单片机系统的新型母星座

IF 0.4 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
M. G. Bakulin, T. B. K. Ben Rejeb, V. B. Kreyndelin, D. Yu. Pankratov, A. E. Smirnov
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引用次数: 0

摘要

摘要--解析码多址接入(SCMA)是非正交多址接入(NOMA)技术的一种变体。SCMA 通信系统使用基于多维星座的编码本,这些星座由原始母星座生成。这些星座的特性在很大程度上决定了 SCMA 通信系统的效率。本文提出了用于 SCMA 系统的新母星座。所提议的星座是用一种新的分析方法合成的,该方法以信号对二进制变量向量的函数依赖关系的形式描述表格函数。这种表示方法可以揭示一些模式,并确定影响其使用效率的星座特征。特别是,我们提出了一种具有参数描述的新型二维星座,称为箭头星座。所提出的星座属于多维星座,既可独立使用,也可用于 SCMA 系统中的码本合成。在带有涡轮接收器的 SCMA 系统中,解调器和解码器使用相同的反馈,使用这些星座的效果最佳。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

New Kind of Mother Constellation for SCMA Systems

New Kind of Mother Constellation for SCMA Systems

Abstract—Sparse code multiple access (SCMA) is a variation of the nonorthogonal multiple access (NOMA) technology. SCMA communication systems use codebooks based on multidimensional constellations, which are generated using original mother constellations. The properties of these constellations largely determine the efficiency of SCMA communication systems. This paper proposes new mother constellations for use in SCMA systems. The proposed constellations were synthesized using a new analytical method for describing tabular functions in the form of a functional dependence of the signal on the vector of binary variables. This representation made it possible to reveal some patterns and determine the characteristics of constellations that affect the efficiency of their use. In particular, a new type of two-dimensional constellation with a parametric description, called Arrow constellations, is proposed. The proposed constellations belong to the class of multidimensional constellations and can be used both independently and in codebook synthesis in SCMA systems. The best effect from using these constellations is observed in SCMA systems with a turbo receiver, in which both the demodulator and the decoder are operated with the same feedback.

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来源期刊
CiteScore
1.00
自引率
20.00%
发文量
170
审稿时长
10.5 months
期刊介绍: Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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