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E-commerce within the South African electronic component distribution industry

  • Authors: Silberman, Stephen
  • Date: 2012-08-13
  • Subjects: Electronic industries , Mobile communication systems
  • Type: Thesis
  • Identifier: uj:9065 , http://hdl.handle.net/10210/5527
  • Description: M.B.A. , This dissertation looks at E-Commerce in the South African electronic component distribution industry. With this in mind, various questions were defined and these were used to help understand the current situation, determine the future that ECommerce should have in the industry and find a mechanism to go from the current to the future situation, the questions are as follows: Has the traditional electronic component distribution channel been made obsolete by E-Commerce? What does the South African electronic component consumer want from the distributor in terms of E-Commerce? Is the communication and information technology infrastructure in South Africa adequate for the needs of E-Commerce within the electronic component industry? What are the E-Commerce models and strategies? What form and scope should E-Commerce take within the electronic component distribution industry? The research will ultimately be used as a model to help determine the E-Commerce strategy of Analog Data Products (ADP). It will enable ADP to determine if it needs to implement E-Commerce and if so at what level. The research was done using literature review to determine current trends and to seek new insights. A survey was used to verify the findings of the literature review and fill in gaps of knowledge that the literature review was unable to answer. The literature review found that there are numerous E-Commerce models, of which most fall short when compared to a generic business strategy model. It was also found that E-Commerce could often be detrimental to business. The literature also found that there are deficiencies in bandwidth in South Africa. The survey results showed that respondents are happy with the speed of E-Commerce type media, it was therefore concluded that the electronic component distribution industry is different from the norm because of its high technology nature. The survey results also showed that respondents would like to make more use of their local distributor. This indicates that the traditional distribution channel has not become obsolete. However there is a desire for more E-Commerce type transactions. These transactions should be implemented as a complement to the traditional channels rather then replacing all types of conventional business. An E-Commerce strategy should include a thorough understanding of how E-Commerce affects the value chain, which in turn will show which aspects of the chain require E-Commerce as complements and which do not.
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Near field communication in smart phones using MIFARE standards for illiterate patients

  • Authors: Mareli, Mahlaku
  • Date: 2014-09-17
  • Subjects: Mobile communication systems , Near field communication , Mobile computing
  • Type: Thesis
  • Identifier: uj:12328 , http://hdl.handle.net/10210/12115
  • Description: M.Ing. (Electrical And Electronic Engineering) , Patient safety in healthcare is sometimes compromised due to medical and clerical errors. These errors can increase the operational cost of healthcare if not identified and rectified speedily. They can also result in misdiagnosis, wrong treatment options being provided to patients and in the worst case may result in fatalities. Healthcare errors in medication documentation, administration, and prescription can cause incorrect medicine administration and dosage instructions for patients. Sub-Saharan Africa has the lowest percentage (adults is 59% and youth is 70%) of literacy compared to other regions of the world sitting at (adults is 84% and youth is 89%). The challenge facing illiterate patients is that they can easily make the same mistakes and may not take their medication correctly. The application of Near Field Communication (NFC) technology in healthcare has demonstrated some advantages of security, accuracy and effectiveness over other technologies. The availability of NFC in some smartphones has also encouraged the development of more applications. The main objective of this thesis is to present a solution using an Android based NFC application that enables a NFC enabled smartphone to read NFC tags placed on medication containers and be able to play the audio instructions to illiterate patients. Based on a comprehensive review of the literature on NFC applications in healthcare, this solution is the first of its kind. A set of experiments were done in an effort to understand the operation of NFC phones under different environments. The proposed application reads the NFC tag placed on the medicine container. The data read from the NFC tag is used to identify the audio file corresponding to the particular patient’s medicine instructions. If the audio instructions are not available, on the phone, it is fetched from a remote server database using an Internet connection. The application automatically plays the audio file to the patient. Three research hypotheses were tested and it was confirmed that (H1), modified NFC antenna can reduce the level of induced power in it; (H2), the NFC technology is faster and more accurate in reading tag code that Barcode technology reading the barcode; (H3), the NFC reading process of NFC tag code is not negatively affected by the amount of light in the environment it is operated in. The Barcode reading accuracy was 10% errors when operating in the environment with light brightness of 128000 lumens. When the light brightness was reduced to 8900 lumens, the Barcode accuracy errors increased to 45%.
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Using call admission control and call duration control for mobile network congestion management

  • Authors: Alimi, Oyeniyi Akeem
  • Date: 2016
  • Subjects: Mobile communication systems , Wireless communication systems - Management , Cell phone systems
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/233166 , uj:23799
  • Description: M.Tech. (Electrical Engineering) , Abstract: Wireless communications have experienced massive development remarkably in the past decade. Networks such as global system for mobile communications (GSM) and universal mobile telecommunication service (UMTS) has enjoyed enormous patronization, hence leading to massive mobile network congestion. The problem of network congestion is a network managerial issue that affects the Quality of Service (QoS) rendered by a network. Hence for the sustainability of the system, there is a need to fully manage the radio resources during peak and off peak periods. Call Admission Control (CAC) schemes are constantly being used extensively in managing mobile network congestion. CAC is an approach that can provide credible QoS by regulating the number of connections into the cellular network thereby allowing good use of the radio resources, reducing network congestions, interference and other QoS problems. Network resources cannot be available for all users at all times especially during busy hour traffic. Hence, these resources require effective and efficient allocation so that more subscribers are being allowed to use the network irrespective of the network traffic at a particular reference time. Mobile network congestion can be controlled by suppressing the mobile network traffic demand. The traffic demand varies proportionally with average rate of call arrival and the average duration of the calls. Hence marginalizing the average call duration will minimize traffic load, thereby reducing network congestion. Some network users due to their lifestyle of being affluent or business demands, holds on to a particular channel during long duration of calls at the detriment of other network users. CAC scheme cannot solve congestion problems due to the selfishness of these particular sets of users. Here, the combination of a channel reservation CAC scheme with Call Duration Control (CDC) scheme was proposed, in which users that have stayed over a predetermined period in the network will be served a termination notice so as to make the channel available for new users. The motive is to provide the available channels to accommodate more users. A simulation-based approach was used to model the combination of the two schemes and the combination produces good results in reducing the congestion menace. The network type deployed in the research is GSM. The result of the CAC/CDC combination schemes were compared to the result of the ordinary CAC schemes in order to verify the impact of the...
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Modulation codes for mobile communications

Markov models for mobile radio data communication systems

  • Authors: Oosthuizen, Daniël Reyneke
  • Date: 2014-04-24
  • Subjects: Mobile communication systems
  • Type: Thesis
  • Identifier: uj:10891 , http://hdl.handle.net/10210/10399
  • Description: M.Ing. , In general, error control coding is absolutely necessary for reliable data transmission. However, the performance of error control codes depends on the statistical structure of the error process on the communication channel. The mobile radio channel, which has been investigated, is subject to path loss effects, a variety of noise effects and interferences and various types of scattering and multipath fading. All these effects contribute to the error processes on the radio channel when transmitting data over it. Any meaningful analytical description of the error process in terms of the characteristics of the individual physical causes of errors are difficult to undertake. Consequently, alternative ways of modelling real communication. channels are being presented. It is more convenient to include the above mentioned perturbations in a discrete inner communication channel consisting of the modem, radio equipment and the mobile radio medium, which are then modelled with a discrete partitioned Markov chain. The partitioned Markov chain inner channel models also give a more accurate description of a real communication channel than does a binary symmetric channel model. However, in order to model a communication channel, the complete statistical structure of the bit error sequence on the channel must be known. In the first instance the memory effective recording of the error sequence of discrete inner communications channels has been considered. This has led to an implementation, where a portable recording system has been developed for mobile .radio channels or any other communication channel with a data rate of up to 4800 bits per second. Programs have been developed to determine all the important statistical distributions which are necessary to be able to model the channel. A channel modelling system has been developed, which fits a channel model to the real channel and then determines the important statistical distributions of the channel model to enable comparison with the real channel. The channel modelling system is versatile and can be used with any future communication system. A number of different mobile VHF and UHF inner channels have been investigated experimentally and the associated discrete models have been developed. In addition to the above mentioned discrete inner communications channels, some "outer channels" have been developed. The "outer channels" comprise of an inner channel and the block error detection, correction and misdetection events, associated with the code words of an error control system. It has been shown that the underlying statistical structure of these events on a discrete renewal inner channel can be represented with outer channel models, i.e. simple partitioned Markov processes, similar to the inner channel models. Analytical procedures to determine the parameters of these outer channel models are being presented. The inner channel parameters and the characteristics of the error control event have been used to develop the outer channel models, i.e. the simple partitioned Markov chains, representing the underlying statistical structure of the block error detection, decoding error in error correction and misdetection (undetected error) events of a block code on the discrete renewal inner channel. Finally it is shown that these outer channel models can be used to evaluate error control codes and systems. Forward-error control and automatic-repeat-request systems have been evaluated and compared with each other.
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ABSA'S implementation of mobile banking as a value-added mobile business offering

  • Authors: Muir, Clarissa
  • Date: 2008-06-13T09:34:19Z
  • Subjects: ABSA Bank , Mobile communication systems , Mobile banks and banking , Customer services
  • Type: Thesis
  • Identifier: uj:2791 , http://hdl.handle.net/10210/622
  • Description: A new economic order has developed that is referred to as the New Economy and has brought about a shift in focus from manufactured goods and services to an economy that places emphasis on knowledge and the application thereof within a specific context (Leung, 2002). Furthermore, this economy places emphasis on the saliency of information and how it can be used as a competitive and commercial tool. The New Economy is characterised by a unique consumer that functions within it called the New Consumer and this individual functions as a ubiquitous entity that is always on as this individual uses mobile devices that enables them to conduct business and communicate anywhere and at any time. The New Consumer is characterised by being individualistic, involved, independent and informed but also suffers from scarcities such as time, attention and trust. In view hereof, value has become a pivotal matter that all organisations should place emphasis on when delivering products and services to this consumer. Furthermore, Information and Communication Technologies (ICTs) has brought about a technological revolution in the New Economy and has changed the way in which the consumer works and conducts business. Mobile devices form an important component of the New Economy as it also offers organisations the opportunity to adopt new business models, using wireless technology, that enable mobile business (m-business) solutions. M-business refers to the purchasing of information, goods and services via a mobile device (Anon., 2000c) and organisations offering m-business in the New Economy are enabled to offer the advantages such as delivering just the right information, to just the right people at just the right time which means that convenient and personalised location-based information can be delivered to the individual. One industry that has adopted the m-business solution, as a value-added service, is the banking industry and various banks are offering the mobile financial solution to consumers meaning that they can access their accounts, pay their bills and make transfers using a mobile device. As many banks have adopted m-banking, as a value-added m-business offering, a credible source that elaborates on the implementation of m-banking and the industry requirements pertaining to the implementation process is Mobey Forum who has published the Mobey Forum White Paper (Anon., 2004p) that explains the implementation requirements of mobile financial services such as customer proposition, business priorities, technical issues and implementation issues. This study focuses on the industry requirements of m-banking, as set out by the Mobey Forum White Paper (Anon., 2004p). Absa, a South African bank, has been utilised as a one-shot case study todetermine how the industry requirements of mobile banking, as a value-added m-business offering, is implemented by the bank. , Ms. Andrea Crystal,
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GNSS-LTE/LTE-A interference mitigation : the adjacent channel rejection ratio approach

Strategies leading to the success of mobile network operators : a comparative study of mobile network operators in the UK and SA

  • Authors: Radebe, Jack
  • Date: 2014-07-22
  • Subjects: Mobile communication systems
  • Type: Thesis
  • Identifier: uj:11730 , http://hdl.handle.net/10210/11458
  • Description: M.B.A. , The first mobile cellular telephone was established In St. louis (Missouri. USA) in 1946. In a few years time Europe followed with a similar service. These systems were based on technology developed during the World War 2 (Vodacom Corporate Profile:1999/2000:1). Between 1950 and 1960, cellular radio evolved to become automatic and Its costs dropped due to the Introduction of transistor technology. During the 1970's large scale integration and development of micro-processors enabled more complex systems development (Vodacom Corporate Profile :1999/2000:1 ). In 1988 the European Telecommunications Standard Institute (ETSI) was created. This Institute enabled network operators and telecommunications equipment manufacturers to become Involved In the specification of Global System for Mobile Communications (GSM) (Vodacom Corporate Profile :199~/2000:1 ). The GSM standard of communication was launched In Europe in 1992. This standard Is widelyused In European and African countries...
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The acceptance and use of mobile banking apps among millennials in Gauteng, South Africa

  • Authors: Thusi, Philile
  • Date: 2018
  • Subjects: Banks and banking, Mobile , Financial institutions - Customer services , Mobile communication systems , Electronic commerce , Financial services industry - Technological innovations
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/402903 , uj:33738
  • Description: Abstract : Mobile banking apps are one of the recent improvements in the mobile banking innovation domain that retail banks are promoting to their customers. Research into mobile banking app user behaviour is important to promoting a rapid acceptance of this banking innovation. Despite this, only limited studies have addressed this issue, particularly from the standpoint of emerging nations such as South Africa. Using the Unified Acceptance and Use of Technology (UTAUT 2) model as its theoretical background, this research analysed the drivers of and barriers to mobile banking app acceptance and use among millennials in Gauteng, South Africa. A survey strategy using a self-administered questionnaire was applied to obtain 352 usable responses from customers of the five major South African retail banks (Capitec, Absa, FNB, Nedbank, and Standard Bank). A partial least squares structural equation modelling technique using SmartPLS version 3 was used to assess the measurement model properties and to test the hypotheses proposed for the study. The findings suggest that performance expectancy a, facilitating conditions are significant drivers of millennials’ behavioural intention to use mobile banking apps. Furthermore, perceived risk was found to be a critical barrier to millennials’ behavioural intention to accept mobile banking apps; but, surprisingly, the impact of perceived risk on the actual use of mobile banking apps was found to be insignificant, thus suggesting that perceived risk is not a deterrent to mobile banking app use among millennials who currently use the innovation. Moreover, the actual use of mobile banking apps was found be strongly and positively associated with behavioural intention and facilitating conditions. The findings of this study contribute to the limited literature that currently exists on mobile banking apps acceptance in emerging countries such as South Africa. In addition, this study validates the UTAUT2 in a different country (South Africa), in a different age group (millennials), and in a different technology domain (mobile banking apps), and thus contributes towards cross-cultural validation of the UTAUT2 beyond its original setting. , M.Com. (Marketing Management)
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Exploring stakeholder perceptions pertaining to MTN’s online responses to stakeholder activism in the #DataMustFall controversy

  • Authors: Gasebonoe, Phenyo
  • Date: 2019
  • Subjects: Social responsibility of business , Mobile communication systems
  • Language: English
  • Type: Masters (Thesis)
  • Identifier: http://hdl.handle.net/10210/414640 , uj:34979
  • Description: Abstract: The aim of the study was to explore stakeholder perceptions relating to MTN’s online responses to stakeholder activism in the #DataMustFall controversy. A case study methodological orientation was adopted as the base of this study and MTN Group was chosen as sample and population due to the fact that it was declared one of the largest telecommunication organisation in Africa. This research takes the course of documentation study meaning the use of multiple data collection techniques and sources strengthens the credibility of outcomes and enables different interpretations and meanings are to be included in the data analysis. The findings gathered from data collected are analysed using both qualitative and quantitative content analysis. .. , M.A. (Strategic Communication)
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