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arXiv · 2011.00451

Impact of Low-Resolution ADC on DOA Estimation Performance for Massive MIMO Receive Array

Baihua Shi·Nuo Chen·Xicheng Zhu·Yuwen Qian·Yijin Zhang·Feng Shu·Jiangzhou Wang
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Abstract

In this paper, we present a new scenario of direction of arrival (DOA) estimation using massive multiple-input multiple-output (MIMO) receive array with low-resolution analog-to-digital convertors (ADCs), which can strike a good balance between performance and circuit cost. Based on the linear additive quantization noise model (AQNM), the effect of low-resolution ADCs on the methods, such as Root-MUSIC method, is analyzed. Also, the closed-form expression of Cramer-Rao lower bound (CRLB) is derived to evaluate the performance loss caused by the low-resolution ADCs. The simulation results show that the Root-MUSIC methods can achieve the corresponding CRLB. Furthermore, 2-3 bits are acceptable for most applications if the 1dB performance loss.

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Baihua Shi, Nuo Chen, Xicheng Zhu, Yuwen Qian, Yijin Zhang, Feng Shu, Jiangzhou Wang. 2020-11-01. Impact of Low-Resolution ADC on DOA Estimation Performance for Massive MIMO Receive Array. https://doi.org/10.1109/jsyst.2021.3139449

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