Now showing items 1-3 of 3

  • Joint phase noise estimation and source detection [Ortak faz gürültüsü kestirimi ve kaynak sezimlemesi] 

    Authors:Kaleli, Burç Arslan; Şenol, Habib; Panayirci, Erdal
    Publisher and Date:(2010)
    Rapidly time-varying and random disturbing effects on the phase of a signal waveform are known as phase noise. In this paper we consider the problem of joint detection of continuous-valued information source output and estimation of a phase noise by using expectation maximization (EM) algorithm. In order to estimate phase noise initial phase noise values are determined by cubic interpolation that utilizes pilot symbols. Computer simulations are performed for the proposed algorithm and the average ...

  • Linear Combination of Pulses for Coexistence in the IEEE 802.15.4a Standard 

    Authors:Erküçük, Serhat; Kaleli, Burç Arslan
    Publisher and Date:(IEEE, 2009)
    The low data rate accurate location ranging Wireless Personal Area Network zWPAN standard IEEE which is based on ultra wideband zUWBg impulse radios suggests using linear combination of pulses to reduce interference to coexisting primary systems. In this paper we consider possible implementations of linear combination of pulses as suggested in the standard and study the generated notches in the resulting code spectrum. Using the zy transform approach we show that the number of these notches is ...

  • Phase noise estimation for wireless communication systems 

    Authors:Kaleli, Burç Arslan
    Publisher and Date:(Kadir Has University, 2011)
    in wireless communication systems information symbols are transmitted through a communication channel which are affected many degradation factors. Besides fading and multipath effect of channel transmitted symbols are significantly suffered from various noise effects. Additive white Gaussian Noise (AWGN) is a well-known concept as noise which is mentioned above and usually considered as only degradation while the signal is transmitted. However in certain circumstances other degradation factors for ...