OPERATIONAL RELIABILITY OF KUIAMA SATELLITE EARTH STATION (1989-1995)
OPERATIONAL RELIABILITY OF KUIAMA SATELLITE EARTH STATION (1989-1995)
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Date
1996-10
Authors
ABDULLAHl, SAIDU GOREBE
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Abstract
The strategic status of Kujama Barth Station (KES) as the only international gateway in
Northern part of Nigeria cannot be over emphasised, as any failure will result in interruption of
communications, but also the partial isolation of a large part of the country from the "Global
Village".
This thesis is concerned with the assessment of operational reliability of KES. Since
reliability studies lean heavily on probabilty theorems, a compendium of relevant probability
theorems were presented.
Outage data for KES were obtained and the operation of the earth station was
modelled as a discrete state, continuous-time Markov process. Based on this model, a structured
computer program was developed in Turbo Pascal and reliability parameters of the entire KES
system and its major sub-systems were generated from the program for the period 1989 to 1995.
The results obtained were discussed and observations were made on operational
reliability. The results were also persented in tabular forms and graphs, which establish the
chronological trends in operational reliability of KES over the period under study. The optimum
availability occurred in 1993 and the lowest availability in 1995.
Based on these observations and the conclusions arrived at, recommendations were
presented including the failure event and action form suggested by the author.
It is hoped that the adoption of these recommendatios will help to improve the
operational reliability of KES and ensure corporate perpetuity of NITEL Plc.
Description
A THESIS PRESENTED TO THE POSTGRADUATE SCHOOL OF THE
AHMADU BELLO UNIVERSITY, ZARIA, IN PARTIAL FULFILLMENT OF THE
REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE (M.sc.)
(ELECTRONICS AND TELECOMMUNICATIONS ENGINEERING).
OCTOBER, 1996
Keywords
OPERATIONAL,, RELIABILITY,, KUIAMA,, SATELLITE,, EARTH,, STATION.