Evaluation Of Qoe For Fixed Wire-line Broadband Data Service In The Case Of Addis Ababa Enterprise Customers Ethiopia

Telecom operators should monitor the satisfaction level of their customers and the quality ofrntheir networks to take on-time network optimization, redesign and marketing, in general effectivernresource allocation decisions. Therefore, it is necessary to evaluate the impact of fixed wire-linernbroadband performances on the customers’ experience. QoE is an emerging technology, it hasrnbecome an increasing research area. In this thesis, QoE is evaluated with objective and subjectivernmethods. Most of earlier studies used subjective method to evaluate QoE, but the evaluation wernused a combination of objective and subjective methods which give more realistic results.rnMoreover, the nobility of this thesis to the best of my knowledge is a unique combination ofrnnetwork quality metrics. It is based on download, upload speed and latency of QoE objectivernmetrics which are collected from the customers’ end devices, using Testmy.net, ping-test.netrntools. Furthermore, we formulate a survey questionnaire to evaluate user MOS. rnThe evaluation result indicates user perception is not satisfactory during on-peak hours withrnMOS value of 2.88. Whereas the satisfaction of customers during off-peak hours is good withrnMOS value of 3.90. On the other hand, the objective fuzzy logic QoE output indicates 4.0 at offpeakrnhoursrnandrn2.67rnon-peakrnhours.rnTornsummarize,rnoff-peakrnhour’srnsatisfactionrnresultrnisrngoodrnrn(greaterrnthanrn3.5)rnandrnon-peakrnhour’srnsatisfactionrnneedsrnattentionrntornimprovernthernexperiencernsincernrnourrnresult shows lessrnthan thernbenchmarkrnvaluernofrnquality ofrnexperiencern3.5.rnrnAccording to our analysis, the main problem is latency which does not fulfil ITU benchmark,rnbut the upload and download speed fulfil Ofcom recommendation. The recommended solutionrnto reduce latency especially during on-peak period is to implement a proxy cache server. Thisrnsolution leads to reduce traffic volume more than 50% of inter-domain link, saves bandwidthrnof inter-domain link and handles more traffic without upgrading uplink capacity.

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