Now showing items 1-6 of 6

    • Analysis of spectral opportunity in the UHF terrestrial TV frequency band 

      Ferreira, Melvyn; Helberg, Albert (SATNAC, 2014)
      In this paper an analysis to quantify the Spectral Opportunity (SO) or so-called TV white space that can be made available to White Space Devices (WSDs) as Secondary Users (SUs) of the Ultra High Frequency (UHF) terrestrial ...
    • An approach to improve the match-on-card fingerprint authentication system security 

      Nair, Kishor Krishnan; Helberg, Albert; Van der Merwe, Johannes (IEEE, 2016)
      The combination of smart cards and biometrics results in a strong 2-factor authentication. It facilitates a trusted credential for authenticating an individual's identity through one-to-one biometric verification using the ...
    • Fingerprint matching on smart card: a review 

      Baruni, Kedimotse; Helberg, Albert; Nair, Kishor (IEEE, 2017)
      Fingerprint Match-on-Card (MoC) offers the highest degree of privacy and security to cardholders as the fingerprint never leaves the secure environment of a smart card. The level of security of a biometric system is evaluated ...
    • Introducing XGL: a lexicalised probabilistic graphical lemmatiser for isiXhosa 

      Mzamo, Lulamile; Helberg, Albert; Bosch, Sonja (IEEE, 2015)
      In this paper, a lexicalized probabilistic graphical lemmatiser for isiXhosa, XGL, is presented. An overview of isiXhosa lemmatisation issues is given, followed by a discussion on previous work in automated lemmatisation ...
    • Intrusion detection in Bluetooth enabled mobile phones 

      Nair, Kishor Krishnan; Helberg, Albert; Van der Merwe, Johan (IEEE, 2015)
      Bluetooth plays a major role in expanding global spread of wireless technology. This predominantly happens through Bluetooth enabled mobile phones, which cover almost 60% of the Bluetooth market. Although Bluetooth mobile ...
    • White space and digital dividends: the case for dynamic spectrum access in South Africa 

      Ferreira, Melvin; Helberg, Albert (IEEE, 2011)
      In this paper we present the current state of affairs surrounding the analog switch-off and corresponding digital dividend as pertaining to South Africa. Analog switch-off and digital dividends has enjoyed much attention ...