Browsing 2022/1 by Title

Now showing items 1-18 of 18

  • 28 GHz Switched Beam Vivaldi Antenna System for V2V Communication in 5G Applications 

    Ameen, Allam M.; Ahmed, Mohamed, I; Elsadek, Hata; Anis, Wagdy R. (Společnost pro radioelektronické inženýrství, 2022-04)
    A 28GHz switched beam Vivaldi antenna system consisting of 4 Vivaldi antennas for V2V communication is presented. The proposed design is realized on a substrate material of “Rogers 5880” with ε_r=2.2,tanδ=0.002 and 0.508 ...

  • Advanced Features Generation Algorithm for MPSK and MQAM Classification in Flat Fading Channel 

    Kadoun, Iyad; Khaleghi Bizaki, Hossein (Společnost pro radioelektronické inženýrství, 2022-04)
    The Automatic Modulation Classification (AMC) performance depends on the selected features. Conventionally, Higher-Order Cumulants (HOCs) are the well-known features due to their discrimination ability under different ...

  • Classification of Microwave Planar Filters by Deep Learning 

    Vesely, Jiri; Olivova, Jana; Gotthans, Jakub; Gotthans, Tomas; Raida, Zbynek (Společnost pro radioelektronické inženýrství, 2022-04)
    Over the last few decades, deep learning has been considered to be powerful tool in the classification tasks, and has become popular in many applications due to its capability of processing huge amount of data. This paper ...

  • A Dual Band CRLH Metamaterial-Inspired Planar Antenna for Wireless Applications 

    Ashish, Junuthula; Rao, Amara Prakasa (Společnost pro radioelektronické inženýrství, 2022-04)
    This paper presents the design of a metamaterial based dual band dual-polarized monopole antenna applicable for wireless applications. A monopole antenna is designed and loaded with a CRLH MTM inspired unit cell on either ...

  • Fractional Regularized Distorted Born Iterative Method for Permittivity Reconstruction 

    Magdum, Amit; Erramshetty, Mallikarjun; Jagannath, Ravi Prasad K. (Společnost pro radioelektronické inženýrství, 2022-04)
    In this paper, we propose a fractional regularized distorted Born iterative method (DBIM) to solve non-linear ill-posed problems of microwave imaging. Fractional regularization is a modification to Tikhonov regularization, ...

  • Highly Integrated, Very High Gain 20Watt X-Band SSPA in GaN Technology 

    Kant, Przemyslaw; Michalski, Jerzy Julian (Společnost pro radioelektronické inženýrství, 2022-04)
    This paper shows design and development of a highly integrated solid state power amplifier (SSPA) operating in X-Band. The last amplifying stage is realized in GaN technology. For the first time in the high power amplifier, ...

  • Joint Estimation of Direction and Polarization for Partially Polarized Signals Using Tri-polarized Nested Array 

    Pan, Yujian; Gao, Xiaoxin; Xu, Xin (Společnost pro radioelektronické inženýrství, 2022-04)
    Using the dual-polarized array for underdetermined estimation of partially polarized (PP) signal parameters can lead to limited signal-to-ratio (SNR) and biased reconstruction of the coherency matrix. In this paper, a new ...

  • Multiobjective Reinforcement Learning Based Energy Consumption in C-RAN enabled Massive MIMO 

    Sharma, Shruti; Yoon, Wonsik (Společnost pro radioelektronické inženýrství, 2022-04)
    Multiobjective optimization has become a suitable method to resolve conflicting objectives and enhance the performance evaluation of wireless networks. In this study, we consider a multiobjective reinforcement learning ...

  • New Reflector Shaping Methods for Dual-Reflector Antenna 

    Quzwain, Kamelia; Yamada, Yoshihide; Kamardin, Kamilia; Abd Rahman, Nurul Huda; Ismail, Alyani (Společnost pro radioelektronické inženýrství, 2022-04)
    In the fifth-generation (5G) mobile system, new millimeter-wave technologies such as small cell size and multibeam operation are introduced at the base station. Currently, linear array antennas are used at base stations, ...

  • A Novel ICIC Scheme Combining 3D ML-SFR and CoMP 

    Du, Derong; Li, Jing; Ding, Ziyao; Wu, Lingqian; Li, Long; Huang, Shijian (Společnost pro radioelektronické inženýrství, 2022-04)
    With the development of the fifth generation (5G) wireless networks, the dense, heterogeneous and irregular network architecture puts forward higher requirements for inter-cell interference coordination (ICIC) technology. ...

  • On the RSSI-Based Indoor Localization Employing LoRa in the 2.4 GHz ISM Band 

    Simka, Marek; Polak, Ladislav (Společnost pro radioelektronické inženýrství, 2022-04)
    Demand for systems and technologies ensuring indoor localization or tracking of an object with high and stable accuracy is continuously increasing. Nowadays, there are exist several wireless technologies, for instance ...

  • Power Optimization in Device to Device Communications Underlying 5G Cellular Networks 

    Wang, Qianchun; Shen, Xiaobo (Společnost pro radioelektronické inženýrství, 2022-04)
    This paper investigates consumed power minimization and robust beamforming designs in the base station (BTS) in Device to Device (D2D) communications underlying the 5G cellular network. It is supposed that BTS is not aware ...

  • Radome Enclosed Circularly Polarized Antenna System with Enhanced Beamwidth 

    Pradhan, Suman; Gupta, Bhaskar (Společnost pro radioelektronické inženýrství, 2022-04)
    This paper presents a circularly polarized (CP) patch antenna system enclosed by a nosecone radome which has a wide beam response. A U-slot loaded corner truncated patch antenna is mounted upon a conical ground structure ...

  • Research on a Novel Clutter Map Constant False Alarm Rate Detector Based on Power Transform 

    Xu, Bangzhen; Chen, Yiqin; Gu, Hong; Su, Weimin (Společnost pro radioelektronické inženýrství, 2022-04)
    A power transform-based clutter map constant false alarm rate (CM/PT-CFAR) algorithm is proposed to improve the detection performance to the weak target in multiple persisting targets situations. In the CM/PT-CFAR detector, ...

  • Small Size Wideband Monopole Antenna with Five Notch Bands for Different Wireless Applications 

    Bala, Susmita; Reddy, P. Soni; Sarkar, Sushanta; Sarkar, Partha Pratim (Společnost pro radioelektronické inženýrství, 2022-04)
    A broadband planar monopole antenna with five notch bands is proposed here. The antenna provides broadband from 1.94 GHz to 15.4 GHz with five notch bands covering 3.1-4.1 GHz, 6-6.4 GHz, 8.2-9.2 GHz, 10-11.6 GHz, and ...

  • Transmitter IQ Imbalance Mitigation and PA Linearization in Software Defined Radios 

    Jovanovic, Borisav; Milenkovic, Srdan (Společnost pro radioelektronické inženýrství, 2022-04)
    Radio frequency (RF) power amplifiers (PA) are efficiently linearized by adaptive digital predistortion (DPD). However, performance of DPD is severely degraded in presence of transmitter’s frequency-selective in-phase/quadrature ...

  • Two-Propagation-Modes and Dual-Band Antenna for Circular Polarized TX/RX Systems at C-Band 

    Herrero-Sebastian, Ivan; Benavente-Peces, Cesar (Společnost pro radioelektronické inženýrství, 2022-04)
    This paper presents a novel slotted array for dual-band and circular-polarized applications. Two different propagation modes within a Substrate Integrated Waveguide (SIW), TE10 and TE20, feed at the same time two pairs of ...

  • Zero-Chirp and Low Power PAM-4 Modulation Based on SOI Cascaded Multimode Interference Structures 

    Duy Tien Le; Ngoc Minh Nguyen; Trung Thanh Le (Společnost pro radioelektronické inženýrství, 2022-04)
    We present a new architecture for generation of multilevel pulse amplitude modulation (PAM-4) signal generation based on cascaded 4x4 multimode interference (MMI) structure used for optical interconnects and data centre ...