• Pipelined Two-Operand Modular Adders 

    Czyzak, M.; Horiszny, J.; Smyk, R. (Společnost pro radioelektronické inženýrství, 2015-04)
    Pipelined two-operand modular adder (TOMA) is one of basic components used in digital signal processing (DSP) systems that use the residue number system (RNS). Such modular adders are used in binary/residue and residue/binary ...
  • Design of Passive Analog Electronic Circuits Using Hybrid Modified UMDA algorithm 

    Slezak, J.; Gotthans, T. (Společnost pro radioelektronické inženýrství, 2015-04)
    Hybrid evolutionary passive analog circuits synthesis method based on modified Univariate Marginal Distribution Algorithm (UMDA) and a local search algorithm is proposed in the paper. The modification of the UMDA algorithm ...
  • A Simplified Scheme of Estimation and Cancellation of Companding Noise for Companded Multicarrier Transmission Systems 

    Peng, S.; Yuan, Z.; You, J.; Shen, Y.; Jian, W. (Společnost pro radioelektronické inženýrství, 2015-04)
    Nonlinear companding transform is an efficient method to reduce the high peak-to-average power ratio (PAPR) of multicarrier transmission systems. However, the introduced companding noise greatly degrades the bit-error-rate ...
  • Fast Implementation of Transmit Beamforming for Colocated MIMO Radar 

    Sharma, G. V. K.; Raja Rajeswari, K. (Společnost pro radioelektronické inženýrství, 2015-04)
    Multiple-input Multiple-output (MIMO) radars benefit from spatial and waveform diversities to improve the performance potential. Phased array radars transmit scaled versions of a single waveform thereby limiting the transmit ...
  • A 1.2 V and 69 mW 60 GHz Multi-channel Tunable CMOS Receiver Design 

    Oncu, A. (Společnost pro radioelektronické inženýrství, 2015-04)
    A multi-channel receiver operating between 56 GHz and 70 GHz for coverage of different 60 GHz bands worldwide is implemented with a 90 nm Complementary Metal-Oxide Semiconductor (CMOS) process. The receiver containing an ...
  • Exact Outage Performance Analysis of Multiuser Multi-relay Spectrum Sharing Cognitive Networks 

    Zhang, T.; Yang, W.; Cai, Y. (Společnost pro radioelektronické inženýrství, 2015-04)
    In this paper, we investigate the outage performance of dual-hop multiuser multi-relay cognitive radio networks under spectrum sharing constraints. Using an efficient relay-destination selection scheme, the exact and ...
  • Efficient Spectral Power Estimation on an Arbitrary Frequency Scale 

    Zaplata, F.; Kasal, M. (Společnost pro radioelektronické inženýrství, 2015-04)
    The Fast Fourier Transform is a very efficient algorithm for the Fourier spectrum estimation, but has the limitation of a linear frequency scale spectrum, which may not be suitable for every system. For example, audio and ...
  • Enhanced Model of Nonlinear Spiral High Voltage Divider 

    Panko, V.; Banas, S.; Burton, R.; Ptacek, K.; Divin, J.; Dobes, J. (Společnost pro radioelektronické inženýrství, 2015-04)
    This paper deals with the enhanced accurate DC and RF model of nonlinear spiral polysilicon voltage divider. The high resistance polysilicon divider is a sensing part of the high voltage start-up MOSFET transistor that can ...
  • A Wilkinson Power Divider with Harmonic Suppression and Size Reduction using High-low Impedance Resonator Cells 

    Hayati, M.; Abdipour, A.; Abdipour, A. (Společnost pro radioelektronické inženýrství, 2015-04)
    A miniaturized Wilkinson power divider using high-low impedance resonator cells are designed and fabricated. The proposed power divider occupies 23.7% of the conventional structure circuit area at the operating frequency ...
  • Visible Light Communications towards 5G 

    Zvanovec, S.; Chvojka, P.; Haigh, P. A.; Ghassemlooy, Z. (Společnost pro radioelektronické inženýrství, 2015-04)
    5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area. Alternatively, ...
  • Design of a Wideband Inductively Coupled Loop Feed Patch Antenna for UHF RFID Tag 

    Bashri, M. S. R.; Ibn Ibrahimy, M.; Motakabber, S. M. A. (Společnost pro radioelektronické inženýrství, 2015-04)
    A planar wideband patch antenna for ultra-high frequency (UHF) radio frequency identification (RFID) tag for metallic applications is presented in this research work. Three different shape patches are inductively coupled ...
  • Bandwidth Efficient Root Nyquist Pulses for Optical Intensity Channels 

    Fatima, S.; Muhammad, S. S.; Raza, A. D. (Společnost pro radioelektronické inženýrství, 2015-04)
    Indoor diffuse optical intensity channels are bandwidth constrained due to the multiple reflected paths between the transmitter and the receiver which cause considerable inter-symbol interference (ISI). The transmitted ...
  • RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter 

    Ur Rehman, M. Z.; Baharudin, Z.; Zakariya, M. A.; Khir, M. H. M.; Jilani, M. T. (Společnost pro radioelektronické inženýrství, 2015-04)
    A tunable bandpass filter based on a technique that utilizes substrate integrated waveguide (SIW) and double coupling is presented. The SIW based bandpass filter is implemented using a bowtie shaped resonator structure. ...
  • Optimization of Excitation in FDTD Method and Corresponding Source Modeling 

    Dimitrijevic, B.; Nikolic, B.; Aleksic, S.; Raicevic, N. (Společnost pro radioelektronické inženýrství, 2015-04)
    Source and excitation modeling in FDTD formulation has a significant impact on the method performance and the required simulation time. Since the abrupt source introduction yields intensive numerical variations in whole ...
  • Design of High Performance Microstrip Dual-Band Bandpass Filter 

    Khajavi, N.; Makki, S. V.; Majidifar, S. (Společnost pro radioelektronické inženýrství, 2015-04)
    This paper presents a new design of dual-band bandpass filters using coupled stepped-impedance resonators for wireless systems. This architecture uses multiple couple stubs to tune the passband frequencies and the filter ...
  • Copyright Protection of Color Imaging Using Robust-Encoded Watermarking 

    Cedillo-Hernandez, M.; Cedillo-Hernandez, A.; Garcia-Ugalde, F.; Nakano-Miyatake, M.; Perez-Meana, H. (Společnost pro radioelektronické inženýrství, 2015-04)
    In this paper we present a robust-encoded watermarking method applied to color images for copyright protection, which presents robustness against several geometric and signal processing distortions. Trade-off between ...
  • A Fast DOA Estimation Algorithm Based on Polarization MUSIC 

    Guo, R.; Mao, X.; Li, S.; Wang, Y.; Wang, X. (Společnost pro radioelektronické inženýrství, 2015-04)
    A fast DOA estimation algorithm developed from MUSIC, which also benefits from the processing of the signals' polarization information, is presented. Besides performance enhancement in precision and resolution, the proposed ...
  • An Improved Variable Structure Adaptive Filter Design and Analysis for Acoustic Echo Cancellation 

    A. Kar, M. Chandra (Společnost pro radioelektronické inženýrství, 2015-04)
    In this research an advance variable structure adaptive Multiple Sub-Filters (MSF) based algorithm for single channel Acoustic Echo Cancellation (AEC) is proposed and analyzed. This work suggests a new and improved direction ...
  • Fuzzy Chance-constrained Programming Based Security Information Optimization for Low Probability of Identification Enhancement in Radar Network Systems 

    Shi, C. G.; Wang, F.; Zhou, J. J.; Chen, J. (Společnost pro radioelektronické inženýrství, 2015-04)
    In this paper, the problem of low probability of identification (LPID) improvement for radar network systems is investigated. Firstly, the security information is derived to evaluate the LPID performance for radar network. ...
  • Direction-of-Arrival Estimation Based on Sparse Recovery with Second-Order Statistics 

    Chen, H.; Wan, Q.; Fan, R.; Wen, F. (Společnost pro radioelektronické inženýrství, 2015-04)
    Traditional direction-of-arrival (DOA) estimation techniques perform Nyquist-rate sampling of the received signals and as a result they require high storage. To reduce sampling ratio, we introduce level-crossing (LC) ...