Summary
Asia-Pacific Conference on Communications
2015
Session Number:16-AM2-D
Session:
Number:16-AM2-D-4
Simple MOS Estimation Model for Skype Referring to Packet Loss Effects: Development Using Conversation-like Tests
Montri Rungruangthum, Pongpisit Wuttidittachotti, Therdpong Daengsi,
pp.503-507
Publication Date:2015/10/14
Online ISSN:2188-5079
DOI:10.34385/proc.28.16-AM2-D-4
Summary:
This paper proposed a simple mathematical model that can be used to estimate VoIP quality, called mean opinion score (MOS), provided by Skype. This model had been developed using the data from the informal interview tests, called conversation-like tests, referring to packet loss of 0%, 5%, 10%, 15%, 20% and 25%. The data were gathered from 144 subjects, who participated in the tests. After using curve fitting technique and analysis, the 2nd polynomial equation was selected as the representative of the simple model that is one contribution of this work. After evaluating with the test set of 32 subjects obtaining from packet loss of 0%, 15% and 25%, this selected model shows Mean Absolute Percent Error (MAPE) of 11.97% which means it is a good and simple MOS model for Skype.