive Speech Quality Management in Voice-over-IP Communications

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2 Author(s)
Myakotnykh, E.S. ; Centre for Quantifiable Quality of Service in Commun. Syst. (Q2S), Norwegian Univ. of Sci. & Technol., Trondheim ; Thompson, R.A.

The quality of VoIP communication relies significantly on the network that transports voice packets because this network does not usually guarantee available bandwidth, delay, and loss that are critical for real-time voice traffic. The solution proposed here is to manage a voice-over-IP stream dynamically, changing encoding parameters as needed to assure quality. The paper proposes an adaptive-rate control algorithm that establishes interaction between a VoIP sender and a receiver, and manages voice quality in real-time. Simulations demonstrate that the system provides better average communications quality than traditional fixed-rate VoIP.

Published in:

Telecommunications, 2009. AICT '09. Fifth Advanced International Conference on

Date of Conference:

24-28 May 2009