title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° GFDM Ð¼Ð¾Ð´ÐµÐ¼Ð° Ð½Ð° Ð±Ð°Ð·Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾-Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÐ¼Ð¾Ð¹ ÑÐ°Ð´Ð¸Ð¾Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development of a GFDM-modem on a software-defined radio platform basis
Creators: name: ÐÐ¾ÐºÑÐ¸Ð¾Ð½Ð¾Ð², ÐÐ°ÐºÑÐ¸Ð¼
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: 2022
Subjects: Ð¿ÑÐ¾Ð³ÑÐ¼Ð¼Ð½Ð¾-Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÐ¼Ð¾Ðµ ÑÐ°Ð´Ð¸Ð¾
Ð¼Ð¾Ð´ÐµÐ¼
software-defined radio
modem

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ GFDM-Ð¼Ð¾Ð´ÐµÐ¼, Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð½ÑÐ¹ Ð½Ð° Ð±Ð°Ð·Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾-Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÐ¼Ð¾Ð¹ Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ National Instruments USRP 2920. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° GFDM-Ð¼Ð¾Ð´ÐµÐ¼Ð° Ð½Ð° Ð±Ð°Ð·Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÐ¼Ð¾Ð¹ ÑÐ°Ð´Ð¸Ð¾Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ. Ð¦Ð¸ÑÑÐ¾Ð²Ð°Ñ ÑÑÐµÐ¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ GFDM ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð² ÑÑÐ´Ðµ Ð½Ð°ÑÑÐ½ÑÑ Ð¿ÑÐ±Ð»Ð¸ÐºÐ°ÑÐ¸Ð¹ Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ ÐºÐ°Ð½Ð´Ð¸Ð´Ð°ÑÐ° Ð½Ð° ÑÐ¾Ð»Ñ OFDM Ð² Ð±ÑÐ´ÑÑÐ¸Ñ Ð¿Ð¾ÐºÐ¾Ð»ÐµÐ½Ð¸Ñ ÑÐ²ÑÐ·Ð¸, ÑÑÐ¾ Ð´ÐµÐ»Ð°ÐµÑ Ð´Ð°Ð½Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ»Ð¸ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ, Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐµ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ GFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð². ÐÑÐ» Ð²ÑÐ±ÑÐ°Ð½ Ð²ÑÑÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼, Ð² Ð¾ÑÐ½Ð¾Ð²Ðµ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð»ÐµÐ¶Ð°Ñ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸. Ð ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ Ð²ÑÐ±ÑÐ°Ð½Ð½ÑÐ¼ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð¼ Ð±ÑÐ»Ð° ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°ÑÐµÐ»Ñ GFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¿Ð°ÐºÐµÑÐµ MATLAB, Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐ¿ÐµÐºÑÑÐ° ÑÐ¸Ð³Ð½Ð°Ð»Ð° ÑÐ¾ ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ OFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð° ÑÐ¾ ÑÑÐ¾Ð¶Ð¸Ð¼Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ð¼Ð¸, Ð² ÑÐ¾Ð´Ðµ ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð±ÑÐ»Ð¾ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÐ¿ÐµÐºÑÑ GFDM-ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð¾Ð±Ð»Ð°Ð´Ð°ÐµÑ Ð¼ÐµÐ½ÑÑÐ¸Ð¼ ÑÑÐ¾Ð²Ð½ÐµÐ¼ Ð²Ð½ÐµÐ¿Ð¾Ð»Ð¾ÑÐ½ÑÑ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ð¹. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ñ Ð¿ÑÐ¸ÐµÐ¼Ð° GFDMÑÐ¸Ð³Ð½Ð°Ð»Ð°, Ð´Ð»Ñ Ð±Ð¾ÑÑÐ±Ñ Ñ Ð¼ÐµÐ¶ÐºÐ°Ð½Ð°Ð»ÑÐ½Ð¾Ð¹ Ð¸Ð½ÑÐµÑÑÐµÑÐµÐ½ÑÐ¸ÐµÐ¹ Ð² Ð±Ð»Ð¾ÐºÐµ Ð´ÐµÐ¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ° Ð±ÑÐ» Ð¸Ð¼Ð¿Ð»ÐµÐ¼ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð¸ÑÐµÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÑÑÑÐ°Ð½ÐµÐ½Ð¸Ñ Ð¸Ð½ÑÐµÑÑÐµÑÐµÐ½ÑÐ¸Ð¸ (IIC), ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð´Ð¾Ð±Ð¸ÑÑÑÑ Ð±ÐµÐ·Ð¾ÑÐ¸Ð±Ð¾ÑÐ½Ð¾Ð¹ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð² Ð¸Ð´ÐµÐ°Ð»ÑÐ½Ð¾Ð¼ ÐºÐ°Ð½Ð°Ð»Ðµ Ð±ÐµÐ· ÑÑÐ¼Ð¾Ð². Ð¢Ð°ÐºÐ¸Ð¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼, Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ð¸ GNU Radio Ð±ÑÐ» ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½ ÑÐ°Ð±Ð¾ÑÐ¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½ÑÐ¹ GFDM-Ð¼Ð¾Ð´ÐµÐ¼, ÑÑÐ¾ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ¶Ð´Ð°ÐµÑÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð¼Ð¸ Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐµÐ¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð² ÑÐµÐ°Ð»ÑÐ½Ð¾Ð¼ Ð±ÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾Ð¼ ÐºÐ°Ð½Ð°Ð»Ðµ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼.
description: The object of study is a multi-carrier GFDM modem built on the basis of the National Instruments USRP 2920 software-defined platform. The purpose of the graduate qualification work is to develop a GFDM modem based on a software-defined radio platform. GFDM digital modulation scheme is recently being discussed as a candidate for the role of OFDM for future wireless communication systems, which makes this technology promising for research. To achieve the goal of this work, an analysis of the literature was carried out, and various methods for generating GFDM signals were studied. A computationally efficient algorithm which is based on transformations in the frequency domain was chosen. In accordance with the chosen algorithm, the GFDM modulator model was implemented in the MATLAB software package, the signal spectrum was compared with the OFDM signal spectrum with similar parameters, it was found that the GFDM signal spectrum has a lower level of out-of-band emissions. Methods for receiving a GFDM signal were also considered, to combat intercarrier interference in the demodulator unit, an iterative interference cancelation (IIC) algorithm was implemented, which allows for errorfree transmission of information in an ideal channel without noise. Thus, an efficient GFDM modem was implemented in the GNU Radio software toolkit, which is confirmed by experiments with the transmission of information in a real wireless channel, and by simulation modeling as well.