The synchronization of the orthogonal frequency division multiplexing system
Abstract
The results presented research OFDM system synchronization by using one of the basic properties of the continuous Fourier transform, characterized by the duality between a convolution in the time domain, and multiplying the frequency domain, which is not fully extended to the discrete case. For its correct application to the digital system design OFDM linear convolution sampling replaced the circular convolution. This approach reduces the computational analysis synchronization of its complexity and requires the formation of training sequences or pilot data. The result is a matrix that takes into account the deviation of the analyzed samples in the form of random Gaussian processes with zero mean value, allowing to estimate the amplitude of the subcarriers for an arbitrary level of dispersion of random processes.
Keywords
synchronization,
orthogonal,
frequency,
division,
multiplexing,
system,
demodulation,
error,
subcarrier
About the Authors
R. A. Zhernosekov
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
V. T. Pershin
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
References
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Review
For citations:
Zhernosekov R.A., Pershin V.T. The synchronization of the orthogonal frequency division multiplexing system. Doklady BGUIR. 2017;(4):5-11. (In Russ.)
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