By Topic

Time-varying quality estimation for VoIP over Wireless Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Picovici, D. ; Dept. of Electron. & Comput. Eng., Univ. of Limerick, Limerick ; Nelson, J.

Time-varying distortions are perceived as being different from stationary distortions. In terms of wireless networks the most possible time-varying distortions are based on packet loss. Such distortions degrade the VoIP quality and are directly linked to the packet-based transmission techniques. This paper proposes a new mathematical model for time-varying VoIP quality estimation. The model is extending the ITU-T legacy E-model in order to count for the perceptual relevance of the packet loss distortions. Evaluation results for VoIP over IEEE 802.11 wireless networks indicate that the proposed model outperforms the ITU-T legacy E-model and ITU-T PESQ for the investigated testing conditions.

Published in:

Mobile Wireless Communications Networks, 2007 9th IFIP International Conference on

Date of Conference:

19-21 Sept. 2007