On the Spectral Efficiency of Massive MIMO Systems With Low-Resolution ADCs

被引：208
|
作者：
Zhang, Jiayi [1 ]
Dai, Linglong [2 ,3 ]
Sun, Shengyang [2 ,3 ]
Wang, Zhaocheng [2 ,3 ]
机构：
[1] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol TNList, Beijing 100084, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 05期
基金：
北京市自然科学基金; 对外科技合作项目（国际科技项目）; 中国国家自然科学基金;
关键词：
Analog-to-digital convertor (ADC); massive MIMO; Rician fading channels; spectral efficiency;
D O I：
10.1109/LCOMM.2016.2535132
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The low-resolution analog-to-digital convertor (ADC) is a promising solution to significantly reduce the power consumption of radio frequency circuits in massive multiple-input multiple-output (MIMO) systems. In this letter, we investigate the uplink spectral efficiency (SE) of massive MIMO systems with low-resolution ADCs over Rician fading channels, where both perfect and imperfect channel state information are considered. By modeling the quantization noise of low-resolution ADCs as an additive quantization noise, we derive tractable and exact approximation expressions of the uplink SE of massive MIMO with the typical maximal-ratio combining (MRC) receivers. We also analyze the impact of the ADC resolution, the Rician K-factor, and the number of antennas on the uplink SE. Our derived results reveal that the use of low-cost and low-resolution ADCs can still achieve satisfying SE in massive MIMO systems.
引用
收藏
页码：842 / 845
页数：4
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