Technical Risks Associated With Some Sudanese Telecommunications Networks And Proposed Solutions
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Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Al Neelain University
Abstract
As today‘s business world is dynamic and constantly changing, a p
lenty of surprises
and risks
taken into consideration appear suddenly, leading to block the implementation of
engineering pro
jects or may cause a total collapse.
The dissertation focuses on three main issues: 1) technical risks associated with telecom
transmission media. 2) multiple criteria and decision making, 3) cost and schedule risks
associated with telecom network.
This re
search highlights the use of the advantages of performing qualitative and
quantitative
analysis techniques as a methodology to provide better information to support
critical decisions. These methodologies help to evaluate and estimate the size of contingen
cy
reserves for the time and cost that would be appropriate for sta
keholders. The technique used
in the
risk assessment is focused on five main issues: 1) Root cause analysis method which
is a serious method of problem solving
.
2) Expected monetary value w
hich is a simple
calculation of a value such as expected cost target. 3) Decision tree analysis that is a
powerful utility for choosing an option from alternatives. 4) Analytical Hierarchy Process
(AHP) in order to make decision in complex problems. 5) Sim
ulation models such as
sensitivity analysis and Monte Carlo simulation in order to meet sufficient results in cost
estimation and schedules.
In the first scenario, a complete risk register is constructed involving risk
identification, risk triggering, risk
severity, risk analysis, risk response, and risk monitoring.
The second scenario represent
s
decision making in telecom companies to select the best
suitable and appropriate transmission
lines types
. Six criteria were identified such as
Installation cost,
capacity, Security, immunity to noise, issue of latency, and distance for
getting the best type of transmission lines among the three alternatives options such as fiber
optic, VSAT, and microwaves under consideration. The third scenario shows a simulation
-
based approach of assessing the risk and uncertainty involved in estimating the expected
earnings of a mobile communication company according to traffic intensity principle. The
procedure involves using of sensitivity analysis modeling, and spreadsheet sof
tware, such as
Excel, is a common tool for performing this model. This met
hod shows the influence of five
main factors influencing the effectiveness of trunking theory. This leads stakeholders to
avoid the risks associated to cost by taking attention to th
e five parameters related to mobile
traffic intensity such as number of users, number of calls, call duration, initial cost of call
duration, and price of call duration.
The research also provides some of the obstacles faced by teleco
mmunications
companies
such as the
problem of increase network capacity, in order to support many new
users. To complete this task, Monte Carlo simulation is applied. Monte Carlo is a
computerized mathematical technique that allows people to account for risk in quantitative
ana
lysis and decision making
.
The project‘s problem is divided into four jobs; Hardware
Installation, Software Configurations, Electrical wiring, and Civil Works. Based on prior
experience or other expert knowledge, risk manger can determine the best case, mo
st
-
likely,
and worst
-
case estimates for each of these activities
