• Tunable Versatile High Input Impedance Voltage-Mode Universal Biquadratic Filter Based on DDCCs 

  Horng, Jiun-Wei; Chiu, To-Yao; Jhao, Zih-Yang (Společnost pro radioelektronické inženýrství, 2012-12)

  A high input impedance voltage-mode universal biquadratic filter with three input terminals and seven output terminals is presented. The proposed circuit uses three differential difference current conveyors (DDCCs), four ...

• Modified Level Restorers Using Current Sink and Current Source Inverter Structures for BBL-PT Full Adder 

  Tirumalasetty, Venkata Rao; Avireni, Srinivasulu (Společnost pro radioelektronické inženýrství, 2012-12)

  Full adder is an essential component for the design and development of all types of processors like digital signal processors (DSP), microprocessors etc. In most of these systems adder lies in the critical path that affects ...

• Evolutionary Synthesis of Fractional Capacitor Using Simulated Annealing Method 

  Slezak, Josef; Goetthans, Tomas; Drinovsky, Jiri (Společnost pro radioelektronické inženýrství, 2012-12)

  Synthesis of fractional capacitor using classical analog circuit synthesis method was described in [6]. The work presented in this paper is focused on synthesis of the same problem by means of evolutionary method simulated ...

• Graph Cuts based Image Segmentation using Fuzzy Rule Based System 

  Khokher, Muhammad Rizwan; Ghafoor, Abdul; Siddiqui, Adil Masood (Společnost pro radioelektronické inženýrství, 2012-12)

  This work deals with the segmentation of gray scale, color and texture images using graph cuts. From input image, a graph is constructed using intensity, color and texture profiles of the image simultaneously. Based on the ...

• A Non-blind Color Image Watermarking Scheme Resistent Against Geometric Attacks 

  Ghafoor, Abdul; Imran, Muhammad (Společnost pro radioelektronické inženýrství, 2012-12)

  A non-blind color image watermarking scheme using principle component analysis, discrete wavelet transform and singular value decomposition is proposed. The color components are uncorrelated using principle component ...

• Current-Mode Universal Filters Employing Single FDCCII 

  Kacar, Firat; Yesil, Abdullah; Kuntman, Hakan (Společnost pro radioelektronické inženýrství, 2012-12)

  In this study, to realize current-mode multifunction filters, three new circuit configurations are presented. The circuits include fully differential current conveyor (FDCCII) and four passive components. First proposed ...

• Novel Feedback Calculation Technique for Improved Transmit Scheme 

  Eksim, Ali; Murat, Ertugrul (Společnost pro radioelektronické inženýrství, 2012-12)

  Extended balanced space-time block coding (EBSTBC) is able to achieve large coding gain and guarantee full diversity for any number of transmit antennas. Performance of the EBSTBC has been improved with improved transmit ...

• Design, Fabrication and Properties of the Multimode Polymer Planar 1 x 2 Y Optical Splitter 

  Prajzler, Vaclav; Pham, Ngoc Kien; Spirkova, Jarmila (Společnost pro radioelektronické inženýrství, 2012-12)

  We report about design, fabrication and measurement of the properties of multimode 1 x 2 optical planar power splitter. The splitters were designed with help of OptiCAD software using ray tracing method. The dimensions of ...

• Large-Signal Simulation of 94 GHz Pulsed Silicon DDR IMPATTs Including the Temperature Transient Effect 

  Acharyya, Aritra; Banerjee, Suranjana; Banerjee, J. P. (Společnost pro radioelektronické inženýrství, 2012-12)

  In this paper large-signal modeling and simulation has been carried to study the frequency chirping due to temperature transients and the large-signal power and efficiency of pulsed silicon Double-Drift Region (DDR) Impact ...

• Optical Control of Millmeter-wave Lateral Double-Drift Region Silicon IMPATT Device 

  Acharyya, Aritra; Banerjee, Suranjana; Banerjee, J. P. (Společnost pro radioelektronické inženýrství, 2012-12)

  The effect of optical illumination on lateral Double-Drift Region (DDR) structure of Silicon Impact Avalanche Transit Time (IMPATT) device is investigated in this paper. The device is designed to operate at mm-wave W-band ...

• Application of Artificial Neural Networks for Efficient High-Resolution 2D DOA Estimation 

  Agatonovic, Marija; Stankovic, Zoran; Doncov, Nebojsa; Sit, Leen; Milovanovic, Bratislav; Zwick, Thomas (Společnost pro radioelektronické inženýrství, 2012-12)

  A novel method to provide high-resolution Two-Dimensional Direction of Arrival (2D DOA) estimation employing Artificial Neural Networks (ANNs) is presented in this paper. The observed space is divided into azimuth and ...

• A Rate-Splitting Based Bound-Approaching Transmission Scheme for the Two-User Symmetric Gaussian Interference Channel with Common Messages 

  Zhang, Bo; Li, Yong; Mao, Lulu; Bai, Baoming (Společnost pro radioelektronické inženýrství, 2012-12)

  This paper is concerned with a rate-splitting based transmission strategy for the two-user symmetric Gaussian interference channel that contains common messages only. Each transmitter encodes its common message into multiple ...

• Subjective Quality Assessment of the Impact of Buffer Size in Fine-Grain Parallel Video Encoding 

  Montero, Pablo; Polak, Ladislav; Taibo, Javier; Kratochvil, Tomas (Společnost pro radioelektronické inženýrství, 2012-12)

  Fine-Grain parallelism is essential for real-time video encoding performance. This usually implies setting a fixed buffer size for each encoded block. The choice of this parameter is critical for both performance and ...

• Utility based Dynamic Subcarrier Allocation for QoS Guarantees in SC-FMDA System 

  Li, Yi-bing; Zhang, Xu; Ye, Fang; Gao, Zhen-guo (Společnost pro radioelektronické inženýrství, 2012-12)

  Two utility based dynamic subcarrier allocation (DSA) algorithms: the max exponential utility (MEU) algorithm and the max weighted exponential utility (MWEU) algorithm are proposed for quality of service (QoS) guarantees ...

• Linear-Combined-Code-Based Unambiguous Code Discriminator Design for Multipath Mitigation in GNSS Receivers 

  Ren, Jiawei; Chen, Huihua; Jia, Weimin; Yao, Minli (Společnost pro radioelektronické inženýrství, 2012-12)

  Unambiguous tracking and multipath mitigation for Binary Offset Carrier (BOC) signals are two important requirements of modern Global Navigation Satellite Systems (GNSS) receivers. A GNSS discriminator design method based ...

• The Distribution of Minimum of Ratios of Two Random Variables and Its Application in Analysis of Multi-hop Systems 

  Stankovic, Ana; Stefanovic, Caslav; Sekulovic, Nikola; Popovic, Zoran; Stefanovic, Mihajlo (Společnost pro radioelektronické inženýrství, 2012-12)

  The distributions of random variables are of interest in many areas of science. In this paper, ascertaining on the importance of multi-hop transmission in contemporary wireless communications systems operating over fading ...

• Solution of Linear Programming Problems using a Neural Network with Non-Linear Feedback 

  Rahman, Syed Atiqur; Ansari, Mohd. Samar; Moinuddin, Athar Ali (Společnost pro radioelektronické inženýrství, 2012-12)

  This paper presents a recurrent neural circuit for solving linear programming problems. The objective is to minimize a linear cost function subject to linear constraints. The proposed circuit employs non-linear feedback, ...

• Design of Multiple Trellis-Coded Multi-h CPM Based on Super Trellis 

  Liu Xian; Liu Aijun; Zhang Bangning; Pan Kegang (Společnost pro radioelektronické inženýrství, 2012-12)

  It has been shown that the multiple trellis code can perform better than the conventional trellis code over AWGN channels, at the cost of additional computations per trellis branch. Multiple trellis coded multi-h CPM schemes ...

• Degenerate RFID Channel Modeling for Positioning Applications 

  Povalac, Ales; Witrisal, Klaus; Sebesta, Jiri (Společnost pro radioelektronické inženýrství, 2012-12)

  This paper introduces the theory of channel modeling for positioning applications in UHF RFID. It explains basic parameters for channel characterization from both the narrowband and wideband point of view. More details are ...

• A Novel OFDM/DQPSK Receiver with Adaptive Remodulation Filter 

  Stosovic, Slavimir; Nikolic, Zorica; Dimitrijevic, Bojan; Antic, Dragan; Milosevic, Nenad (Společnost pro radioelektronické inženýrství, 2012-12)

  The description and performance analysis of a new OFDM/DQPSK signal receiver is considered in this paper. The proposed receiver has performance that is close to the performance for the coherent detection of the OFDM/DQPSK ...

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