Symbol-Level Precoding for Multiuser Multiple-Input-Single-Output Downlink Systems With Low-Resolution DACs

被引：8

作者：

Chen, Chiao-En ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Elect Engn, Taichung 402, Taiwan

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2022年 / 71卷 / 02期

关键词：

Precoding; Radio frequency; Convex functions; Transmitting antennas; Power demand; Error analysis; Optimization; Alternating direction method of multipliers (ADMM); low-resolution digital-to-analog converter (DAC); multiple-input-single-output (MISO) system; quantized precoder; MIMO; TRANSMISSION;

D O I：

10.1109/TVT.2021.3131478

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Driven by the demand of building power-efficient next generation cellular systems, transmission schemes that facilitate the use of low-resolution digital-to-analog converters (DACs) have drawn great research attentions lately. In this correspondence, we investigated symbol-level precoding for multiuser multiple-input-single-output downlink systems with low-resolution DACs. A new alternative direction method of multipliers (ADMM) precoder is proposed for systems deploying low resolution b-bit DACs where b >= 2. The precoder can be considered an extension of existing 1-bit ADMM precoders. The precoder is observed to achieve the best error performance in simulations compared with other state-of-the-art counterparts.

引用

页码：2116 / 2121

页数：6

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