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Browsing M.S. Theses by Subject "Ultra-wideband devices."

Browsing M.S. Theses by Subject "Ultra-wideband devices."

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  • Blind Bayesian multiuser detection for impulse radio UWB systems 
    Ay, Ahmet Gökhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this thesis, we address the blind parameter estimation and multiuser de- tection problems for impulse radio ultra-wide band (UWB) systems under frequency selective fading. The frequency selective UWB channel, having a ...
  • Design of 180nm CMOS impulse radio ultra wideband transmitter for biomedical imaging 
    Ramazanoğlu, Semih. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    This thesis is about the design of radio-frequency (RF) integrated circuits for Impulse Radio Ultra-Wideband (IR-UWB) transmitter which is a system of ultra-low power pulse shaping methods for achieving low energy per pulse ...
  • Design of blocks for an ultra wireband transceiver 
    Akdağ, Evren. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Ultra wideband (UWB) is one of the strongest technologies for short-range high data rate and longer range low data rate communications. Wireless personal area networks are one example of the first group while wireless ...
  • Frequency domain channel estimation and symbol detection for impulse radio ultra-wireband systems with short cyclic prefix 
    Bahçeci, Salim. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Frequency Domain (FD) reception techniques provide the telecommunication system designers with low complexity receiver structures. However, when ultra-wideband (UWB) communication is considered with long channel impulse ...
  • Impulse radio ultra-wideband communication over free-space optical links 
    Davaslıoğlu, Kemal. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    A composite impulse radio ultra-wideband (IR-UWB) communication system is presented. The proposed system model aims to transmit UWB pulses over several kilometers through free-space optical (FSO) links and depending on the ...
  • Multi-user communication over hybrid FSO UWB channels 
    Çağıral, Erman. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    UWB communication provides high data rates with a simple signal model over RF channels up to 10 meters. In literature, several studies have been done to generate and transmit UWB signals over optical carrier via fiber ...
  • Synchronization, channel estimation and detection for ultra-wideband systems 
    Ekrem, Ersen. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Timing acquisition and synchronization of ultra-wideband UWB signals within nanosecond accuracy pose a major impediment. Noise is assumed to be additive white Gaussian noise (AWGN) in all of the works in spite of that ...
  • User cooperative communications in ultra-wideband wireless networks 
    Yalçın, Cumhur Ozan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In this thesis, we consider the user cooperation in ultra-wideband (UWB) systems characterized by severe frequency selective channels. To circumvent this problem we present a space-time (ST) coded UWB system employing the ...

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