Millimeter wave receive beamforming with one-bit quantization

Abstract

Nowadays, the increase amounts of mobile data has resulted in great demand on existing communication networks.The millimeter-wave band offers large bandwidths to be exploited, which eases the spectrum crunch for bands below 3 GHz. In order to mitigate the path loss from high frequencies, a large antenna array and beamforming technology are adopted to increase the link gain. However, a challenge arises from the new band. Given the order of gigahertz bandwidth and the high sampling rate, the high-resolution ADC (Analog-to-Digital Converter) used in the large array creates a power consumption bottleneck.One solution is to use a low-resolution ADC to replace the full-precision ADC. In this paper, we propose a mixed LMS (Least