Evaluation of QoE for Fixed wire-line Broadband Data Service in the case of Addis Ababa Enterprise Customers Ethiopia
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Date
2020-02-26
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
Telecom operators should monitor the satisfaction level of their customers and the quality of
their networks to take on-time network optimization, redesign and marketing, in general effective
resource allocation decisions. Therefore, it is necessary to evaluate the impact of fixed wire-line
broadband performances on the customers’ experience. QoE is an emerging technology, it has
become an increasing research area. In this thesis, QoE is evaluated with objective and subjective
methods. Most of earlier studies used subjective method to evaluate QoE, but the evaluation we
used a combination of objective and subjective methods which give more realistic results.
Moreover, the nobility of this thesis to the best of my knowledge is a unique combination of
network quality metrics. It is based on download, upload speed and latency of QoE objective
metrics which are collected from the customers’ end devices, using Testmy.net, ping-test.net
tools. Furthermore, we formulate a survey questionnaire to evaluate user MOS.
The evaluation result indicates user perception is not satisfactory during on-peak hours with
MOS value of 2.88. Whereas the satisfaction of customers during off-peak hours is good with
MOS value of 3.90. On the other hand, the objective fuzzy logic QoE output indicates 4.0 at offpeak
hours
and
2.67
on-peak
hours.
To
summarize,
off-peak
hour’s
satisfaction
result
is
good
(greater
than
3.5)
and
on-peak
hour’s
satisfaction
needs
attention
to
improve
the
experience
since
our
result shows less
than the
benchmark
value
of
quality of
experience
3.5.
According to our analysis, the main problem is latency which does not fulfil ITU benchmark,
but the upload and download speed fulfil Ofcom recommendation. The recommended solution
to reduce latency especially during on-peak period is to implement a proxy cache server. This
solution leads to reduce traffic volume more than 50% of inter-domain link, saves bandwidth
of inter-domain link and handles more traffic without upgrading uplink capacity.
Description
Keywords
quality of service, quality of experience, fixed broadband, enterprise customer, download speed, upload speed, latency, mean opinion score fuzzy logic, quality metrics, subjective, objective