Researchers in Computer Science: Recent submissions

Now showing items 41-60 of 89

    • Experiences, challenges and lessons from rolling out a rural WiFi mesh network 

      Rey-Moreno, Carlos; Tucker, William David; Bidwell, Nicola J.; Roro, Zukile; Siya, Masbulele Jay; Simo-Reigadas, Javier (ACM, 2013)
      The DEV community knows that technology interventions involve consideration of social and environmental factors as much as technical ones. This is particularly true for the introduction of communications infrastructure in ...

    • Socially aware software engineering for the developing world 

      Blake, Edwin H.; Tucker, William David (IIMC International Information Management Corporation, 2006)
      While the social effects of Information Technology (IT) have received much attention there is very little work on targeted methodologies to develop IT applications and content in a developing world environment. This paper ...

    • Evaluating the relevance of the “Real Access” criteria as a framework for rural HCI research 

      Maunder, Andrew; Marsden, Gary; Tucker, William David (ACM, 2006)
      Developing ICT software that is useful and usable in a rural context poses many problems. One of the major difficulties is understanding the real needs of the target users and the constraints imposed by the rural environment. ...

    • Deaf telephony: community-based co-design 

      Blake, Edwin H.; Tucker, William David; Glaser, Meryl; Freudenthal, Adinda (Wiley, 2011)
      The process of community-based co-design is one that explores various solution configurations in a multi-dimensional design space whose axes are the different dimensions of requirements and the various dimensions of designer ...

    • MUTI Telehealth 

      Tucker, William David; Vuza, Xolisa; Chetty, Marshini; Blake, Edwin H.; Marsden, Gary; Pearson, Murray; Westerveld, Rudi (2007)
      For four years we have been iteratively evolving MUTI, a rural telehealth system, for hospitals and clinics in a remote rural part of the Eastern Cape in South Africa (Chetty, 2005; Chetty et al., 2003, 2004a; Maunder et ...

    • 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 ...

    • 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 ...

    • Browser-based video communication for deaf people 

      Wang, Yuan Yuan; Tucker, William David (Telkom, 2009)
      This paper describes work in progress to to provide browser-based sign language communication for deaf users. The paper introduces the communication requirements for a disadvantaged Deaf community in Cape Town, describes ...

    • Telemedicine using VoIP combined with a store and forward approach 

      Chetty, Marshini; Tucker, William David; Blake, Edwin H. (Telkom, 2004)
      Rural areas in South Africa have unique conditions such as remoteness and scarcity of reliable public facilities. Information and Communication Technologies (ICTs) introduced into these areas must be suitable for these ...

    • Automatic voice relay with open source Kiara 

      Yi, Long; Tucker, William David (Telkom, 2009)
      One way for Deaf people to communicate with hearing people over the telephone is to use a voice relay. The service is often provided with a human relay operator that relays text into voice, and vice versa, on behalf of the ...

    • Call capacity for voice over Internet Protocol on wireless mesh networks 

      Zulu, Docas Dudu; Tucker, William David (Telkom, 2010)
      This paper describes work in progress on call capacity optimization for voice over Internet Protocol on wireless mesh networks. In a developing country such as South Africa, evidence has shown that rural inhabitants find ...

    • Bridging communications across the digital divide 

      Blake, Edwin H.; Tucker, William David (CTIT, 2004)
      Connecting people across the Digital Divide is as much a social effort as a technological one. We are developing a community-centered approach to learn how interaction techniques can compensate for poor communication across ...

    • Web-based telephony bridges for the deaf 

      Glaser, Meryl; Tucker, William David (Telkom, 2001)
      A Teldem provides text-based telephony services to the deaf. Despite an array of text-based communications mechanisms on the web, the Teldem is the only means of synchronous telecommunication available to a deaf person. ...

    • Telgo323: an H.323 Bridge for deaf telephony 

      Penton, Jason; Tucker, William David; Glaser, Meryl (Telkom, 2002)
      We have developed a prototype bridge that relays text and speech between Teldem, a text telephone for the Deaf, and a standard telephone or H.323 endpoint. Telgo323 uses modified H.323 media gateways and open source Text ...

    • SoftBridge: an architecture for building IP-based bridges over the digital divide 

      Lewis, John; Tucker, William David; Blake, Edwin H. (Telkom, 2002)
      Users and computing equipment have varying capabilities that include the abilities to exchange text and audio, engage in high bandwidth communication, etc. As the technological options increase, e ective communication ...

    • Socio-economic aspects of voice-over-IP technology in rural SA 

      Roro, Zukile; Rey-Moreno, Carlos; Tucker, William David; Siya, Masbulele Jay (Telkom, 2012)
      This paper describes work in progress towards developing a business case and preliminary design for an 802.11-based mesh network in the remote rural community of Mankosi in the Eastern Cape province of South Africa. Aside ...

    • Telecommunications bridging between deaf and hearing users in South Africa 

      Glaser, Meryl; Tucker, William David (2004)
      This paper presents a description of telecommunications for Deaf people in South Africa by contrasting the situation in the developed world. We explain the main motivations for providing a locally appropriate solution. ...

    • A Softbridge with carrier grade reliability using JAIN SLEE 

      Sun, Tao; Tucker, William David (Telkom, 2004)
      We have built a SoftBridge prototype within a JAIN (Java APIs for the Integrated Network) SLEE (Service Logic Execution Environment). A SoftBridge is a semi-synchronous multimodal IP (Internet Protocol) -based communication ...

    • Connecting bridges across the digital divide 

      Tucker, William David (ACM, 2004)
      Connecting people across the Digital Divide is as much a social effort as a technological one. We are developing a community-centered approach to learn how interaction techniques can compensate for poor communication across ...

    • Situation-aware routing for wireless mesh networks with mobile nodes 

      Kobo, Hlabishi Isaac; Tucker, William David (IIMC International Information Management Corporation, 2012)
      This paper describes a situation-aware algorithm based on the current situation of a mesh network with mobile nodes that improves quality of service. After running laboratory performance tests, we concluded that a ...