ABSTRACT FM bugger is a device which generates frequency modulated signal. It is one element of a radio system which, with the aid of an antenna, propagates an electromagnetic signal. Standard FM broadcasts are based in the 88 - 108 MHz range. The signal (from the microphone) is fed into the audio frequency (AF) for amplification then to the modulator which combines the modulating signal with the carrier wave transports the modulated signal through (RF) for final amplification to the antenn...
ABSTRACT According to the definition of Third Generation Partnership Program (3GPP), Machine Type Communication (MTC) is a new type of data communication between machines and devices without human interactions. Long Term Evolution (LTE) is a recent 3GPP cellular standard and is a promising technology to support future MTC data traffic. One of the main goals of LTE is to provide fast and seamless handover from one cell to another to meet strict performance requirements while simultaneously ke...
ABSTRACT A means of providing radio broadcasting services by using Frequency Modulation (FM) technique is called FM Broadcasting. Aeronautical Communication Service refers to radio communication service intended for the safety operations of aircrafts. Aeronautical communication service is categorized by International Telecommunication Union (ITU) as a primary service. This service needs to be offered under frequency interference free environment for ensuring aircrafts navigation safety. Howe...
ABSTRACT Recently, in most of the developing countries like Tanzania, life expectancy and the inherent costs of caring for an aging population are increasing. These have put an enormous demand on the health care systems and have driven the advancement of technology-based sensor devices that can remotely monitor key vital life signs. These advancements enabled proliferation of wireless sensor networks. These sensor networks are capable of monitoring and controlling environments remotely, ther...
ABSTRACT Over the last few years, there has been mounting concern about the possibility of adverse health effects resulting from exposure to radio-frequency electromagnetic fields. Such emissions from wireless communication devices like mobile phones. Since then, researchers, scientists, and other professionals have issued many reports that prove either a correlation between radiations emitted by mobile phones and health related hazards (cancer, reproduction, car accidents etc) exists or do...
ABSTRACT Wireless indoor positioning systems have become very popular in recent years. These systems have been successfully used in many applications such as asset tracking and inventory management. Although satellite-based Global Positioning Systems (GPS) and Cellular Networks (CNs) have empowered a variety of location based services but they do not work well in indoor environments where walls and excessive multipath objects greatly attenuate satellite and cellular signals. In most cases, t...
ABSTRACT In Power line communication the information are sent via electrical power lines. The power lines are characterized by multipath fading and frequency selectivity due to impedance mismatch of the channel and impulsive noise. Therefore there should be a way to increase performance of the system. In this dissertation OFDM and MCSS modulation techniques were used to enhance PLC system performance. Bit Error Rate (BER) performance of OFDM and MCSS was analyzed and system efficiency was e...
Abstract The main objective of this project was to design a cost effective and efficient electronic voting system interfaced with a GSM module. There is need to replace the conventional voting system based on paper in Zimbabwe and many African countries by electronic voting machines which are cheaper, more secure and less cumbersome. Voting is when societies or a particular group of people come up with decisions based on choice and or preferences hence the need for a cheaper, more secure, re...
Abstract Joshua Mqabuko Nkomo International Airport was established in 1959 then known as Bulawayo Airport. It is located in the second largest city of Zimbabwe, 25 km to the north of the City of Kings- Bulawayo. JM Nkomo Airport is the second largest airport in Zimbabwe and boasts of two runways which are 2,588 meters long by 45 metres wide and 1,347 metres by 30 metres wide capable of handling wide bodied aircraft such as the Boeing 767. The airport operates 24 hours a day and is equip...
Abstract The aim of home automation is to control home devices from a central control point. In this paper, I present the design and implementation of a low cost but yet flexible and secure internet based home automation system. Nowadays, Internet has spread worldwide and most of the internet connections use Ethernet as media for data transfer. In industries or in home appliances, most of the time we need to monitor and control different parameters using microcontrollers. The popularity of ho...
Table of Contents CHAPTER 1 ................................................................................................................................................................... 3 1.1 Background to the study......................................................................................................................................... 3 1.2 Problem statement .....................................................................................................................
ABSTRACT The advent of technology has made life easier, smooth and smarter. Smart phones are being applied in all aspects of life, be it Medical field, Military, Aviation or Agriculture. Agriculture is one of the key drivers of Zimbabwe`s Economy. The majority of Zimbabweans venture into farming for both personal sustenance as well as sustenance of the nation as a whole. Small farming projects are being carried out in the backyards of urban areas. People have resorted to growing Potatoes, Bea...
ABSTRACT The pharmaceutical supply chain in Zimbabwe and abroad is wrought with unscrupulous traders who have flooded the medical market with illegal, tampered and falsely labelled counterfeit drugs. The risk posed by these products has proved to be fatal to patients in recent years; and this is only the beginning of the problem. The local generic pharmaceutical industry has been dealt a huge blow due to the open boarder trading and excessive importation of falsified medicines into the countr...
ABSTRACT Considering mobile wireless networks in Zimbabwe, most base station wireless antennas are positioned in a three sector sequence, which is always symmetric and rigid. NetOne Zimbabwe always maintains this setup while Econet takes a step further by conducting RF optimization and re-arrange the azimuth, the engineers and riggers travel to the site to make alterations and it becomes an extra unexpected expense to the company. This calls for the need to come up with an automatic system th...
ABSTRACT The toll collection system currently used in Zimbabwe is an open system whereby toll levies are collected manually by toll collectors at various tollgates across the country. This system has negative effects on both the drivers and passengers as it causes time delays and traffic congestion at tollgates especially during public holidays where traffic volumes are enormous as people will be travelling. The Tollgate Collection System using RFID Technology project will eliminate hard cash...