Issue Number: Vol. 6, No. 4
Year of Publication: Oct - 2016
Page Numbers: 241-259
Authors: Demóstenes Z. Rodriguez, Renata L. Rosa, Rodrigo D. Nunes, Emmanuel T. Affonso
Journal Name: International Journal of Digital Information and Wireless Communications (IJDIWC)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P002149


In recent years, the number of researches in Quality-ofExperience (QoE) is increasing because this concept is used in several areas. In telecommunication services, the subscriber loyalty depends on the user’s QoE level. Thus, service providers need to know the real users’ QoE to improve their services offered. In this arena, the study of methods to assess QoE is very important. In this paper is shown the different approaches that compose the QoE concept, from technology, social and human aspects, differentiating it from others well known concepts such as, Quality of Service (QoS) and User Experience (UX). In order to assess user’s QoE, subjective tests need to be conducted, and based on their results mathematical models are formulated to establish quality metrics. In this document, two case studies are presented. Firstly, the video streaming service is analyzed, in which the user’s QoE is modeled considering the pauses as a degradation factors obtaining a video quality metric. As a second case study, a research regarding voice quality is presented, in which the voice calls in a cellular network are assessed.