Now showing items 1-4 of 4

    • Performance limits on ranging with cognitive radio 

      Dardari, D.; Karisan, Y.; Gezici, S.; D'Amico, A.A.; Mengali, U. (2009)
      Cognitive radio is a promising paradigm for efficient utilization of the radio spectrum due to its capability to sense environmental conditions and adapt its communication and localization features. In this paper, the ...
    • Position estimation via ultra-wide-band signals 

      Gezici, S.; Poor, H. V. (IEEE, 2009-02-27)
      The high time resolution of ultra-wide-band (UWB) signals facilitates very precise position estimation in many scenarios, which makes a variety applications possible. This paper reviews the problem of position estimation ...
    • Range estimation in multicarrier systems in the presence of interference: performance limits and optimal signal design 

      Karisan, Y.; Dardari, D.; Gezici, S.; D'Amico, A. A.; Mengali, U. (IEEE, 2011)
      Theoretical limits on time-of-arrival (equivalently, range) estimation are derived for multicarrier systems in the presence of interference. Specifically, closed-form expressions are obtained for Cramer-Rao bounds (CRBs) ...
    • Time-of-arrival estimation in OFDM-based cognitive radio systems 

      Karışan, Yasir (Bilkent University, 2010)
      Cognitive radio (CR) systems can efficiently utilize the radio spectrum due to their ability to sense environmental conditions and adapt their communications parameters (such as power, carrier frequency, and modulation) ...