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...
- Full Text:
- 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...
- Full Text:
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)
- Full Text:
- 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)
- Full Text:
- 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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