Downlink Achievable Rate Analysis in Massive MIMO Systems With One-Bit DACs

被引：87

作者：

Li, Yongzhi ^{[1
]}

Tao, Cheng ^{[1
]}

Swindlehurst, A. Lee ^{[2
,3
]}

Mezghani, Amine ^{[2
]}

Liu, Liu ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Inst Broadband Wireless Mobile Commun, Beijing 100044, Peoples R China

[2] Univ Calif Irvine, Ctr Pervas Commun & Comp, Irvine, CA 92697 USA

[3] Tech Univ Munich, Inst Adv Study, D-80333 Munich, Germany

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 07期

基金：

北京市自然科学基金; 美国国家科学基金会;

关键词：

Massive MIMO; one-bit quantization; downlink rate; MF precoding;

D O I：

10.1109/LCOMM.2017.2687871

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, we investigate the downlink performance of massive multiple-input multiple-output (MIMO) systems where the base station is equipped with one-bit analog-to-digital/digital-to-analog converters (ADC/DACs). We assume that the base station employs the linear minimum mean-squared-error channel estimator and treats the channel estimate as the true channel to precode the data symbols. We derive an expression for the downlink achievable rate for matched-filter precoding. A detailed analysis of the resulting power efficiency is pursued using our expression of the achievable rate. Numerical results are presented to verify our analysis. In particular, it is shown that, compared with conventional massive MIMO systems, the performance loss in one-bit massive MIMO systems can be compensated for by deploying approximately 2.5 times more antennas at the BS.

引用

页码：1669 / 1672

页数：4

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