Now showing items 38-57 of 117

  • Fast tracking students from disadvantaged backgrounds into main stream Computer Science 

    Blignaut, Renette; Venter, Isabella M.; Cranfield, D.J. (Computer Society of South Africa, 2000)
    A computer-based training (CBT) system was used to teach Computer Literacy to full-time students at the University of the Western Cape. This approach was successful in creating computer literate students as well as creating ...
  • FHMIPv6-based handover for wireless mesh networks 

    Chitedze, Zimani; Tucker, William David (Telkom, 2012)
    This paper shows that mobility management protocols for infrastructure Internet may be used in a wireless mesh network environment. Mesh topology tends to be an unplanned graph and routes change dynamically and in this ...
  • Floor control arbitration for a hybrid voice/text web-board 

    Benjamin, Anita; Tucker, William David (Telkom, 2003)
    We have built a hybrid voice/text web–board that utilizes floor control for handling resources such as microphone and interface events. The aim of this research is to determine the most appropriate floor control mechanism ...
  • A framework and toolkit for the collection and analysis of QoS statistics for voice traffic in Next Generation Networks 

    Paulse, Tania (Telkom, 2000)
    The multi-service, multi-architecture nature of NGNs is so complex that the management of services, in addition to networks, emerges as a research challenge. Despite QoS limitations, VoIP (as opposed to VoATM), dominates ...
  • A framework and toolkit for the collection and analysis of QoS statistics for voice traffic in Next Generation Networks 

    Paulse, Tania M.; Tucker, William David (Telkom, 2000)
    The multi-service, multi-architecture nature of NGNs is so complex that the management of services, in addition to networks, emerges as a research challenge. Despite QoS limitations, VoIP (as opposed to VoATM), dominates ...
  • Grafting an ATM network onto an existing ethernet network 

    Tucker, William David; Keats, Derek (Telkom, 1998)
    Grafting an ATM network onto an existing Ethernet network is a non-trivial exercise in network configuration. The process of mating ATM technology to an Ethernet network without tampering the underlying backbone and network ...
  • 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 ...
  • Guaranteed delivery of semi-synchronous IP-based communication 

    Julius, Elroy P.; Tucker, William David (Telkom, 2004)
    This research aims to find an empirical solution for guaranteeing the delivery of synchronous and asynchronous messages within a semi-synchronous IP-based communication domain. The communication infrastructure that is ...
  • 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 ...
  • 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 ...
  • ICT4D and Local Access 

    Tucker, William David; Westerveld, Rudi (John Wiley & Sons, 2015)
    Local access in the context of regions in the global South continues to undergo transformation due to the growing ubiquity of mobile connectivity and the recent appearance of what have been termed “inverse” telecommunication ...
  • 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 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • 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 ...