Browsing Masters Degrees (Electronic Engineering) by Title
Now showing items 21-40 of 136
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Cross-layer design for support of delay bound quality of service guarantees over fading channels.
(2011)Quality-of-service (QoS) guarantees have become critically important for the transmission of real-time multimedia traffic in next generation mobile wireless networks. The aim of this dissertation is to investigate the ... -
Design and analysis of low voltage smart feeder protection using PhotoMOS and proficient monitoring model of real-time IOT applications.
(2021)Abstract available in PDF. -
Design and analysis of MOSFET based absorber for 5G massive MIMO base station.
(2021)The Fifth Generation (5G) technology suffers from a series of drawbacks ranging from the high cost of infrastructure development, replacement of old devices that may not be compatible with 5G, and losses within the 5G base ... -
Design and analytical performance of subthreshold characteristics of CSDG MOSFET.
(2019)The downscaling of the Metal-Oxide-Semiconductor Field Effect Transistors (MOSFET) devices have been the driving force for Nanotechnology and Very Large-Scale Integration (VLSI) systems. This is affirmed by Moore’s law ... -
The design and construction of a cryostat for thermal battery investigations.
(2011)A test cryostat was constructed to investigate the potential of a locally made thermal battery. A thermal battery is proposed to be a useful component in the construction of future superconducting fault current limiter ... -
The design and construction of an experimental MgO cold cathode X-ray tube for use in XRF spectrometry.
(2000)An introduction to the fundamental concepts of X-ray physics and X-ray tube design is given. This discussion also includes a brief description of various X-ray tube types available commercially for a number of different ... -
Design and development of a low-cost high-performance vehicle mounted UHF RFID system for tracking goods and inventory.
(2020)This research work investigates how to design and implement a low-cost high-performance vehicle mounted ultra-high frequency (UHF) radio frequency identification (RFID) system to keep track of cargo whilst in transit. The ... -
Design and implementation of an on-demand ad-hoc routing algorithm for a positional communication system.
(2003)A mobile ad-hoc network is an autonomous network of mobile devices that are connected via wireless links. In such networks there is no pre-existing infrastructure and nodes are free to move in a random fashion. Due to this ... -
Design considerations and implementation of a RF front-end for CDMA adaptive array system.
(2000)Recent studies have shown that considerable system capacity gains in mobile communication systems can be obtained by exploiting the use of antenna arrays at the base station. Unfortunately, these studies make little ... -
Design of a medium access protocol and scheduling algorithm for multimedia traffic over a DVB-RCS satellite link using a cross-layer approach.
(2010)Satellite networks provide an alternative to terrestrial networks where cost and lack of infrastructure are driving parameters. For a satellite network to be cost effective one needs to be able to increase the efficiency ... -
Determination of rainfall parameters for specific attenuation due to rain for different integration times for terrestrial line-of-sight links in South Africa.
(2016)Currently, there have been large demand for end-user services that use large bandwidths, while requiring best throughputs; these requirements are often not realistic because of meagre allocation of radio resources. ... -
Development of a model helicopter based flight test platform for multivariable feedback control.
(2009)The dissertation describes the development of a model helicopter based flight test platform for implementing autonomous six degree of freedom flight by a multiple input multiple output automatic control system. The focus ... -
Development, implementation and quantification of an ad-hoc routing protocol for mobile handheld terminals.
(2003)An ad-hoc network is a collection of mobile nodes (wireless communication devices) that transmit data over systems that do not require any centralized control, such as that found in cellular networks. This makes ad-hoc ... -
Differential spatial modulation : low complexity detection and improved error performance.
(2016)Multiple-input multiple-output (MIMO) systems utilize multiple transmit and receive antennas in order to achieve a high spectral efficiency and improved reliability for wireless links. However, MIMO systems suffer from ... -
Double spatial media based modulation.
(2019)Multiple-input multiple-out (MIMO) systems have become an increasingly popular technology in wireless communications due to their high data rates and increased reliability. However, several drawbacks degrade the performance ... -
Downlink call admission control in mixed service CDMA cellular networks.
(2007)Since the ascendance of CDMA (Code Division Multiple Access) as the generally accepted multiple access technology of choice for next generation networks, the rate of development of the wireless cellular communication ... -
A DSP-enhanced AC susceptometer for characterisation of high temperature superconductors.
(2014)DSP-based susceptometer was designed and implemented to study granular HTS Y1Ba2Cu3O7-x (YBCO) superconducting specimens. The AC susceptometer is made up of a primary coil driven by an AC signal and two sensing coils: a ... -
Effect of amplifier non-linearity on the performance of CDMA communication systems in a Rayleigh fading environment
(2010-08-31)The effect of amplifier non-linearity on the performance of a CDMA communications system -
Efficient method of estimating Direction of Arrival (DOA) in communications systems.
(2021)In wireless communications systems, estimation of Direction of Arrival (DOA) has been used both for military and commercial purposes. The signal whose DOA is being estimated, could be a signal that has been reflected from ... -
Energy efficient cooperative spectrum sensing techniques in cognitive radio networks.
(2017)The demand for spectrum is increasing particularly due to the accelerating growth in wireless data traffic generated by smart phones, tablets and other internet access devices. Most of prime spectrum is already licensed. ...