空间复用系统的扩展正交反馈预编码

Q4 Materials Science

Radioelektronika, Nanosistemy, Informacionnye Tehnologii Pub Date : 2023-09-28 DOI:10.17725/rensit.2023.15.235

Mikhail G. Bakulin, Vitaly B. Kreyndelin, Andrey A. Reznev

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引用次数: 0

摘要

为了提高具有大量发射天线和接收天线的MIMO通信系统的抗噪能力，研究了各种空时编码和代数结构的生成方法。在MIMO系统中，利用从发射机到接收机的反馈，根据无线电信道中不断变化的接收条件，产生正交预编码矩阵的可能性。结果表明，要在具有4×4、8×8、16×16天线配置的MIMO系统中传输这种预编码矩阵，需要反馈，并且能够在1.5 dB的能量增益下仅在反向链路上传输2位。2.5 dB与开环系统相比。本文所得到的预编码矩阵及其形成算法可用于新型MIMO移动通信系统的开发。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Extended orthogonal feedback precoding for spatial multiplexing systems

Various methods of generating of space-time codes and algebraic structures for increasing noise immunity of MIMO communication systems with a large number of transmitting and receiving antennas are considered. The possibility of generation of an orthogonal precoding matrix in MIMO systems depending on changing reception conditions in a radio channel using feedback from a transmitter to a receiver is shown. It is obtained that to transmit such a precoding matrix in MIMO systems with 4×4, 8×8, 16×16 antenna configurations, feedback is required with the ability to transmit only 2 bits on the reverse link at an energy gain of 1.5 dB ... 2.5 dB compared to an open loop system. The precoding matrices obtained in the article and their formation algorithms can be used in the development of new MIMO mobile communication systems.

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来源期刊

Radioelektronika, Nanosistemy, Informacionnye Tehnologii Materials Science-Materials Science (miscellaneous)

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： Journal “Radioelectronics. Nanosystems. Information Technologies” (abbr RENSIT) publishes original articles, reviews and brief reports, not previously published, on topical problems in radioelectronics (including biomedical) and fundamentals of information, nano- and biotechnologies and adjacent areas of physics and mathematics. The authors of the journal are academicians, corresponding members and foreign members of the Russian Academy of Natural Sciences (RANS) and their colleagues, as well as other russian and foreign authors on the proposal of the members of RANS, which can be obtained by the author before sending articles to the editor or after its arrival on the recommendation of a member of the editorial board or another member of the RANS, who gave the opinion on the article at the request of the editior. The editors will accept articles in both Russian and English languages. Articles are internally peer reviewed (double-blind peer review) by members of the Editorial Board. Some articles undergo external review, if necessary. Designed for researchers, graduate students, physics students of senior courses and teachers. It turns out 2 times a year (that includes 2 rooms)