title: ÐÐ½Ð°Ð»Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¸ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½ÑÑ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾Ð¼ÐµÑ Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾Ð³Ð¾ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ
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: Analysis of the possibility of increasing the spectral and energy efficiency of multi-frequency signals using forward error-correction code
Creators: name: Ð¥Ð¾Ð½Ð´ÑÐ°, ÐÐ½Ð´ÑÐµÐ¹
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: 2024
Subjects: Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
LDPC
ÐÐ°Ð½Ð°Ð»Ñ Ñ Ð·Ð°Ð¼Ð¸ÑÐ°Ð½Ð¸ÑÐ¼Ð¸
ZF-ÑÐºÐ²Ð°Ð»Ð°Ð¹Ð·ÐµÑ
ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½Ð°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
multi-frequency signals
Fading channels
ZF equalizer
spectral efficiency
energy efficiency

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description: The object of study is a simulation model for determining the spectral and energy efficiency of multi-frequency signals. The subject of research is spectral and energy efficiency of multi-frequency signals in the presence of forward error-correction code. The purpose of the study is estimation of the possibility of increasing the spectral and energy efficiency of multi-frequency signals using LDPC encoding. This work is devoted to the study of the influence of forward error-correction code and frequency-selective channels on the spectral and energy characteristics of multi-frequency signals. In the course of the work, a model was developed for the formation and transmission of multi-frequency signals with LDPC encoding in various channels with 2 receiver algorithms to determine the spectral and energy characteristics of the signals, and a comparison was made with OFDM at fixed values of spectral efficiency and various compression factors and coding rate values for rectangular and sinusoidal envelopes. The study was implemented in the Matlab simulation environment.