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AN IMPACT OF THE EFFECT OF INTENTIONAL JAMMING ON A COMMUNICATION SYSTEM BASED ON SIMPLEX CODES
DOI: 10.36724/2072-8735-2020-14-7-13-19
Vitaliy S. Kuznetsov, National Research University of Electronic Technology, National Research University of Electronic Technology, Moscow, Zelenograd, Russia, vitaliy_kuznetsov@hotmail.com
Alexey S. Volkov, National Research University of Electronic Technology, National Research University of Electronic Technology, Moscow, Zelenograd, Russia, leshvol@mail.ru
Alexey V. Solodkov, National Research University of Electronic Technology, National Research University of Electronic Technology, Moscow, Zelenograd, Russia, solodkov_aw@mail.ru
Ilia V. Chugunov, National Research University of Electronic Technology, National Research University of Electronic Technology, Moscow, Zelenograd, Russia, ivchugunov2016@gmail.com
Abstract
Existing radiocommunication systems, used in government structures and special area, constitute a set of disparate systems, which cannot be used as a unified radiocommucation system. The main disadvantage of these systems is a requirement of the base station, which implies a need of centralized structure of wireless network with a base station. This point is true in the context of naturally limited radio visibility, because in the event of loss of connection with a base station individual subscribers lose the opportunity to transmit messages to other subscribers of this radio network. It is also worth mentioning that it is possible to create conditions for the artificially restricted access for subscribers to the radio environment, caused by a jammer’s intentional impacts on the base station. This article features implementation of a multiuser system without static base station in the topology of the proposed system’s network. It contains a description of the frame structure and the data packet of the proposed communication system with the direct spread spectrum and the time division multiple access. Impact of broadband, narrowband and pulse jamming on characteristics of the communication system was evaluated. As a result we managed to establish the relationship between the error probability out of decoder and the correlation of the chip’s energy pseudorandom sequence to noise energy under the influence of a narrowband jamming with various amplitudes and pulse jamming of different duty cycle on the signal. We also suggested some recommendations for the implementation of such systems to increase the antijamming ability of described types of jamming.
Keywords: multi-station access, mobile ad hoc networks, MANET, DSSS, CDMA.
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Information about authors:
Vitaliy S. Kuznetsov, Professor of the Department of Telecommunications, National Research University of Electronic Technology, Moscow, Zelenograd, Russia
Alexey S. Volkov, assistant professor of the Department of Telecommunications, National Research University of Electronic Technology, Moscow, Zelenograd, Russia
Alexey V. Solodkov, associated professor of the Department of Telecommunications, National Research University of Electronic Technology, Moscow, Zelenograd, Russia
Ilia V. Chugunov, graduate student of the Department of Telecommunications, National Research University of Electronic Technology, Moscow, Zelenograd, Russia