Open AccessImproving the effectiveness of the multi-frequency signals application under conditions of amplitude limitation
Author(s) -
Duc-Trong Nguyen,
Sergey V. Zavjalov,
Anna S. Ovsyannikova,
Canh Minh Nguyen
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1326/1/012028
Subject(s) - amplifier , computer science , limiter , limit (mathematics) , transmission (telecommunications) , limiting , signal (programming language) , amplitude , electronic engineering , signal to noise ratio (imaging) , transceiver , bit error rate , power (physics) , telecommunications , electrical engineering , mathematics , physics , wireless , engineering , bandwidth (computing) , optics , decoding methods , mechanical engineering , mathematical analysis , quantum mechanics , programming language
In this paper, simulation modelling of information transmission using spectrally efficient multi-frequency (SEFDM) signals with an amplifier and a limiter on transmission has been held. SEFDM signals have a high peak-to-average power ratio (PAPR). Therefore, we need to limit the value of PAPR to increase the efficiency of the amplifier stages of transceiver devices. An effective value for PAPR limiting has been found. For signal-to-noise ratio 7 dB, level of bit error rate reaches minimum value when the PAPR limit value is within 4.5-5.5 dB. Besides that, a comparison of the effectiveness of detection algorithms with and without feedback has been made. The results showed that detection algorithm with feedback increases the effectiveness of the multi-frequency signals application under conditions of amplitude limitation.