Now showing items 111-117 of 117

  • UDCA: Energy optimization in wireless sensor networks using uniform distributed clustering algorithms 

    Abidoye, Ademola P.; Azeez, Nureni A.; Adesina, Ademola Olusola; Agbele, Kehinde K. (Academic Journals Inc., 2011)
    Transceivers are the major energy consumption in a Wireless Sensor Network which is made of low-power, small in size, low cost and multi-functional nodes. These sensor nodes are operated by batteries which put significant ...
  • Unmasking community trust issues in rural field work 

    Ufitamahoro, Marie Josée; Venter, Isabella M.; Tucker, William David; Rey-Moreno, Carlos (ACM, 2013)
    The principal objective of this paper is to describe the au- thor's eldwork and research in a remote rural area of South Africa, where a Village Telco is deployed to provide Voice over Internet Protocol on a wireless mesh ...
  • Usability of an authoring tool for generalised scenario creation for signsupport 

    Duma, Lindokuhle; Chininthorn, Prangnat; Glaser, Meryl; Tucker, William David (Telkom, 2015)
    This paper presents the usability testing results for an authoring tool that generalises scenario creation for a tool called SignSupport. SignSupport is a mobile communication tool for Deaf people that currently runs ...
  • User interfaces for communication bridges across the digital divide 

    Blake, Edwin H.; Tucker, William David (Springer-Verlag, 2006)
    Connecting people across the Digital Divide is as much a social effort as a technological one. We are developing a community-centred approach to learn how interaction techniques can compensate for poor communication across ...
  • Using voice over IP to bridge the digital divide: a critical action research approach 

    Chetty, Marshini; Tucker, William David; Blake, Edwin H. (Telkom, 2003)
    There is a great disparity between those who have access to Information and Communication Technologies (ICTs) and those that do not. This phenomenon forms part of the Digital Divide. Many ICTs may be used to help overcome ...
  • Using wearable sensors for remote healthcare monitoring system 

    Abidoye, Ademola P.; Azeez, Nureni A.; Adesina, Ademola Olusola; Agbele, Kehinde K. (Scientific Research Publishing, 2011)
    Recent technological advances in wireless communications and wireless sensor networks have enabled the design of low-cost, intelligent, tiny, and lightweight medical sensor nodes that can be strategically placed on human ...
  • 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. ...