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相关论文: Far- and Near-Field Channel Measurements and Chara…

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Technologies like ultra-massive multiple-input-multiple-output (UM-MIMO) and reconfigurable intelligent surfaces (RISs) are of special interest to meet the key performance indicators of future wireless systems including ubiquitous…

信息论 · 计算机科学 2024-05-28 Yiqin Wang , Chong Han , Shu Sun , Jianhua Zhang

Terahertz (THz) band owning the abundant multi-ten-GHz bandwidth is capable to support Terabit-per-second wireless communications, which is a pillar technology for 6G and beyond systems. With sub-millimeter-long antennas, ultra-massive (UM)…

信息论 · 计算机科学 2023-08-04 Chong Han , Yuhang Chen , Longfei Yan , Zhi Chen , Linglong Dai

Millimeter wave/Terahertz (mmWave/THz) communication with extremely large-scale antenna arrays (ELAAs) offers a promising solution to meet the escalating demand for high data rates in next-generation communications. A large array aperture,…

信号处理 · 电气工程与系统科学 2024-09-30 Hongwei Wang , Jun Fang , Huiping Duan , Hongbin Li

Extremely large antenna arrays (ELAAs) are widely adopted in mmWave/THz communications to compensate for the severe path loss, wherein the channel estimation remains a significant challenge since the Rayleigh distance of ELAAs stretches to…

信号处理 · 电气工程与系统科学 2026-03-17 Yiming Chen , Hongwei Wang , Lingxiang Li , Zhi Chen

The sixth-generation (6G) wireless systems are expected to adopt extremely large aperture arrays (ELAAs), novel antenna architectures, and operate in extremely high-frequency bands to meet growing data demands. ELAAs significantly increase…

信号处理 · 电气工程与系统科学 2026-03-30 Wen-Xuan Long , Shengyu Ye , Marco Moretti , Michele Morelli , Luca Sanguinetti , Rui Chen , Cheng-Xiang Wang

The extremely short wavelength of terahertz (THz) communications leads to an extended radiative near-field region, in which some canonical far-field assumptions fail. Existing near-field boundary formulations (Fraunhofer distance) for…

网络与互联网体系结构 · 计算机科学 2025-11-04 Peng Zhang , Vitaly Petrov , Emil Björnson

Extremely large antenna array (ELAA) is a common feature of several key candidate technologies for sixth-generation mobile networks (6G), such as ultra-massive multiple-input-multiple-output (UM-MIMO), cell-free massive MIMO, reconfigurable…

信息论 · 计算机科学 2024-10-28 Mingyao Cui , Zidong Wu , Yu Lu , Xiuhong Wei , Linglong Dai

The natural integration of extremely large antenna arrays (ELAAs) and terahertz (THz) communications can potentially achieve Tbps data rates in 6G networks. However, due to the extremely large array aperture and wide bandwidth, a new…

信息论 · 计算机科学 2024-06-04 Mingyao Cui , Linglong Dai

6G communication will greatly benefit from using extremely large-scale antenna arrays (ELAAs) and new mid-band spectrums (7-24 GHz). These techniques require a thorough exploration of the challenges and potentials of the associated…

信号处理 · 电气工程与系统科学 2024-05-13 Wei Fan , Zhiqiang Yuan , Yejian Lyu , Jianhua Zhang , Gert Pedersen , Jonathan Borrill , Fengchun Zhang

Wireless communications in the millimeter wave (mmWave) and terahertz (THz) spectrum allow harnessing large frequency bands, thus achieving ultra-high data rates. However, the inherently short wavelengths of mmWave and THz signals lead to…

信号处理 · 电气工程与系统科学 2026-05-06 Peng Zhang , Vitaly Petrov , Emil Björnson

This article focuses on the near-field effect in terahertz (THz) communications and sensing systems. By equipping with extremely large-scale antenna arrays (ELAAs), the near-field region in THz systems can be possibly extended to hundreds…

信息论 · 计算机科学 2023-06-19 Zhaolin Wang , Xidong Mu , Yuanwei Liu

Extremely large-scale antenna array (ELAA) systems emerge as a promising technology in beyond 5G and 6G wireless networks to support the deployment of distributed architectures. This paper explores the use of ELAAs to enable joint…

Extremely large-scale antenna arrays (ELAAs) have emerged as a pivotal technology for addressing the unprecedented performance demands of next-generation wireless communication systems. To enhance their practicality, we propose…

信号处理 · 电气工程与系统科学 2026-01-21 Zhengyu Wang , Tiebin Mi , Gui Zhou , Robert C. Qiu

Extremely Large-scale Array (ELAA) is considered a frontier technology for future communication systems, pivotal in improving wireless systems' rate and spectral efficiency. As ELAA employs a multitude of antennas operating at higher…

机器学习 · 计算机科学 2024-08-26 Jiali Nie , Yuanhao Cui , Zhaohui Yang , Weijie Yuan , Xiaojun Jing

In this letter, we propose a new conformal array architecture, called extremely large-scale uniform arc array (XL-UAA), to improve near-field communication performance. Specifically,under the non-uniform spherical wavefront channel model,…

信息论 · 计算机科学 2024-12-09 Guoyu Li , Changsheng You , Guanyu Shang , Shaochuan Wu

A proof of concept for high speed near-field imaging with sub-wavelength resolution using SLM is presented. An 8 channel THz detector array antenna with an electrode gap of 100 um and length of 5 mm is fabricated using the commercially…

The number of users that can be spatially multiplexed by a wireless access point depends on the aperture of its antenna array. When the aperture increases and wavelength shrinks, "new" electromagnetic phenomena can be utilized to further…

信息论 · 计算机科学 2022-09-08 Parisa Ramezani , Emil Björnson

One of the most relevant challenges in future 6G wireless networks is how to support a massive spatial multiplexing of a large number of user terminals. Recently, extremely large antenna arrays (ELAAs), also referred to as extra-large MIMO…

信息论 · 计算机科学 2023-12-01 Adrian Agustin , Xavier Mestre

Terahertz (THz) communication can offer terabit-per-second rates in future wireless systems, thanks to the ultra-wide bandwidths, but require large antenna arrays. As antenna apertures expand and we enter the near-field scenarios, the…

信号处理 · 电气工程与系统科学 2026-03-17 Wenqi Zhao , Chong Han , Emil Björnson

Extremely large aperture array (ELAA) is anticipated to serve as a pivotal feature of future multiple-input multiple-output (MIMO) systems in 6G. Near-field (NF) fading channel models are essential for reliable link-level simulation and…

信息论 · 计算机科学 2024-10-28 Jiuyu Liu , Yi Ma , Ahmed Elzanaty , Rahim Tafazolli
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