论文标题
用于多细胞MMIMO系统的硬件意识到的飞行员净化预码
Hardware-Aware Pilot Decontamination Precoding for Multi-cell mMIMO Systems With Rician Fading
论文作者
论文摘要
我们考虑使用具有两层飞行员净化预码的硬件破损的多细胞RICIAN RICIAN褪色的大型多输入多输出（MMIMO）系统，也称为大规模褪色的预编码（LSFP）。每个BS都配备了灵活的动态类似物到数字转换器（ADC）/数字到Analog转换器（DAC）体系结构，并且用户设备（UES）具有低分辨率ADC。此外，BS和UE都有硬件破坏的射频链。动态ADC/DAC架构使我们能够改变连接到每个BS天线的ADC/DAC的分辨率，并适当选择它们以最大化SE。我们建议使用两层LSFP和常规的单层预码（SLP），针对硬件损坏的MMIMO系统，建议使用失真感知的最小平方误差（DA-MMSE）预编码器。我们讨论了LSFP和SLP的用例，以及DA-MMSE和Da-MMSE MMSE（DU-MMSE）预编码器，这将为系统设计师在实用系统中的使用方面提供关键的见解。
We consider a hardware-impaired multi-cell Rician faded massive multi-input multi-output (mMIMO) system with two-layer pilot decontamination precoding, also known as large-scale fading precoding (LSFP). Each BS is equipped with a flexible dynamic analog-to-digital converter (ADC)/digital-to-analog converter (DAC) architecture and the user equipments (UEs) have low-resolution ADCs. Further, both BS and UEs have hardwareimpaired radio frequency chains. The dynamic ADC/DAC architecture allows us to vary the resolution of ADC/DAC connected to each BS antenna, and suitably choose them to maximize the SE. We propose a distortion-aware minimum mean squared error (DA-MMSE) precoder and investigate its usage with two-layer LSFP and conventional single-layer precoding (SLP) for hardware-impaired mMIMO systems. We discuss the use cases of LSFP and SLP with DA-MMSE and distortion-unaware MMSE (DU-MMSE) precoders, which will provide critical insights to the system designer regarding their usage in practical systems.
