QUASIORTHOGONAL FREQUENCY ACCESS ON SUBCARRIER FREQUENCIES

Authors

DOI:

https://doi.org/10.20998/2522-9052.2019.2.22

Keywords:

quasi-orthogonal frequency access on subcarrier frequencie, spectral hole, frequency collisions, bandwidth, frequency plan, an ensemble, the subscriber capacity

Abstract

In the article, it is described the principles of implementing the method based on quasiorthogonal frequency access on subcarrier frequencies. The key element of quasiorthogonal frequency access on subcarrier frequencies is the using of the individual distribution of frequency subcarriers in different frequency plans of the ensemble in the general frequency band, which allows increasing the subscriber capacity of the radio system significantly. It was developed an algorithm for the formation of the ensemble, taking into account the different values of the width of the subchannels in the corresponding frequency plans. It was graphically represented the form of frequency plans with different bandwidths and the dependence of the maximum emissions of the mutual correlation function of frequency plans, taking into account the number of subcarriers and the width of subchannels. For realization the statistical analysis, it was constructe an imitation model of the radio channel, it were graphically represented the results of statistical analysis of the interrelationship properties of frequency plans, and investigated the correlation properties of complex signals based on QOFDM. Using the quasiorthogonal access on subcarrier frequencies allows increasing the subscriber capacity of the communication system and the rate of information transmission due to the nonlinear distribution of the subcarrier frequencies.

Author Biographies

Yuliia Sverhunova, Ukrainian State University of Railway Transport, Kharkiv

Postgraduate student, Department of Transport Communications

Mykola Shtompel, Ukrainian State University of Railway Transport, Kharkiv

Doctor of Technical Sciences, Associate Professor, Chief of Department of Transport Communications

Volodymyr Lysechko, Ukrainian State University of Railway Transport, Kharkiv

Candidate of Technical Sciences, Associate Professor, Associate Professor of Department of Transport Communications

Iryna Kovtun, Ukrainian State University of Railway Transport, Kharkiv

Candidate of Technical Sciences, Associate Professor, Associate Professor of Department of Transport Communications

References

Lysechko, V.P., Kornilova, S.Yu. and Ukhova, Ye.A. (2012), “Investigation of Frequency Resource Distribution Methods in Cognitive Radio Networks”, Collection of Scientific Papers of Kharkiv University of Air Forces, No. 1 (31), pp. 137-145.

Mitola, J. and Maguire, G.Q. (1999), “Cognitive Radio : Making Software Radios More Personal”, IEEE Pers. Commun., vol. 6, no. 4, Aug. 1999, pp. 173-185.

Shimkiv, M.V., Lysechko, V.P., Progonny, O.M. and Gumenyuk, A.V. (2013),”Method of monitoring spectrum on the basis of digital harmonized filtering”, Bulletin of the National Technical University. Engineering and Electrophysics of High Voltages, NTU "KhPI", No. 60 (1033), pp. 127–135.

Lysechko, V.P. (2005), “The method of forming ensembles of complex signals based on sequences with minimal energy interaction”, Armament and military equipment systems, No. 1 (1), pp. 65–68.

Amin Salih M. and Potrus M.Y. (2015), “A Method for Compensation of Tcp Throughput Degrading During Movement Of Mobile Node”, ZANCO Journal of Pure and Applied Sciences, Vol. 27, No 6, pp. 59–68.

Cherneva, G. and Dimkina, E. (2011), “An Invariance of the Performance of Noise-Resistance of Spread Spectrum Signals”, Proceedings of the 9th International Journal on Marine Navigation and Safety of Sea Transportation, vol. 5, No. 2, Poland, pp. 183–186.

Dhivakar, B., Saravanan, S.V., Sivaram, M. and Krishnan R.A. (2012), “Statistical Score Calculation of Information Retrieval Systems using Data Fusion Technique”, Computer Science and Engineering, Vol. 2, Issue 5, pp.43-45, doi: http://doi.org/10.5923/j.computer.20120205.01

Lysechko, V.P. and Kharchenko, V.N. (2004), “The method of dealing with intra-system radio interference”, Collection of scientific papers of the KhVU, KhVU, No. 2(30), Kharkiv, pp. 232–237.

Kuchuk, G., Nechausov, S. and Kharchenko, V. (2015), “Two-stage optimization of resource allocation for hybrid cloud data store”, International Conference on Information and Digital Technologies, Zilina, pp. 266-271, DOI: http://dx.doi.org/10.1109/DT.2015.7222982

Ruban, I., Kuchuk, H. and Kovalenko A. (2017), “Redistribution of base stations load in mobile communication networks”, Innovative technologies and scientific solutions for industries, No 1 (1), P. 75–81, doi :

https://doi.org/10.30837/2522-9818.2017.1.075

Sivaram, M., Yuvaraj, D., Amin Salih, Mohammed, Porkodi, V. and Manikandan V. (2018), “The Real Problem Through a Selection Making an Algorithm that Minimizes the Computational Complexity”, International Journal of Engineering and Advanced Technology, Vol. 8, iss. 2, pp. 95-100.

Kovalenko, А. and Kuchuk H. (2018), “Methods for synthesis of informational and technical structures of critical application object’s control system”, Advanced Information Systems, Vol. 2, No. 1, pp. 22–27, DOI: https://doi.org/10.20998/2522-9052.2018.1.04

Sviridov, A., Kovalenko, A. and Kuchuk, H. (2018), “The pass-through capacity redevelopment method of net critical section based on improvement ON/OFF models of traffic”, Advanced Information Systems, Vol. 2, No. 2, pp. 139–144, DOI: https://doi.org/10.20998/2522-9052.2018.2.24

Kuchuk, G., Kovalenko, A., Komari, I.E., Svyrydov, A. and Kharchenko, V. (2019), “Improving big data centers energy efficiency: Traffic based model and method”, Studies in Systems, Decision and Control, vol 171, Springer Nature Switzerland AG, pp. 161–183, DOI: http://doi.org/10.1007/978-3-030-00253-4_8

Svergunova, Yu.O., Lysechko, V.P. and Easy, D.O. (2015), “Method of Quasiorthogonal Frequency Multiplexing at Higher Frequencies”, Information and Control Systems for Rail Transport, No. 2 (111), pp. 75–79.

Lysechko. V.P., Stepanenko, Yu.G. , Sopronyuk, І.І. and Bruzgina, N.O. (2010), “Investigation of the spectrum analysis methods in cognitive radio networks”, Collection of scientific works of the Kharkiv University of Air Forces, No. 3 (25), pp. 137–145.

Amin Salih, M., Yuvaraj, D., Sivaram, M. and Porkodi, V. (2018), “Detection And Removal Of Black Hole Attack In Mobile Ad Hoc Networks Using Grp Protocol”, International Journal of Advanced Research in Computer Science, Vol. 9, No 6, pp. 1–6, DOI: http://dx.doi.org/10.26483/ijarcs.v9i6.6335

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Applied problems of information systems operation