Wideband Beamforming With Rainbow Beam Training Using Reconfigurable True-Time-Delay Arrays for Millimeter-Wave Wireless [Feature]
Wideband Beamforming With Rainbow Beam Training Using Reconfigurable True-Time-Delay Arrays for Millimeter-Wave Wireless [Feature]
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DOI：
10.1109/mcas.2022.3214408
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发表时间：
2021-11
影响因子：
6.9
通讯作者：
Chung-Ching Lin;Veljko Boljanovic;Han Yan;Erfan Ghaderi;Mohammad Ali Mokri;J. Gaddis;Aditya Wadaskar;C. Puglisi;Soumen Mohapatra;Qiuyan Xu;Sreeni Poolakkal;D. Heo;Subhanshu Gupta;D. Cabric
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文献类型：
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作者：
Chung-Ching Lin;Veljko Boljanovic;Han Yan;Erfan Ghaderi;Mohammad Ali Mokri;J. Gaddis;Aditya Wadaskar;C. Puglisi;Soumen Mohapatra;Qiuyan Xu;Sreeni Poolakkal;D. Heo;Subhanshu Gupta;D. Cabric
集成实时延迟阵列的十年研究已经取得了有机增长，使得能够实现具有宽孔径宽度的大型阵列的宽带波束形成器。本文介绍了可在模拟或数字基带上实现的高度可重配置延迟元件，可实现多种空间信号处理 (SSP) 功能，包括宽带波束成形、宽带干扰消除和快速波束训练。利用集成延迟补偿技术，介绍了波束训练算法、系统设计考虑因素、系统架构和具有大延迟范围分辨率比的电路的详细信息。本文阐述了下一代网络基础设施中基于实时延迟的阵列的框架，支持平面阵列中的 3D 波束训练、低延迟大规模多址接入和新兴无线通信标准。
The decadal research in integrated true-time-delay arrays have seen organic growth enabling realization of wideband beamformers for large arrays with wide aperture widths. This article introduces highly reconfigurable delay elements implementable at analog or digital baseband that enables multiple Spatial Signal Processing (SSP) functions including wideband beamforming, wideband interference cancellation, and fast beam training. Details of the beam-training algorithm, system design considerations, system architecture and circuits with large delay range-to-resolution ratios are presented leveraging integrated delay compensation techniques. The article lays out the framework for true-time-delay based arrays in next-generation network infrastructure supporting 3D beam training in planar arrays, low latency massive multiple access, and emerging wireless communications standards.