• DocumentCode
    1537800
  • Title

    Towards a bandwidth efficient cognitive positioning system

  • Author

    Thomas, Robin ; Maharaj, B.T.

  • Author_Institution
    Dept. of Electr., Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa
  • Volume
    48
  • Issue
    12
  • fYear
    2012
  • Firstpage
    736
  • Lastpage
    737
  • Abstract
    Presented is an efficient bandwidth determination model for the cognitive positioning system by utilising multiple receive antennas. The performance evaluations of the proposed multiple receive antenna positioning system were carried out using the linear least squares and maximum-likelihood location estimation techniques. Simulated results reveal that in a rural scenario, the 1×2 and 1×3 single-input-multiple-output (SIMO) cases display an average bandwidth efficiency with respect to positional accuracy, of 49 and 58×, respectively, over the single-input-single-output (SISO) case. For an urban scenario, the 1×2 and 1×3 SIMO cases display a higher average bandwidth efficiency of 53 and 62×, respectively, over the SISO case.
  • Keywords
    antenna arrays; cognitive radio; least squares approximations; maximum likelihood estimation; receiving antennas; bandwidth determination model; bandwidth efficiency; cognitive positioning system; linear least squares; maximum likelihood location estimation techniques; multiple receive antennas; single-input-multiple-output case;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2011.3820
  • Filename
    6215332