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arXiv 2501.07584eess.SPcs.SYeess.SY
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开源端到端数字波束成形系统建模

Open-source End-to-End Digital Beamforming System Modeling

Jose Guajardo, Ali Niknejad

AI总结:

针对6G大规模MIMO数字波束成形系统功耗与噪声问题,提出基于MATLAB的开源端到端行为级硬件模型,验证干扰噪声方程模型,助力低分辨率ADC系统优化设计。

摘要:

数字波束成形是6G无线通信中大规模MIMO的基础。从核心来看,数字波束成形架构具备波束搜索速度更快、通过迫零波束成形实现干扰置零、频谱容量更高以及灵活性更强等关键优势。然而,由于这类系统中存在大量模数转换器(ADC),它们通常需要在功耗方面做出权衡。本文介绍了一种基于MATLAB的开源通用数字波束成形系统行为级硬件模型。更具体地说,该模型对任意数量用户设备(UE)与任意规模基站(BS)之间的端到端上行链路进行了建模,涵盖存在强干扰源和不存在强干扰源两种场景。本文还提出并验证了一种基于方程的模型,用于分析干扰对热噪声和量化噪声的影响。本文提出的行为级模型旨在深化对此类数字波束成形系统的理解,帮助系统设计者进行优化。本文呈现的结果主要围绕低分辨率ADC的实现展开,因此重点研究了包括干扰源强度在内的系统参数对量化噪声的影响。

英文摘要:

Digital beamforming forms the foundation for massive MIMO in 6G wireless communications. At their core, digital beamforming architectures provide key benefits such as faster beam search, interference nulling via zero-force beamforming, higher spectral capacity, and more increased flexibility. However, they generally tradeoff power consumption due to the large number of ADCs in such systems. This paper introduces an open-source MATLAB-based behavioral hardware model of a general digital beamforming system. More specifically, it models an end-to-end uplink between an arbitrary number of user elements (UEs) and an arbitrarily large base station (BS) with and without a strong interferer. This paper also presents and validates an equation-based model for the effects of interference on thermal and quantization noise. The behavioral model presented in this paper aims to deepen understanding of such digital beamforming systems to enable system designers to make optimizations. The results presented in this paper primarily center on implementations with low-resolution ADCs and, thus, focus on the effects of system parameters, including interferer strength, on quantization noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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