title: ÐÐµÑÐ¾Ð´ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¸Ð³Ð½Ð°Ð»ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ ÐÐÐ
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Method of optimization the QAM signal structures
Creators: name: ÐÐ°ÑÑÐ¿Ð¾Ð²Ð°, Ð¡Ð¾ÑÑÑ
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: 2020
Subjects: ÐÐµÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð°Ñ ÑÐ²ÑÐ·Ñ
Ð Ð°Ð´Ð¸Ð¾ÑÐ²ÑÐ·Ñ
ÐÑÐ¸Ð½ÑÑÐ¸Ðµ ÑÐµÑÐµÐ½Ð¸Ð¹
Ð Ð°Ð´Ð¸Ð¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ
Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
ÐÐÐ
Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÑ Ð¾ÑÐ¸Ð±ÐºÐ¸
ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ Ð¿Ð¾Ð´Ñ Ð¾Ð´
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸
QAM
error probability
compensatory approach
optimization coefficient

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description: The work proposes a method of optimization the quadrature amplitude modulation (QAM) signal structures, in which the optimization parameters are the values of signal point quadrature. The objective function provides for limiting the noise immunity of bits, minimizing the signal-to-noise ratio for certain bits or for the whole symbol. Consequently, the proposed method of optimization can also be applied to hierarchical QAM signal structures. The exact formulas for the error probability per bit for the objective function are calculated based on the compensation approach, which was not used for calculating the error probability of the the quadrature amplitude modulation signal structures before. The result of solving the objective function is optimization coefficients that determines the location of signal points. The proposed method makes it possible to optimize signal structures for channels with various interferences, if they can be described analytically. As a result, the application of the proposed method increases.