Browsing Research Articles (Computer Science) by Title

Now showing items 135-154 of 170

    • SIP presence location service 

      Wu, Wilson; Radovanovic, Aleksander; Tucker, William David (Telkom, 2005)
      This paper presents an innovative use of the Session Initiation Protocol (SIP) for the subscription and notification of geographic information in order to provide a privacy concerned location-based service. SIP is a signaling ...

    • Situation-aware routing based on link quality for static mesh networks with mobile nodes 

      Kobo, Hlabishi Isaac; Tucker, William David; Liu, Xiao Ming (Telkom, 2011)
      Situation-aware routing seeks to improve quality of service on hybrid wireless mesh networks by making routing decisions based on the current situation of the network. BATMAN-adv is a mesh routing protocol that counts ...

    • 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 ...

    • 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 ...

    • 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 ...

    • SoftBridge in action: the first Deaf telephony pilot 

      Tucker, William David; Glaser, Meryl; Lewis, John (Telkom, 2003)
      Following on several partial prototypes, we built an automated Deaf Telephony bridging application with the SoftBridge platform. The SoftBridge performs multi-modal bridging in real-time using Text-to-Speech (TTS) and ...

    • 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 ...

    • SoftBridge: a multimodal instant messaging bridging system 

      Lewis, John; Tucker, William David; Blake, Edwin H. (Telkom, 2003)
      Instant Messaging is traditionally a text only a air. However, there are instances when it would be useful to bridge to other types of media, like speech. The SoftBridge is an application framework that enables this kind ...

    • 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 ...

    • State-of-the-art review on relevance of genetic algorithm to internet web search 

      Agbele, Kehinde K.; Adesina, Ademola Olusola; Ekong, Daniel; Ayangekun, Oluwafemi (Hindawi Publishing Corporation, 2012)
      People use search engines to find information they desire with the aim that their information needs will be met. Information retrieval (IR) is a field that is concerned primarily with the searching and retrieving of ...

    • Strategies for information management in education: some international experience 

      Bytheway, Andrew J.; Venter, Isabella M. (AOSIS Open Journals, 2013)
      Background: Recent analysis of the management of information and communications technologies in South African education suggests strongly that there is only limited strategic thinking that might guide policy-makers, school ...

    • A surface acoustic wave touchscreen-type device using two transducers 

      Ghaziasgar, Mehrdad; Connan, James (2008)
      Current wireless human-computer interaction devices such as wireless mice and touchscreens, by and large, incorporate a sophisticated electronic architecture. The sophistication achieves wireless capabilities but carries ...

    • 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. ...

    • 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 ...

    • 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 ...

    • Text Messaging a tool in e-Health services 

      Adesina, Ademola Olusola; Agbele, Kehinde K.; Nyongesa, Henry O. (Telkom, 2010)
      HIV/AIDS continues to be a menace to the global community, especially in sub-Saharan Africa and South Africa is not an exception. The infection rate is continues to grow, in particular, among the young adults. Cell ...

    • Thoughts on the future of higher education in the UK: A personal view with a historical context 

      Blackledge, Jonathan M. (MPDI, 2021)
      Before the effect of the COVID-19 Pandemic, there had been continued debate about the future of Higher Education (HE) in the UK. It is now accepted that the effect of the pandemic will have a long-lasting effect on HE ...

    • Threats to e-government implementation in the civil service: Nigeria as a case study 

      Azeez, Nureni A.; Abidoye, Ademola P.; Adesina, Ademola Olusola; Agbele, Kehinde K.; Oyewole, A.S. (Akamai University, 2012)
      The rapid advancement in Information and Communication Technology (ICT) has undoubtedly influenced positive changes in carrying out administrative functions in government institutions. The ICT adoption rate in Africa is ...

    • Towards a model for user-centred design using a positive deviance approach: A case for diabetes self-management 

      Petersen, Fazlyn; Pather, Shaun; Tucker, William David (University of Cape Town, 2017)
      Over the past twenty years there have been substantive efforts across the African continent to ensure penetration and reach of mobile technology to the citizenry. However there continues to be a debate on precisely how ...

    • Towards a scalability model for wireless mesh networks 

      Om, Shree; Rey-Moreno, Carlos; Tucker, William David (Telkom, 2015)
      Zenzeleni mesh network is a wireless ad-hoc mesh network that provides voice services using public analogue telephones to the Mankosi community in the Eastern Cape Province. We would like to improve on the network ...