Use of 1-bit digital-to-analogue converters in massive MIMO systems

被引：35
|
作者：
Guerreiro, J. [1 ]
Dinis, R. [1 ]
Montezuma, P. [2 ]
机构：
[1] Univ Nova Lisboa, FCT, Inst Telecommun, P-1200 Lisbon, Portugal
[2] Univ Nova Lisboa, FCT, UNINOVA, P-1200 Lisbon, Portugal
来源：
ELECTRONICS LETTERS | 2016年 / 52卷 / 09期
关键词：
digital-analogue conversion; MIMO systems; digital-to-analogue converters; massive MIMO systems; multiple-input multiple-output systems; nonlinear distortion effects; low-complexity maximum ratio transmission technique; transmit antennas; word length 1 bit;
D O I：
10.1049/el.2015.4037
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：
Massive multiple-input multiple-output (MIMO) systems are being proposed for next generation broadband wireless systems. However, as the complexity of implementation grows with the number of antenna elements, their feasibility is a challenging task. Consider very low complexity, 1-bit digital-to-analogue converters (DACs) for the downlink of massive MIMO systems. The impact of the resultant severe non-linear distortion effects is analysed when a low-complexity maximum ratio transmission technique is employed for user separation. The non-linear distortion levels decrease with the number of transmit antennas allowing good performance, even with 1-bit DACs are shown.
引用
收藏
页码：778 / 779
页数：2
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