Robust One-bit DOA Estimation for Compressed Massive MIMO System

Massive multiple-input multiple-output (MIMO) systems gain a momentum attention in direction-of-arrival (DOA) estimation due to high spectral efficiency and spatial resolution. Nevertheless, with the increasing of antenna elements, the size of the sampling data grows sharply, which causes heavy complexity both in circuit design and signal post-processing. In order to reduce the computational complexities, an efficient and robust DOA estimation scheme is proposed with compressed one-bit quantization measurements in this paper. With the technique of array compressed and one-bit quantization, the cost and complexity of the whole system are reduced significantly. Although the amplitude of signals are lost yet the dimension of data samples is reduced, the proposed DOA estimation algorithm shows better and robust performance than the traditional ones. Numerous results validate the superiority of the proposed DOA estimation scheme.