Now showing items 21-28 of 28

  • Efficient Resource Allocation and Sectorization for Fractional Frequency Reuse (FFR) in LTE Femtocell Systems 

    Kawser, M. T.; Islam, M. R.; Ahmed, K. I.; Karim, M. R.; Saif, J. B. (Společnost pro radioelektronické inženýrství, 2015-12)
    The Fractional Frequency Reuse (FFR) is a resource allocation technique that can effectively mitigate inter-cell interference (ICI) in LTE based HetNets and it is a promising solution. Various FFR schemes have been suggested ...
  • A Novel Diversity Receiver Structure for Severe Fading and Frequency Offset Conditions 

    Dimitrijevic, B.; Krstic, V.; Nikolic, B. (Společnost pro radioelektronické inženýrství, 2015-12)
    This paper presents a novel diversity receiver of MPSK signal in fading channel in the presence of the carrier frequency offset. As a part of this receiver, a new algorithm for the estimation of the combining coefficients ...
  • Interference Suppression Performance of Automotive UWB Radars Using Pseudo Random Sequences 

    Pasya, I.; Kato, H.; Kobayashi, T. (Společnost pro radioelektronické inženýrství, 2015-12)
    Ultra wideband (UWB) automotive radars have attracted attention from the viewpoint of reducing traffic accidents. The performance of automotive radars may be degraded by interference from nearby radars using the same ...
  • Comments on Pinched Hysteresis Loops of Memristive Elements 

    Biolek, Zdeněk; Biolek, Dalibor; Biolková, Viera; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2015-12)
    The hysteresis loops pinched in the v-i origin belong to well-known fingerprints of memristive elements driven by bipolar periodical signals. Some element properties follow from the loop behavior in the close neighborhood ...
  • A Robust Color Image Watermarking Scheme Using Entropy and QR Decomposition 

    Laur, L.; Rasti, P.; Agoyi, M.; Anbarjafari, G. (Společnost pro radioelektronické inženýrství, 2015-12)
    Internet has affected our everyday life drastically. Expansive volumes of information are exchanged over the Internet consistently which causes numerous security concerns. Issues like content identification, document and ...
  • Ku Band Rotary Joint Design for SNG Vehicles 

    Torpi,H.; Bostan, S. M. (Společnost pro radioelektronické inženýrství, 2015-12)
    A wideband I-type rectangular waveguide rotary joint (RJ) is designed, simulated and built. It has an excellent performance over the whole Ku Band (10.7-14.5 GHz) where the return loss is less than -23 dB at its highest ...
  • Cascade Structure of Digital Predistorter for Power Amplifier Linearization 

    Solovyeva, E. B. (Společnost pro radioelektronické inženýrství, 2015-12)
    In this paper, a cascade structure of nonlinear digital predistorter (DPD) synthesized by the direct learning adaptive algorithm is represented. DPD is used for linearization of power amplifier (PA) characteristic, namely ...
  • Generalized Propagation Channel Model for 2GHz Low Elevation Links Using a Ray-tracing Method 

    Zeleny, J.; Perez-Fontan, F.; Pechač, Pavel (Společnost pro radioelektronické inženýrství, 2015-12)
    Unmanned Aerial Vehicles (UAV) will increasingly be used for responding to emergencies or for law enforcement in civil surveillance applications. Transferring the enormous amounts of information from UAV-mounted cameras ...