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在上一期热点文献推荐中，我们为您推荐了半导体与集成电路的最新应用，包括首颗基于忆阻器的片上学习存算一体芯片——面向边缘学习的全集成忆阻器存算一体芯片、用于高速视觉任务的全模拟光电芯片、可编程梯度掺杂用于可重构碲化钼器件、层状铁电半导体中的极化-电导耦合机制。本期我们为您选取了4篇文献，介绍通信领域的最新进展，包括通过模加运算实现太赫兹可编程超表面的高分辨率二维波束控制、用于100-Gbps THz 6G无线传输的拓扑集成天线、基于石墨烯集成光电混频器的亚太赫兹无线传输、6G超大规模MIMO教程：基础、信号处理和应用。文献一通过模加运算实现太赫兹可编程超表面的高分辨率二维波束控制 Modulo-addition operation enables terahertz programmable metasurface for high-resolution two-dimensional beam steering Li, Weili, etc. SCIENCE ADVANCES, 2023, 9(42) Electrically controlled terahertz (THz) beamforming antennas are essential for various applications such as wireless communications, security checks, and radar to improve coverage and information capacity. The emerging programmable metasurface provides a flexible, cost-effective platform for THz beam steering. However, scaling such arrays to achieve high-gain beam steering faces several technical challenges. Here, we propose a pixelated liquid crystal THz metasurface with a crossbar structure, thereby increasing the array scale to more than 3000. The coding pattern on the programmable device is generated by the modulo-addition of the coding sequences on the top and bottom layers. We experimentally demonstrate the programmable liquid crystal metasurface capable of active beam deflection in the upper half-space. This scale-up of programmable devices opens exciting opportunities in pencil beamforming, high-speed information processing, and optical computing. 阅读原文：https://www.science.org/doi/10.1126/sciadv.adi7565 文献二用于100-Gbps THz 6G无线传输的拓扑集成天线 Valley-conserved topological integrated antenna for 100-Gbps THz 6G wireless Jia, Ridong, etc. SCIENCE ADVANCES, 2023, 9(44) The topological phase revolutionized wave transport, enabling integrated photonic interconnects with sharp light bending on a chip. However, the persistent challenge of momentum mismatch during intermedium topological mode transitions due to material impedance inconsistency remains. We present a 100-Gbps topological wireless communication link using integrated photonic devices that conserve valley momentum. The valley-conserved silicon topological waveguide antenna achieves a 12.2-dBi gain, constant group delay across a 30-GHz bandwidth and enables active beam steering within a 36° angular range. The complementary metal oxide semiconductor-compatible valley-conserved devices represent a major milestone in hybrid electronic-photonic-based topological wireless communications, enabling terabit-per-second backhaul communication, high throughput, and intermedium transport of information carriers, vital for the future of communication from the sixth to X generation. 阅读原文： https://www.science.org/doi/10.1126/sciadv.adi8500 文献三基于石墨烯集成光电混频器的亚太赫兹无线传输 Sub-THz wireless transmission based on graphene-integrated optoelectronic mixer Montanaro, Alberto, etc. NATURE COMMUNICATIONS, 2023, 14 Optoelectronics is a valuable solution to scale up wireless links frequency to sub-THz in the next generation antenna systems and networks. Here, we propose a low-power consumption, small footprint building block for 6 G and 5 G new radio wireless transmission allowing broadband capacity (e.g., 10–100 Gb/s per link and beyond). We demonstrate a wireless datalink based on graphene, reaching setup limited sub-THz carrier frequency and multi-Gbit/s data rate. Our device consists of a graphene-based integrated optoelectronic mixer capable of mixing an optically generated reference oscillator approaching 100 GHz, with a baseband electrical signal. We report >96 GHz optoelectronic bandwidth and -44 dB upconversion efficiency with a footprint significantly smaller than those of state-of-the-art photonic transmitters (i.e., <0.1 mm2). These results are enabled by an integrated-photonic technology based on wafer-scale high-mobility graphene and pave the way towards the development of optoelectronics-based arrayed-antennas for millimeter-wave technology. 阅读原文：https://www.nature.com/articles/s41467-023-42194-6 文献四 6G超大规模MIMO教程：基础、信号处理和应用 A Tutorial on Extremely Large-Scale MIMO for 6G: Fundamentals, Signal Processing, and Applications Wang, Zhe, etc. IEEE COMMUNICATIONS SURVEYS AND TUTORIALS, 2024, Early Access Extremely large-scale multiple-input-multiple-output (XL-MIMO), which offers vast spatial degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth generation (6G) of wireless mobile networks. With its growing significance, both opportunities and challenges are concurrently manifesting. This paper presents a comprehensive survey of research on XL-MIMO wireless systems. In particular, we introduce four XL-MIMO hardware architectures: uniform linear array (ULA)-based XL-MIMO, uniform planar array (UPA)-based XL-MIMO utilizing either patch antennas or point antennas, and continuous aperture (CAP)-based XL-MIMO. We comprehensively analyze and discuss their characteristics and interrelationships. Following this, we introduce several electromagnetic characteristics and general distance boundaries in XL-MIMO. Given the distinct electromagnetic properties of near-field communications, we present a range of channel models to demonstrate the benefits of XL-MIMO. We further discuss and summarize signal processing schemes for XL-MIMO. It is worth noting that the low-complexity signal processing schemes and deep learning empowered signal processing schemes are reviewed and highlighted to promote the practical implementation of XL-MIMO. Furthermore, we explore the interplay between XL-MIMO and other emergent 6G technologies. Finally, we outline several compelling research directions for future XL-MIMO wireless communication systems. 阅读原文：https://ieeexplore.ieee.org/document/10379539 “前沿文献专题推荐服务”是图书馆情报服务部学科服务的重要内容。欢迎有相关需求的科研人员与我们联系，我们将为您提供更有针对性的定题服务。联系电话：62281933 62283502 地址：西土城校区图书馆125室，沙河校区图书馆东205室联系人：杨老师闫老师邮箱：yandong80@bupt.edu.cn

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