1.2 PROBLEM STATEMENT
When you compare the fiber optic with other media (copper
cables, space media) which are often used in Rwanda especially at NUR for
signal transmission those media causes the problem of electromagnetic
interference, small bandwidth which affect the signal transmission
performance.
In addition fiber optic reduce the effect of electromagnetic
field radiation on human being which causes incurable illness(
e.g.cancer...).
1.3 INTEREST AND RELEVANCE OF THE CHOICE OF THE
TOPIC
Fiber optics has advantages in improving System efficient by
Greatly increasing bandwidth and capacity, improving safety and electrical
isolation ,reduced size and weight, environmental protection, Lower signal
attenuation (loss), Immunity to Electrical Noise (electromagnetic interference
and radio-frequency interference), No crosstalk ,Lower bit error rates,
Nonconductive (does not radiate signals), Resistant to radiation and corrosion
,Resistant to temperature variations.
Fiber optics network has contribute very much in improvement of
internet connections in Rwanda especially in National University of Rwanda.
1.4 RESEARCH HYPOTHESIS
This work will help the companies provider of networks in Rwanda
and the entire society to understand well the good benefits of using fiber
optic connection.
Our project also will be testing this hypothesis
> To evaluate the advantages or benefits that fiber optics has
contribute in telecommunication field in Rwanda focus will be put on NUR
Network.
1.5. RESEARCH METHODS
Four methods will be used during our research project:
> Observation methods: we will observe how the fiber optic is
implemented in NUR. > Library: books related to our topic will be
checked.
> Web browsing: it will help us to find more information.
> Documentation: We will use the books and notes relative
to the fiber optics transmission and same field will be done at National
University of Rwanda where that technology is in use and being implemented.
1.6 LIMITATION OF THE TOPIC
Our topic will focused on transmission using fiber optic and
theirs benefits.
1.7 STRUCTURE OF THE WORK
Besides conclusion and recommendations our work will include
Four chapters which have General introduction as the first chapter where
include the evolution of media cables technology fiber optic leading to
transmission improvement will be illustrated, the second chapter is titled as
optical fiber transmission this chapter we will deal with how optical fiber
transmit signal using light, Reflection and it will contain General Information
about the transmission media then comes The third chapter, The analysis of
fiber optic network in NUR where Special emphasis will be put on fiber optic
networks as passive and active link and its performance and evaluation and this
will guide us to the Fourth chapter titled Discussion and interpretation of the
results, we will analysis data collected on parameters used to test the
effectiveness of that technology and comparison will be made before fiber optic
implementation and in nowadays where has been implemented.
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