Now showing items 70-89 of 171

    • Guaranteed delivery of semi-synchronous IP-based communication 

      Julius, Elroy P.; Tucker, William David (Telkom, 2005)
      This paper presents an empirical solution for guaranteeing the delivery of synchronous and asynchronous messages within a semi-synchronous IPbased communication domain. The communication infrastructure that is needed between ...
    • Handheld fast-track feedback instant messaging 

      Adesemowo, A. Kayode; Tucker, William David (Telkom, 2003)
      As mobile devices and networks become more data-centric, text messaging requires an extension of co-presence capabilities for better interactive discussion between input/output handicapped handheld users and their free ...
    • Higher education students’ perceptions of online learning during Covid-19—A comparative study 

      Cranfield, Desireé J.; Tick, Andrea; Venter, Isabella M. (MPDI, 2021)
      The pandemic and subsequent ‘lockdowns’ dramatically changed the educational landscape of higher education institutions. Before-COVID-19, traditional universities had choices in pedagogical practice, which included a ...
    • ICT and information security perspectives in E-Health Systems 

      Agbele, Kehinde K.; Nyongesa, Henry O.; Adesina, Ademola Olusola (Medwell Journals, 2010)
      This study examines issues pertinent to the rapidly evolving use of information as a currency of modern economies. Access to information has important benefits that can be achieved in many areas including, social-economic ...
    • The impact of ICT Investments on human development: a regression splines analysis 

      Bankole, Felix Olu; Osei-Bryson, Kweku-Muata; Brown, Irwin (Taylor & Francis, 2013)
      Despite the worldwide growth in investments in information and communication technology (JCT), few studies have investigated the complex interactions between components of JCT investments and different dimensions of human ...
    • Improved Hand-Tracking Framework with a Recovery Mechanism 

      Achmed, Imran; Venter, Isabella M.; Eisert, Peter (Telkom, 2013)
      Abstract−Hand-tracking is fundamental to translating sign language to a spoken language. Accurate and reliable sign language translation depends on effective and accurate hand-tracking. This paper proposes an improved ...
    • Improving quality-of-service in cloud/fog computing through efficient resource allocation 

      Akintoye, Samson Busuyi; Bagula, Antoine (MPDI, 2019)
      Recently, a massive migration of enterprise applications to the cloud has been recorded in the IT world. One of the challenges of cloud computing is Quality-of-Service management, which includes the adoption of appropriate ...
    • Improving usability and correctness of a mobile tool to help a Deaf person with pharmaceutical instruction 

      Motlhabi, Michael B.; Tucker, William David; Parker, Mariam B.; Glaser, Meryl (ACM, 2013)
      The computing for development community knows how to build user interfaces using qualitative methods for text il- literate users, especially on mobile devices. However, lit- tle work has been done speci cally targeting ...
    • An in-depth study of the ICT ecosystem in a South African rural community: unveiling expenditure and communication patterns 

      Rey-Moreno, Carlos; Blignaut, Renette; May, Julian; Tucker, William David (Routledge, 2016)
      There is no doubt of the contributions made by mobile phones and mobile network operators in increasing access to communications in rural areas of developing countries. Yet how affordable is this ubiquitous access in such ...
    • Information protection in video relay services 

      Henney, Andre J.; Tucker, William David (ACM, 2013)
      This work in progress paper reports on initial research into the protection of information of the individuals that make use of video relay services. Our research team has developed an application called SignSupport, to aid ...
    • Insights into the use and affordances of social and collaborative applications for student projects 

      Bankole, Omolola O.; Venter, Isabella M. (South African Institute of Computer Scientists and Information Technologists, 2017)
      The use of social and collaborative computing has the potential of assisting learning and improving the ability to work together as part of a team. Team work is a graduate attribute that students need to acquire before ...
    • Instant Messaging on handhelds: affective feedback 

      Adesemowo, A. Kayode; Tucker, William David (Telkom, 2004)
      A text only Instant Messaging (IM) built on the IETF open standard SIP/SIMPLE has been developed in line with our proposed introduction of a user-defined text Hotkey feature. These act as an on-click Affective Gesture (AG): ...
    • Instant messaging on handhelds: an affective gesture approach 

      Adesemowo, A. Kayode; Tucker, William David (SAICSIT in association with ACM, 2005)
      Text communication can be perceived as lacking in chat spontaneity, or plastic, due to medium limitations during interaction. A form of text messaging, Instant Messaging (IM), is now on the uptake, even on mobile handhelds. ...
    • Intelligent transportation related complex systems and sensors 

      Bagula, A; Kyamakya, K; Chedjou, J.C (MPDI, 2021)
      Building around innovative services related to different modes of transport and traffic management, intelligent transport systems (ITSs) are being widely adopted worldwide to improve the efficiency and safety of the ...
    • An Internet paradigm approach to policy-based network management of legacy kit for VoIP services in Next Generation Networks 

      Naidoo, Vaughn; Tucker, William David (Telkom, 2000)
      With QoS available on IP-dominant NGNs, Policy-based Network Management (PBNM) is an effective mechanism for managing services as opposed to actual devices. IP is ubiquitous, and any NGN must contend with legacy devices ...
    • Internet protocol-based push to talk 

      Kobo, Hlabishi Isaac; Tucker, William David; Norman, Michael (Telkom, 2010)
      This paper discusses a way of offering voice instant messaging based on Internet Protocol using Session Initiation Protocol. The purpose of this investigation is to enhance the modern social communication amongst the people ...
    • Internet-of-Things in motion: A UAV coalition model for remote sensing in smart cities 

      Ismail, Adiel; Bagula, Bigomokero Antoine; Tuyishimire, Emmanuel (MDPI AG, 2018)
      Unmanned aerial vehicles (UAVs) or drones are increasingly used in cities to provide service tasks that are too dangerous, expensive or difficult for human beings. Drones are also used in cases where a task can be performed ...
    • An interoperable signaling solution between SIP and H.323 

      Jeffries, Michael; Tucker, William David (Telkom, 2001)
      The Session Initiation Protocol and H.323 dominate the Voice over IP world. These signaling protocols are responsible for call setup and call tear down by IP telephony solutions. This project analyses and discusses the ...
    • An Interoperable signaling solution for IP-based Next Generation Networks 

      Jeffries, Michael; Tucker, William David (Telkom, 2000)
      Current VoIP signaling protocols are interoperable with the PSTN SS7 via H.323-to-SS7 or SIP-to-SS7 gateways. As we move toward the Next Generation Network, the PSTN falls away and we work toward carrier-grade VoIP ...
    • Investigating battery consumption in low- end smartphones: preliminary results 

      Om, Shree; Tucker, William David; Rey-Moreno, Carlos (International Information Management Corporation, 2017)
      Due to lack of electricity in the rural communities of Africa, users often have to incur extra expense on recharging their mobile phones. The limited battery capacities of low-end smartphones, therefore, present a barrier ...