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Analysis of Quality of Experience by applying Fuzzy logic - A study on response time

Blekinge Tekniska Högskola/COM
Publication Date
  • Telekommunikation
  • Telecommunications
  • Mathematics - Analysis
  • Datavetenskap
  • Computer Science - Networks And Communications
  • Quality Of Experience (Qoe)
  • Fuzzy Set Theory
  • Fuzzy C-Means Clustering (Fcm)
  • Fuzzified Opinion Score (Fos)
  • Linguistics
  • Mathematics


To be successful in today's competitive market, service providers should look at user's satisfaction as a critical key. In order to gain a better understanding of customers' expectations, a proper evaluations which considers intrinsic characteristics of perceived quality of service is needed. Due to the subjective nature of quality, the vagueness of human judgment and the uncertainty about the degree of users' linguistic satisfaction, fuzziness is associated with quality of experience. Considering the capability of Fuzzy logic in dealing with imprecision and qualitative knowledge, it would be wise to apply it as a powerful mathematical tool for analyzing the quality of experience (QoE). This thesis proposes a fuzzy procedure to evaluate the quality of experience. In our proposed methodology, we provide a fuzzy relationship between QoE and Quality of Service (QoS) parameters. To identify this fuzzy relationship a new term called Fuzzied Opinion Score (FOS) representing a fuzzy quality scale is introduced. A fuzzy data mining method is applied to construct the required number of fuzzy sets. Then, the appropriate membership functions describing fuzzy sets are modeled and compared with each other. The proposed methodology will assist service providers for better decision-making and resource management.

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