A Review of the Siyakhula Living Lab’s Network Solution for Internet in Poor Communities
- Muchatibaya, Hilbert, Terzoli, Alfredo, Dlodlo, Nomusa
- Authors: Muchatibaya, Hilbert , Terzoli, Alfredo , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474279 , vital:77698 , xlink:href="https://ieeexplore.ieee.org/abstract/document/9577006"
- Description: Changes within ICT over the past decade required a review of the network solution deployed in the Siyakhula Living Lab (SLL), a joint venture between the Universities of Fort Hare and Rhodes, focused on finding blueprints for sustainable e-infrastructure in poor communities. The review found that the topology used in the SLL’s network is still viable but WiMAX is now outdated. Also, the in-network cache, Squid, is no longer effective, given the switch to HTTPS, the strong presence of advertising, and the data weight of current web pages. The solution to the first issue is outdoor Wi-Fi, a proven solution easily deployable in grass-roots fashion. The second issue can be cured leveraging Squid’s ‘bumping’ and splicing features; deploying a browser extension to make picture download optional; and using Pi-hole, a DNS sinkhole. Hopefully, the revised solution could become a component of South African Government’s broadband plan, “SA Connect”.
- Full Text:
- Date Issued: 2021
- Authors: Muchatibaya, Hilbert , Terzoli, Alfredo , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474279 , vital:77698 , xlink:href="https://ieeexplore.ieee.org/abstract/document/9577006"
- Description: Changes within ICT over the past decade required a review of the network solution deployed in the Siyakhula Living Lab (SLL), a joint venture between the Universities of Fort Hare and Rhodes, focused on finding blueprints for sustainable e-infrastructure in poor communities. The review found that the topology used in the SLL’s network is still viable but WiMAX is now outdated. Also, the in-network cache, Squid, is no longer effective, given the switch to HTTPS, the strong presence of advertising, and the data weight of current web pages. The solution to the first issue is outdoor Wi-Fi, a proven solution easily deployable in grass-roots fashion. The second issue can be cured leveraging Squid’s ‘bumping’ and splicing features; deploying a browser extension to make picture download optional; and using Pi-hole, a DNS sinkhole. Hopefully, the revised solution could become a component of South African Government’s broadband plan, “SA Connect”.
- Full Text:
- Date Issued: 2021
Exploring the Integration of Blockchain Technology and IoT in a Smart University Application Architecture
- Mjoli, Siphamandla, Dlodlo, Nomusa
- Authors: Mjoli, Siphamandla , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474342 , vital:77703 , xlink:href="https://dl.acm.org/doi/pdf/10.1145/3459104.3459153"
- Description: The ecosystem inherent within currently deployed Internet of Things (IoT) systems is that of low-powered devices equipped with sensors that consume data. The data these devices collect is then stored in use-case specific applications, which are connected through application layer gateways that allow these devices to connect to third party cloud storage platforms for further processing. This stratified architecture has created data silos that introduce complexities such as limited user control and lack of solicitation regarding the usage of user data. The constant proliferation of IoT devices deployed in smart cities which include smart university campus (SUC) has resulted in the need for the development of IoT architecture models which are data-centric. In this paper a blockchain- based architecture model, and specifically, the distributed ledger inherent within the Ethereum blockchain, combined with the Proof Of Authority (POA) consensus mechanism, are proposed as a potential solution to developing a proof of concept architecture model that is data-centric. The proposed architecture model will be tested against with application specific use-cases in a simulated environment within the context of a SUC which is subsumed by a smart city.
- Full Text:
- Date Issued: 2021
- Authors: Mjoli, Siphamandla , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474342 , vital:77703 , xlink:href="https://dl.acm.org/doi/pdf/10.1145/3459104.3459153"
- Description: The ecosystem inherent within currently deployed Internet of Things (IoT) systems is that of low-powered devices equipped with sensors that consume data. The data these devices collect is then stored in use-case specific applications, which are connected through application layer gateways that allow these devices to connect to third party cloud storage platforms for further processing. This stratified architecture has created data silos that introduce complexities such as limited user control and lack of solicitation regarding the usage of user data. The constant proliferation of IoT devices deployed in smart cities which include smart university campus (SUC) has resulted in the need for the development of IoT architecture models which are data-centric. In this paper a blockchain- based architecture model, and specifically, the distributed ledger inherent within the Ethereum blockchain, combined with the Proof Of Authority (POA) consensus mechanism, are proposed as a potential solution to developing a proof of concept architecture model that is data-centric. The proposed architecture model will be tested against with application specific use-cases in a simulated environment within the context of a SUC which is subsumed by a smart city.
- Full Text:
- Date Issued: 2021
Exploring the use of IoT and blockchain technology in a 3rd generation bicycle sharing platform within a smart University campus
- Mjoli, Siphamandla, Dlodlo, Nomusa
- Authors: Mjoli, Siphamandla , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474353 , vital:77704 , xlink:href="https://doi.org/10.1063/5.0073337"
- Description: The functioning of a smart city relies upon six key factors, which are smart governance, environment, living, people and mobility. This paper focuses on the smart mobility factor, within the context of a smart university which is a surrogate of a smart city. A proof of concept transport system will be developed. The transport system will consist of a third-generation bicycle-sharing platform, which will explore the usage of several technology paradigms such as the Internet of Things (IoT) and blockchain technology. The transportation system will consist of a permissioned Proof Of Authority (POA) blockchain network of docking stations, which users of the smart university campus will interact with through a mobile application to rent and dock bicycles.
- Full Text:
- Date Issued: 2021
- Authors: Mjoli, Siphamandla , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474353 , vital:77704 , xlink:href="https://doi.org/10.1063/5.0073337"
- Description: The functioning of a smart city relies upon six key factors, which are smart governance, environment, living, people and mobility. This paper focuses on the smart mobility factor, within the context of a smart university which is a surrogate of a smart city. A proof of concept transport system will be developed. The transport system will consist of a third-generation bicycle-sharing platform, which will explore the usage of several technology paradigms such as the Internet of Things (IoT) and blockchain technology. The transportation system will consist of a permissioned Proof Of Authority (POA) blockchain network of docking stations, which users of the smart university campus will interact with through a mobile application to rent and dock bicycles.
- Full Text:
- Date Issued: 2021
LTSP Client Image Maintenance: Utilising a Virtualisation Player to Support Educators to Directly Manage Classroom Applications
- Zvidzayi, Tichaona, Terzoli, Alfredo, Dlodlo, Nomusa
- Authors: Zvidzayi, Tichaona , Terzoli, Alfredo , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474364 , vital:77705 , xlink:href="https://ieeexplore.ieee.org/abstract/document/9576935"
- Description: This paper reports on the work done in the Siyakhula Living Lab (SLL) schools, a joint project between the Universities of Rhodes and Fort Hare. The computing infrastructure in SLL is based on the Linux Terminal Server Project (LTSP), which allows client computers to boot from a centralised server and in some cases offload the computation to the server. Most SLL educators find it difficult to manage classroom applications using the GNU/Linux tools directly. So, educators had to rely on others to add applications for their classroom activity, reducing their sense of being in control and making processes longer and less flexible. A recent development in LTSP has introduced the possibility of setting the boot image for the clients within a virtual machine. This paper explores this option in detail and proposes that educators switch to a virtualisation player to manage applications they want to use in the classroom.
- Full Text:
- Date Issued: 2021
- Authors: Zvidzayi, Tichaona , Terzoli, Alfredo , Dlodlo, Nomusa
- Date: 2021
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/474364 , vital:77705 , xlink:href="https://ieeexplore.ieee.org/abstract/document/9576935"
- Description: This paper reports on the work done in the Siyakhula Living Lab (SLL) schools, a joint project between the Universities of Rhodes and Fort Hare. The computing infrastructure in SLL is based on the Linux Terminal Server Project (LTSP), which allows client computers to boot from a centralised server and in some cases offload the computation to the server. Most SLL educators find it difficult to manage classroom applications using the GNU/Linux tools directly. So, educators had to rely on others to add applications for their classroom activity, reducing their sense of being in control and making processes longer and less flexible. A recent development in LTSP has introduced the possibility of setting the boot image for the clients within a virtual machine. This paper explores this option in detail and proposes that educators switch to a virtualisation player to manage applications they want to use in the classroom.
- Full Text:
- Date Issued: 2021
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