DSpace Repository

Browsing by Subject "OFDM"

Browsing by Subject "OFDM"

Sort by: Order: Results:

  • BER performances of a differential OFDM system in fading channels [articol] 
    Oltean, Marius; Mârza, Eugen; Naforniţă, Miranda (Timişoara : Editura Politehnica, 2004)
    In an OFDM system, various modulation methods can be used in order to encode the binary information. If a differential phase modulation scheme is chosen, data can be encoded in the relative phase of consecutive symbols in ...
  • Implementation of an OFDM Synchronizer [articol] 
    Comșa, Ciprian-Romeo; Burdia, Dănuţ; Chiper, Doru Florin (Timişoara: Editura Politehnica, 2004)
    The development of faster signal processing components and technologies recently induced an increased interest in Multicarrier or Orthogonal Frequency Division Multiplexing (OFDM); this is a multiplexing technique which ...
  • An improved MIMO-OFDM channel estimator in the tracking phase [articol] 
    Enescu, Andrei Alexandru; Ciochină, Silviu (Timişoara : Editura Politehnica, 2004)
    MIMO (Multiple Input Multiple Output) channels provide high theoretical capacity, today intensively exploited in modern communication systems, where they employ space diversity or/and provide a spectral efficiency increase. ...
  • Performance evaluation of single-carrier broadband transmission with Frequency Domain Equalization [articol] 
    Oltean, Marius; Vesa, Andy Răzvan; Mârza, Eugen (Timişoara : Editura Politehnica, 2004)
    One of the most challenging problems in high-rate data transmissions is to combat the inter-symbol interference introduced by the multipath propagation. Since adaptive equalization in time domain proved oftentimes to be a ...
  • Performance optimization for 5G wireless communication systems 
    Barb, Gordana-Raluca (Universitatea Politehnica Timişoara, Facultatea de Electronică şi Telecomunicaţii, 2021)
  • Recognition of OFDM modulations : approach based on high-order time-frequency methods [articol] 
    Sălăgean, Marius Ioan; Ioana, Cornel; Quinquis, André (Timişoara : Editura Politehnica, 2004)
    Nowadays a deep interest for processing of different types of digital modulations (FSK, PSK, QAM and OFDM) exists. This paper studies a technique for discrimination of the OFDM modulation. The approach is based on the ...
  • Terestrial Digital Video Broadcasting (DVB-T). System performances simulation [articol] 
    Obreja, Şerban Georgică; Păun, Adrian-Florin (Timişoara : Editura Politehnica, 2004)
    This paper analizes the performance of a Terrestrial Digital Television system. The performances are estimated using a Matlab Simulink model for the DVB-T system.
  • Wavelet OFDM performance in flat fading channels [articol] 
    Oltean, Marius (Timişoara : Editura Politehnica, 2007)
    This paper represents an investigation of the wavelet based multi-carrier modulation performance in flat fading channels. The fading envelope is distributed according to a Rayleigh probability density function. BER ...
  • Windowing techniques for OFDM systems [articol] 
    Comșa, Ciprian-Romeo; Beldianu, Spiridon Florin; Cotae, Paul (Timişoara : Editura Politehnica, 2004)
    Orthogonal Frequency Division Multiplexing (OFDM) is a technique which converts a frequency-selective fading channel into several nearly flat-fading channels and combats the intersymbol interferences (ISI) caused by multipath ...