Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2021. №12
ContentsFull text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2021.12.2
UDC: 621.391.01
ITERATIVE ALGORITHM OF SYMBOL-BY-SYMBOL RECEPTION OF OFDM SIGNAL CONSTRUCTIONS IN THE PRESENCE OF SPECTRUM-CONCENTRATED INTERFERENCE
L. E. Nazarov
Kotelnikov IRE RAS, Fryazino branch
Vvedensky Sq. 1, Fryazino, 141120, Russia
The paper was received December 7, 2021
Abstract. The article describes the results of an iterative algorithm for symbol-by-symbol receiving signal structures based on signals with orthogonal frequency multiplexing, pseudorandom sequences and error-correcting low-density codes. The results of emulation this iterative reception algorithm for the signal structures in the presence of channel concentrated interferences are given and the stability of signal structures to the distorting influence of the considered class of interference is shown. It is shown that a signal design based on a low-density code in combination with an iterative algorithm for symbol-by-symbol reception is more effective with respect to noise immunity compared to a convolutional code in combination with a Viterbi reception algorithm implementing the maximum likelihood rule.
Key words: OFDM signals, symbol-by-symbol reception, narrow-band noise, LDPC codes, noise reduction.
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For citation:
Nazarov L.E. Iterative algorithm of symbol-by-symbol reception of OFDM signal constructions in the presence of spectrum-concentrated interference. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2021. №12. https://doi.org/10.30898/1684-1719.2021.12.2 (In Russian)