{"title":"Handoff delay reduction model for heterogeneous wireless networks","authors":"Topside E. Mathonsi, Okuthe P. Kogeda","doi":"10.1109/ISTAFRICA.2016.7530593","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530593","url":null,"abstract":"The advancement of various wireless portable devices and wireless networks technologies increases the need for network services and applications, i.e., instant messaging, World Wide Web (WWW), e-Mail anywhere anytime. As a result, over the past years, we have seen an increasing number of users with the need and desire to be connected and reachable anywhere at any time. This is made possible by the existents of intersystem handoff/handover process between Heterogeneous Wireless Networks (HWNs). During the intersystem handoff process, certain applications and services are interrupted and ensuring efficiency of this process is challenging. In this paper, an Enhanced Handoff (EH) algorithm is designed by integrating enhanced fast roaming algorithm and Protocol for Carrying Authentication for Network Access (PANA) in order to lessen handoff delay in HWNs. As a result, the number of packet loss and handoff delay is minimized.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"278 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134145452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sustainability of ICT4D projects: Case study of mobile cinemas in rural South Africa","authors":"H. Manara, H. Gelderblom","doi":"10.1109/ISTAFRICA.2016.7530640","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530640","url":null,"abstract":"This paper investigates if the provision of mobile technologies to micro-entrepreneurs (MEs) can lead to the development of business models that support the sustainability of these businesses. A case study was undertaken focusing on 14 MEs participating in the Mosaic2B project - a European research project aimed at developing a framework that use cloud-based applications and low-cost internet to provide entertainment media to disadvantaged communities. The MEs from the Nkangala district in South Africa were provided with technology to download and screen movies in their communities to raise an income. Mixed methods were used to collect data over six months. The data was analysed to identify business models implemented and to determine how sustainable these are. Positive factors and obstacles were identified that affected the sustainability of the business models.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125282990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"mHealth implementation in South Africa","authors":"A. Botha, Vathiswa M. Booi","doi":"10.1109/ISTAFRICA.2016.7530667","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530667","url":null,"abstract":"Amid the rapid proliferation of first mobile devices and lately, mobile broadband, South Africa is uniquely situated to harness the promises that Mhealth have been reported to hold. Over the past years, Mhealth implementations have spread to incorporate a wide range of Mhealth applications to service the Health System information needs and end user needs. This paper aims to describe the current state of mHealth applications and implementation in South Africa by a review of reported MHealth Implementations and the stakeholders that collaborate in the space.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effects of a corpus on isiZulu spellcheckers based on N-grams","authors":"Balone Ndaba, H. Suleman, C. Keet, Langa Khumalo","doi":"10.1109/ISTAFRICA.2016.7530643","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530643","url":null,"abstract":"Correct spelling contributes to good content accessibility and readability for textual documents. However, there are few spellcheckers for Bantu languages such as isiZulu, the major language in South Africa. The objective of this research is to investigate development of spellcheckers for isiZulu and, more generally, an approach that can be reused across Bantu languages. To fill this gap in an extensible way, we used data-driven statistical language models with trigrams and quadrigrams. The models were trained on three different isiZulu corpora, being Ukwabelana, a selection of the isiZulu National Corpus, and a small corpus of news items. The system performed better with trigrams than with quadrigrams, and performance depended on the training and testing corpora. When the system was trained with old text (bible in isiZulu), it did not perform well when tested with the two corpora that contain more recent texts, such as the constitution and news items. The highest accuracy obtained was 89%. Given that data-driven statistical language models constitute a language-independent approach, we conclude that data-driven spellcheckers for all Bantu languages are indeed feasible. They are, however, sensitive to the training and testing data. This is less resource-intensive compared to manual specification of rules, and therefore the potential impact on realising spellcheckers for Bantu languages is now practically within reach. The potential societal impact of spellchecker-supported tools and apps is incalculable.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134310217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Teleweaver: An architectural overview of a customised application server for rurality","authors":"Mosiuoa Tsietsi, A. Terzoli, Sibukele Gumbo","doi":"10.1109/ISTAFRICA.2016.7530616","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530616","url":null,"abstract":"The Siyakhula Living Lab in the rural Eastern Cape province of South Africa has been in existence for over a decade now. In this time, several software artefacts have been developed by students and partners with the aim of providing contextually-relevant services to the rural community. However, reliance on different platforms and paradigms has meant that the deployment of such services would be difficult to implement and maintain reliably in actual practice. What is required is a single software platform that can act as a docking station for multiple applications, as well as a routing substrate for applications living inside and outside the platform. A candidate platform to enable this is currently being integrated under the codename Teleweaver and is built from a free, open source J2EE application server and integrates with other software components. This paper provides an architectural overview of the platform and demonstrates how it provides a sustainable context for application development going forward.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121241446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Critical success factors for eLearning adoption in the public health care sector in South Africa","authors":"N. Gcora, L. Cilliers","doi":"10.1109/ISTAFRICA.2016.7530600","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530600","url":null,"abstract":"Electronic learning (e-learning) in the health care sector is viewed as the delivery of Continued Professional Development (CPD) material via electronic media such videoconferencing, DVDs, Smartphones and other media. E-learning is recognized as one of the most important supportive practice for learning at work. Thus, an e-learning program allows the busy health care workers to access training and learning opportunities while they are also working. In South Africa, e-learning is growing at a rate of 36.2% annually, but the acceptance of this new technology is still very low. The aim of this study is to investigate the critical success factors that will help address the barriers of e-learning adoption in the public health care sector of South Africa. The study made use of a thorough literature review of peer reviewed papers in order to identify the barriers of e-learning in the South African public health sector. The Unified Theory of Acceptance and Use of Technology model was then used to develop the critical success factors that can be used to address the identified barriers. Critical success factors identified can be divided into management issues such as providing adequate finance and infrastructure as well as organisational factors including a change management programme, policies to guide e-learning programmes and training of health care workers. The study therefore recommends that the critical success factors be used to increase the adoption of e-learning in the public health care sector in order to improve service delivery.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115518774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aaron Ciaghi, Tatenda Chatikobo, L. Dalvit, Darsha Indrajith, M. Miya, Pietro Benedetto Molini, Adolfo Villafiorita
{"title":"Hacking for Southern Africa: Collaborative development of hyperlocal services for marginalised communities","authors":"Aaron Ciaghi, Tatenda Chatikobo, L. Dalvit, Darsha Indrajith, M. Miya, Pietro Benedetto Molini, Adolfo Villafiorita","doi":"10.1109/ISTAFRICA.2016.7530656","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530656","url":null,"abstract":"This paper describes a collaborative experience in the initial development of hyperlocal services for marginalised communities in Southern Africa. Problems specific to urban, peri-urban and rural contexts were identified in collaboration with local community members and NGOs in South Africa and Angola. Selected topics were presented to a group of volunteer developers for initial proof-of-concept application development at an event hosted in Italy. The volunteers produced 6 prototype applications that were demonstrated at the end of the event to a panel of experts and members of one of the interested rural communities.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131015838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ubiquitous traffic management with fuzzy logic — Case study of Maseru, Lesotho","authors":"Tumisang Sechocha Liphoto, M. Masinde","doi":"10.1109/ISTAFRICA.2016.7530680","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530680","url":null,"abstract":"Maseru is the capital city of Lesotho and is a relatively small city with roughly 67 vehicles registered each day. Traffic lights are used with the intension of effectively managing vehicular traffic at junctions. These traffic lights follow a predetermined sequence usually based on historic data. As a result of this design, they inherently fail to efficaciously manage traffic flow when it is abnormal. Vehicles on one side have to wait even though there are no cars on other sides of the road. The consequences of this include increased congestion and atmospheric air pollution. Technological advancements have resulted in the now widely researched Internet of Things paradigm with one of its applications being vehicular traffic management. The focus of this paper is the design of a prototype reactive system based on Internet of Things whose functionality includes traffic lights that are capable of reacting to prevailing conditions. The system makes use of Radio Frequency IDentifier technology and mobile tools to ubiquitously collect traffic data and disseminate value added traffic information.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130348174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using Mobile Moodle to enhance Moodle LMS accessibility and usage at the University of Dar es Salaam","authors":"J. Mtebe, Aron Kondoro","doi":"10.1109/ISTAFRICA.2016.7530649","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530649","url":null,"abstract":"Over the last decade, there has been a remarkable increase in the adoption and use of learning management systems (LMS) in sub-Saharan Africa in a bid to improve the quality of on-campus delivery as well as increasing access to education through blended and distance learning. Despite the increased adoption of LMS in the region, their potential has not been fully exploited as relatively few users tend to use them, thereby not justifying the high infrastructure investment costs. The continued penetration and adoption of mobile phones amongst users in the region presents an opportunity to find ways of making LMS accessible to users via mobile phones. However, there are relatively few attempts to enhance accessibility and usage of LMS into users' mobile phones especially in sub-Saharan Africa. This article aims at sharing experiences of configuring and using Mobile Moodle to enhance Moodle LMS usage and accessibility via mobile phones at the University of Dar es Salaam. Through analyzing log of two selected courses, it was revealed that the majority of students used Course View and User List features to read course notes and to check for their fellow students respectively. In addition, students indicated that the Mobile Moodle was easy to use and enable them to accomplish learning activities more quickly through a questionnaire that was distributed to elicit their opinions about the Mobile Moodle. The findings from this study will enable those who are involved in LMS implementation especially in sub-Saharan Africa to widen access of LMS via mobile phones and therefore increase LMS usage.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130279426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Smart under-five health care system","authors":"Tawachi Nyasulu","doi":"10.1109/ISTAFRICA.2016.7530674","DOIUrl":"https://doi.org/10.1109/ISTAFRICA.2016.7530674","url":null,"abstract":"Internet of Things based health care systems promise a significant contribution towards improvement of medical information systems through automation of routine monitoring of patients and real-time transmission of medical records. However, digitisation of identification, tracking and monitoring of patients remains a challenge in rural areas of Africa, not to mention of associated power and internet connectivity constraints. This paper proposes a general architecture for monitoring of growth and vital parameters of under-five children. The system alerts medical personnel in real time about under-weight cases or abnormal readings of vital parameters in order to take further medical diagnosis. Furthermore, the system saves the child's personalised measurements to a cloud-based data store in real time. Preliminary tests of network performance of the IoT application design resulted in an average latency of 1.7s and system availability of 99.96%, thus validating its usability.","PeriodicalId":326074,"journal":{"name":"2016 IST-Africa Week Conference","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124237476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}