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TERAHERTZ WAVES APPLICATION FOR RADIO LINK BUILDING WITH GIGABIT THROUGHPUT: INNOVATIVE SOLUTIONS AND RESEARCH RESULTS
Authors
T.N. NARYTNYK
Research Institute of Telecommunications, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
G.L. AVDEYENKO
Research Institute of Telecommunications, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
O.V. MAY
Research Institute of Telecommunications, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Abstract
The results of the completed studies conducted by the author's team during the 25-year period the possibilities of creating for the first time in Ukraine the real prerequisites for solving the fundamental problem of the construction of digital telecommunication systems with the use of terahertz technologies are presented. The necessity of the transition to the use of terahertz frequency range when deploying future telecom systems with ultrahigh bandwidth is shown. The main factors that lead to the emergence of fading in radio relay communication lines are considered. It is shown that in the terahertz range the greatest influence on the energy potential of the radio-relay lines is attenuating in hydrometeors and gases. It is shown terahertz frequency range areas that are most suitable for use in radio relay communication lines. The principles of formation of signal-code design are considered. Methods and new technical solutions for choosing the type of signal construction are proposed in order to achieve the best performance in wireless communication of in the terahertz range. The results of functional design, simulation and experimental research of the receiving and transmitting paths of a telecommunication system with a gigabit throughput in the frequency range 130-134 GHz are presented. A simplex digital radio relay system in the 130-134 GHz band prototype with digital modem was designed. It provides channel throughput up to 1200 Mbit/s within 1 km. The concept of creating a software-defined radio technology based on Wi-Fi, can be used in high-performance transport distribution networks of the next generation mobile communications to ensure proper transmission speeds, reliability and security. Tests of transmission of digital television standard DVB-C over the 130 GHz path were successful.
