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FULL DUPLEX POWER LINE TRANSMISSION SYSTEM.
CONCEPT OF CONSTRUCTION AND PROBLEMS OF ORGANIZING ANALOG COMPENSATION
Eugeniy V. Rogozhnikov, Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia, udzhon@mail.ru
Edgar M. Dmitriev, Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia, edegor1993@mail.ru
Renat R. Abenov, Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia, renat.abenov@tusur.ru
Abstract
This article presents the advantages and disadvantages of analog signal compensation methods when using full-duplex communication technology in power line transmission systems. The development of full-duplex communication technology is a promising direction in the field of telecommunications, as in the conditions of the rapid development of telecommunication systems, methods of increasing the spectral efficien-cy of communication systems are becoming increasingly important. This article discusses the main benefits of full-duplex communication technology. Presented prerequisites for the use of this technology for data transmission over power lines. Namely, in the data transmission systems through the power supply circuits, the limited frequency range is free, therefore the application of full-duplex communication technology is an actual task at the moment. The concept of building a full duplex data transmission system is described. The main problems of the implementation of this data transmission system are considered, namely the imple-mentation of signal compensation between the transmitter and the receiver, the powers of which can vary by hundreds of decibels. An analog compensation method using a tunable phase shifter and attenuator, a signal compensation method using a 2-channel digital-to-analog converter, and a method using a balancing trans-former are described. The problems of implementation of analog compensation methods in full-duplex communication technology are considered. The achievable level of compensation is described in theory and practice. Produced by mathematical modeling of a full-duplex communication system with an analog com-pensation methods described. An experimental study was conducted, as a result of which the main factors affecting the level of analog compensation were identified.
Keywords: full-duplex communication, analog compensation, power lines, data transmission system, OFDM, phase shifter, attenuator, balancing transformer, digital-analog converter, circulator.
References
1. Nikopour, H., Yi, E., Bayesteh, A., Au, K., Hawryluck, M., Baligh, H., & Ma, J. (2014, December), «SCMA for downlink multiple access of 5G wireless networks», In 2014 IEEE Global Communica-tions Conference, pp. 3940-3945.
2. Saito, Y., Kishiyama, Y., Benjebbour, A., Nakamura, T., Li, A., & Higuchi, K. (2013, June), «Non-orthogonal multiple access (NOMA) for cellular future radio access», In 2013 IEEE 77th vehicular technology conference (VTC Spring), pp. 1-5
3. Bellanger, M., LeRuyet, D., Roviras, D., Terre, M., Nossek, J., Baltar, L., Viholainen, A. (2013), FBMC physical layer: a primer, PHYDYAS, vol. 25(4), pp. 7-10.
4. Jain, M., Choi, J. I., Kim, T., Bharadia, D., Seth, S., Srinivasan, K., Sinha, P. (2011, September), «Practical, real-time, full duplex wireless», In Proceedings of the 17th annual international conference on Mobile computing and networking, pp. 301-312.
5. Duche, D. N., & Gogate, V. (2014), Power Line Communication Performance Channel Characteristics. Computer Engineering and Applications Journal, vol. 3(1), pp. 34-42.
Information about authors:
Eugeniy V. Rogozhnikov, Associate professor of the Department of Telecommunications and Basics of Radioengineering at the Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
Edgar M. Dmitriev, Assistant of the Department of Telecommunications and Basics of Radioengineering at the Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
Renat R. Abenov, Senior Lecturer of the Department of Telecommunications and Basics of Radioengineering at the Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia