title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¸Ðº-ÑÐ°ÐºÑÐ¾ÑÐ° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð¿Ð¾Ð¼ÐµÑ Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ Ð¿ÑÐ¸ÑÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² OFDM Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Influence of the Crest Factor Reduction Algorithm by the Precoding Method on the Noise Immunity of Receiving OFDM Signals in a Nonlinear Power Amplifier
Creators: name: ÐÐ°Ð±Ð¸ÐµÐ², ÐÑÐ°Ð½Ð°Ð»Ð¸
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð£ÑÐ¸Ð»Ð¸ÑÐµÐ»Ð¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
Ð¡Ð¸Ð³Ð½Ð°Ð»Ñ
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Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¿Ð¸Ðº-ÑÐ°ÐºÑÐ¾ÑÑ
precoding
peak factors

description: ÐÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ SSPA Ð¸ Ð¾ÑÐµÐ½ÐºÐ° Ð²Ð½Ð¾ÑÐ¸Ð¼ÑÑ Ð¸Ð¼ Ð¸ÑÐºÐ°Ð¶ÐµÐ½Ð¸Ð¹ Ð¿ÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ðµ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¸Ðº-ÑÐ°ÐºÑÐ¾ÑÐ° OFDM ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð². ÐÑÐ»Ð° ÑÐ¾Ð·Ð´Ð°Ð½Ð° Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿ÑÐ¸ÐµÐ¼Ð°-Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° OFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¹ ÑÑÐµÐ´Ðµ Matlab, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ, ÐºÑÐ¸ÑÐµÑÐ¸ÐµÐ¼ Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ¸ÑÑÐµÐ¼, Ð±ÑÐ´ÐµÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ðµ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾Ð¸Ð³ÑÑÑÐ°. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð±ÑÐ» Ð¿ÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð´Ð»Ñ ÑÐ°Ð·Ð½ÑÑ ÑÑÐ½ÐºÑÐ¸Ð¹ Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾Ð¸Ð³ÑÑÑÐ° Ð¾Ñ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ, ÑÐ¼ÐµÑÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÐµÐ¹ ÑÐ¾ÑÐºÐ¸ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¸ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¾Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð²Ð¸Ð´Ð¾Ð² Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð¼Ð¾Ð´ÐµÐ»Ð¸. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð³ÑÐ°ÑÐ¸ÐºÐ¸ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ½Ð¸Ñ Ð¿Ð¸Ðº-ÑÐ°ÐºÑÐ¾ÑÐ° Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÑÐ½ÐºÑÐ¸Ð¹ Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð³ÑÐ°ÑÐ¸ÐºÐ¸ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ð¸ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð°. ÐÐ°Ð»ÐµÐµ, Ð¿Ð¾ÑÐ»Ðµ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¼Ð¾Ð¶Ð½Ð¾ Ð±ÑÐ»Ð¾ Ð¾ÑÐµÐ½Ð¸ÑÑ ÑÑÐµÐ¿ÐµÐ½Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½ÑÑ Ð¸ÑÐºÐ°Ð¶ÐµÐ½Ð¸Ð¹, Ð²Ð½Ð¾ÑÐ¸Ð¼ÑÑ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»ÐµÐ¼ Ð½Ð° Ð¿ÑÐ¸ÐµÐ¼ OFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾Ð±ÑÑÑ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ, Ð´Ð»Ñ ÑÐ¾Ð³Ð¾, ÑÑÐ¾Ð±Ñ Ð¾ÑÐµÐ½Ð¸ÑÑ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¿ÑÐµÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ OFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð².
description: The study of the influence of the power amplifier SSPA and the assessment of the distortions introduced by it when receiving a signal when using the pre-coding method to reduce the crest factor of OFDM signals is carried out. A simulation model of an OFDM signal transmitter-receiver was created using the pre-coding method in the Matlab software environment, as well as a simulation model of a power amplifier. Modeling was carried out, the criterion for assessing the energy efficiency of systems, the value of the energy loss will be used. As a result, an algorithm for reducing the crest factor for different pre-coding functions was demonstrated, and the dependences of the energy loss on the selected amplifier, the offset of the amplifier operating point and the dependence on the use of various types of pre-coding in the model were obtained. As a result of the study, graphs of the distribution of the peak factor were obtained when using various pre-coding functions, as well as graphs of noise immunity when using this algorithm. Further, after using the power amplifier, it was possible to evaluate the degree of influence of nonlinear distortions introduced by the amplifier on the reception of OFDM signals, as well as the overall noise immunity after reducing the peak factor and the power amplifier, in order to evaluate the effectiveness of using various pre-coding methods to reduce crest factor. OFDM signals.