Browsing Masters Degrees (Electronic Engineering) by Type "Thesis"
Now showing items 1-20 of 110
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Adaptive techniques with cross-layer design for multimedia transmission.
(2013)Wireless communication is a rapidly growing field with many of its aspects undergoing constant enhancement. The use of cross-layer design (CLD) in current technologies has improved system performance in terms of ... -
Alternative approach to Power Line Communication (PLC) channel modelling and multipath characterization.
(2016)Modelling and characterization of the Power Line Communication (PLC) channel is an active research area. The research mainly focuses on ways of fully exploiting the existing and massive power line network for communications. ... -
ATM performance in rural areas of South Africa.
(2005)Rural areas in developing countries span vast areas with a variety of climatic zones, vegetation and terrain features, which are hostile to the installation and maintenance of telecommunication infrastructures. Provision ... -
Blind iterative multiuser detection for error coded CDMA systems.
(2005)Mobile communications have developed since the radio communications that were in use 50 years ago. With the advent of GSM, mobile communications was brought to the average citizen. More recently, COMA technology has provided ... -
Call admission control for interactive multimedia satellite networks.
(2015)Satellite communication has become an integral component of global access communication network due mainly to its ubiquitous coverage, large bandwidth and ability to support for large numbers of users over fixed and mobile ... -
Capture effects in spread-aloha packet protocols.
(2005)Research in the field of random access protocols for narrow-band systems started as early as the 1970s with the introduction of the ALOHA protocol. From the research done in slotted narrow-band systems, it is well known ... -
CDMA performance for a rural telecommunication access.
(2005)Reviews of possible telecommunication services that can be deployed in the rural areas are highlighted. These services range from narrowband to broadband. The aim of these services is to target rural Kwazulu-Natal areas ... -
Cell search in frequency division : duplex WCDMA networks.
(2006)Wireless radio access technologies have been progressively evolving to meet the high data rate demands of consumers. The deployment and success of voice-based second generation networks were enabled through the use of the ... -
Characterization and modelling of effects of clear air on multipath fading in terrestrial links.
(2013-11-06)The increased application of digital terrestrial microwave radio links in communication networks has renewed attention in techniques of estimating the probability of multipath fading distributions. Nevertheless, the ... -
Clear-air analytical and empirical K-Factor determination and characterization for terrestrial microwave LOS link applications.
(2014-10-30)The transmission media, that is, the atmosphere, through which terrestrial and satellite signals traverse, is irregular. Thus, one requires proper knowledge on how variations in atmospheric refractive conditions will affect ... -
Codec for multimedia services using wavelets and fractals.
(2004)Increase in technological advancements in fields of telecommunications, computers and television have prompted the need to exchange video, image and audio files between people. Transmission of such files finds numerous ... -
A comparative study of various speech recognition techniques.
(1990)Speech recognition systems fall into four categories, depending on whether they are speaker-dependent or independent of speaker population and on whether they are capable of recognizing continuous speech or only ... -
Concatenated space-time codes in Rayleigh fading channels.
(2011-11-02)The rapid growth of wireless subscribers and services as well as the increased use of internet services, suggest that wireless internet access will increase rapidly over the next few years. This will require the ... -
Correlation of rain dropsize distribution with rain rate derived from disdrometers and rain gauge networks in Southern Africa.
(2011)Natural phenomena such as rainfall are responsible for communication service disruption, leading to severe outages and bandwidth inefficiency in both terrestrial and satellite systems, especially above 10 GHz. Rainfall ... -
Cross layer hybrid ARQ2 : cooperative diversity.
(2008)Cooperative communication allows for single users in multi user wireless network to share their antennas and achieve virtual antenna transmitters, which leads to transmit diversity. Coded Cooperation introduced channel ... -
Cross-layer design for support of delay bound quality of service guarantees over fading channels.
(2013-11-01)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 ... -
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.
(2013-05-23)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 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 ...
