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.
@article{arxiv.2011.00451,
title = {Impact of Low-Resolution ADC on DOA Estimation Performance for Massive MIMO Receive Array},
author = {Baihua Shi and Nuo Chen and Xicheng Zhu and Yuwen Qian and Yijin Zhang and Feng Shu and Jiangzhou Wang},
journal= {arXiv preprint arXiv:2011.00451},
year = {2022}
}