Browsing Research Articles (Computer Science) by Title

Now showing items 79-98 of 170

    • 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 ...

    • Investigation of a dual-band dual radio indoor mesh testbed 

      Tucker, William David; Om, Shree (2018)
      Scalability of community wireless mesh networks in terms of mesh nodes and mobile end-users along with their anticipated usage profile remains unexplored territory. However, conducting such experiments on a live community ...

    • An IP based multimodal semi-synchronous rural telehealth service: Adding video messaging and conferencing to MuTI 

      Vuza, Xolisa; Tucker, William David (Telkom, 2004)
      We intend adding video messaging and conferencing to Multimodal Telemedicine Intecommunicator (MuTI), a previous system that has already been in place in the target environment. This is to allow a semi-synchronous communication ...

    • KernTune: Self-tuning Linux kernel performance using support vector machines 

      Yi, Long; Connan, James (Association for Computing Machinery, 2007)
      Self-tuning has been an elusive goal for operating systems and is becoming a pressing issue for modern operating systems. Well-trained system administrators are able to tune an operating system to achieve better system ...

    • Kiara: an open source SIP system to support Deaf telephony 

      Yi, Long; Tucker, William David (Telkom, 2008)
      This paper describes Kiara, an open source SIPbased communication system that provides the building blocks to enable Deaf relay services. We have implemented a prototype that provides real-time text, voice and video to a ...

    • Local ownership, exercise of ownership and moving from passive to active entitlement: a practice-led inquiry on a rural community network 

      Rey-Moreno, Carlos; Sabiescu, Amalia; Siya, Masbulele Jay; Tucker, William David (CCIRDT, 2015)
      In this paper, we aim to shed light on local ownership from a double practical and theoretical perspective, and examine its meaning as well as the factors that are bound to influence its development in community based ...

    • Making a community network legal within the South African regulatory framework 

      Rey-Moreno, Carlos; Tucker, William David; Cull, Domonic; Blom, R. (ACM, 2015)
      Community networks often operate at the fringe of legality with respect to spectrum, network infrastructure and providing services. We have been involved with such a network in a rural community, and together with them, ...

    • Managing information in education: a view from South Africa 

      Bytheway, Andrew J. (Emerald, 2017)
      PURPOSE – A three-year study of information technology and information systems management in South Africa has delivered (amongst other things) a bibliography and a new reference model. The paper aims to discuss this ...

    • Mobile Communication Tools for a South African Deaf patient in a pharmacy context 

      Chininthorn, Prangnat; Glaser, Meryl; Freudenthal, Adinda; Tucker, William David (IIMC International Information Management Corporation, 2012)
      This paper presents a case for iterative community-based co-design to facilitate the emergence of an innovative mobile system to address a potentially life-threatening scenario for Deaf people in South Africa. For Deaf ...

    • A mobile Deaf-to-hearing communication aid for medical diagnosis 

      Mutemwa, Muyowa; Tucker, William David (Telkom, 2010)
      This paper describes how a deaf to hearing communication aid built for a mobile phone can be used to provide semi-synchronous communication between a Deaf person and a hearing person who cannot sign. Deaf people with access ...