Interference immunity and energy efficiency of digital communications systems in multipath channel with fading
Tashatov N.N. Seksembayeva M.A. Ovechkin G.V. Satybaldina D. Seitkulov Y.N.
September 2022Institute of Advanced Engineering and Science
Indonesian Journal of Electrical Engineering and Computer Science
2022#27Issue 31412 - 1418 pp.
In the study of measures to improve channel efficiency, we developed and presented a performance analysis of a digital communication system for image transmission in a multipath channel with fading, in the MATLAB/Simulink environment, one of the main advantages being that it provides high interference immunity in the presence of noise and interference and signal delays. The scheme has been investigated for bit error rate (BER) on additive white Gaussian noise (AWGN) channel and multipath Rice and Rayleigh fading channel operating under the influence of inter-symbol interference (hereinafter ISI) and different parameters for the channel, where we considered cases of signal delay similar for EPA (extended pedestrian a model (EPA) standards). In this paper, we estimate the effectiveness of compensation for signal distortion in radio channels with fading on the basis coded orthogonal frequency-division multiplexing (COFDM) technology, an adaptive equalizer, amplifiers on the transmitter side and a normalizer on the receiver side, which is an acute problem in the field of wireless communication. This system can be applied to transmit better quality high-resolution radiological images over a wireless network inside a building and for a model analogous of pedestrian traffic.
Bose–Chaudhuri–hocquenghem codes , Coded orthogonal frequency-division multiplexing , Least mean squares algorithms , Low-density parity-check code , Multipath channel with fading extended pedestrian a model , Orthogonal frequency-division multiplexing
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Department of Computer and Software Engineering, Faculty of Information Technology, L. N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Department of Computational and Applied mathematics, Faculty of Computer Science, Ryazan State Radio Engineering University, Ryazan, Russian Federation
Department of Information Security, Faculty of Information Technology, L. N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Institute of Information Security and Cryptology of L. N. Gumilyov Eurasian National University, Nur-Sultan, Kazakhstan
Department of Computer and Software Engineering
Department of Computational and Applied mathematics
Department of Information Security
Institute of Information Security and Cryptology of L. N. Gumilyov Eurasian National University
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