Title :
Network Characterization and Perceptual Evaluation of Skype Mobile Videos
Author :
Jana, S. ; Pande, Amit ; Chan, An Jack ; Mohapatra, Prasant
Author_Institution :
Univ. of California, Davis, Davis, CA, USA
fDate :
July 30 2013-Aug. 2 2013
Abstract :
We characterize the performance of both video and network layer properties of Skype, the most popular video telephony application. The performance in both mobile and stationary scenarios is investigated; considering network characteristics such as packet loss, propagation delay, available bandwidth and their effects on the perceptual video quality, measured using spatial and temporal no-reference video metrics. Based on 200+ live traces, we study the performance of this mobile video telephony application. We model video quality as a function of input network parameters and derive a feed-forward Artificial-Neural-Network that accurately predicts video quality given network conditions (0.0206 ≤ MSE ≤ 0.570). The accuracy of this model improves significantly by incorporating end-user mobility as an input to the model.
Keywords :
Internet telephony; mobile computing; neural nets; videotelephony; Skype mobile videos; available bandwidth; end-user mobility; feed-forward artificial-neural-network; input network parameters; live traces; mobile scenarios; mobile video telephony; network characterization; network layer properties; packet loss; perceptual evaluation; perceptual video quality; propagation delay; stationary scenarios; video layer properties; video metrics; Mobile communication; Packet loss; Quality assessment; Telephony; Video recording; Videos;
Conference_Titel :
Computer Communications and Networks (ICCCN), 2013 22nd International Conference on
Conference_Location :
Nassau
Print_ISBN :
978-1-4673-5774-6
DOI :
10.1109/ICCCN.2013.6614157
