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The terahertz (THz) band, 0.1-10 THz, has sufficient resources not only to satisfy the 5G requirements of 10 Gbit/s peak data rate but to enable a number of tempting rate-greedy applications. However, the THz band brings novel challenges,…

网络与互联网体系结构 · 计算机科学 2018-03-28 Vitaly Petrov , Joonas Kokkoniemi , Dmitri Moltchanov , Janne Lehtomaki , Yevgeni Koucheryavy , Markku Juntti

The terahertz (THz) frequency band has recently attracted considerable attention in wireless communications as potential candidate for providing the necessary high bandwidth for demanding applications. With increasing frequency, however,…

信号处理 · 电气工程与系统科学 2022-12-13 Evangelos N. Papasotiriou , Sotiris Droulias , Angeliki Alexiou

The terahertz (THz) band is a promising candidate for sixth-generation wireless networks, but its deploymen in outdoor environments is challenged by meteorological phenomena, particularly fog, which imposes variable and difficult-to-predict…

Next-generation wireless systems are rapidly evolving from communication-only systems to multi-modal systems with integrated sensing and communications. In this paper a novel joint sensing and communication framework is proposed for…

信息论 · 计算机科学 2021-11-30 Christina Chaccour , Walid Saad , Omid Semiari , Mehdi Bennis , Petar Popovski

Due to the large bandwidth available, millimeter-Wave (mmWave) bands are considered a viable opportunity to significantly increase the data rate in cellular and wireless networks. Nevertheless, the need for beamforming and directional…

系统与控制 · 电气工程与系统科学 2022-05-23 Sara Khosravi , Hossein S. Ghadikolaeiy , Jens Zander , Marina Petrova

The Terahertz (THz) frequency band offers a wide range of bandwidths, from tens to hundreds of gigahertz (GHz) and also supports data speeds of several terabits per second (Tbps). Because of this, maintaining THz channel reliability and…

Terahertz (THz) communications is considered as one of key solutions to support extremely high data demand in 6G. One main difficulty of the THz communication is the severe signal attenuation caused by the foliage loss, oxygen/atmospheric…

信号处理 · 电气工程与系统科学 2024-05-14 Jinhong Kim , Yongjun Ahn , Seungnyun Kim , Byonghyo Shim

The proliferation of wireless devices in recent years has caused a spectrum shortage, which led the scientific community to explore the potential of using terahertz (THz) communications. However, THz systems suffer from severe path…

Beam misalignment is one of the main challenges for the design of reliable wireless systems in terahertz (THz) bands. This paper investigates how to apply user-centric base station (BS) clustering as a valuable add-on in THz networks. In…

系统与控制 · 电气工程与系统科学 2024-02-20 Khaled Humadi , Imene Trigui , Wei-Ping Zhu , Wessam Ajib

Future sixth-generation of wireless system is expected to provide data-rates in the order of 1 Tbps and latencies below 1 ms. Among others, one of the most promising strategies to meet these requirements is to operate at higher frequencies…

Terahertz (THz) communication (0.1-10 THz) is regarded as a promising technology, which provides rich available bandwidth and high data rate of terahertz bit per second (Tbps). However, THz signals suffer from high path loss, which…

信息论 · 计算机科学 2021-05-26 Sha Xie , Lingxiang Li , Zhi Chen , Shaoqian Li

Terahertz (THz) ultra-massive multiple-input multiple-output (UM-MIMO) promises ultra-high throughput, while its highly directional beams demand rapid and accurate beam tracking driven by precise user-state estimation. Moreover, large array…

信号处理 · 电气工程与系统科学 2026-03-18 Zhi Zeng , Chong Han , Emil Björnson

The interplay between large antenna apertures and high frequencies in future generations of wireless networks will give rise to near-field communications. In this paper, we focus on the hybrid analog and digital beamforming architecture of…

信息论 · 计算机科学 2024-06-04 Panagiotis Gavriilidis , George C. Alexandropoulos

Although terahertz (THz) communications can provide mobile broadband services, it usually has a large path loss and is vulnerable to antenna misalignment. This significantly degrades the reception reliability. To address this issue, the…

信息论 · 计算机科学 2022-09-29 Ziyang Song , Zheng Shi , Qingping Dou , Guanghua Yang , Yunfei Li , Shaodan Ma

Initiation of fourth generation (4G) mobile telecommunication system rollouts fires the starting pistol for beyond 4G research activities. Whereas technologies enhancing spectral efficiency have traditionally been the solution to data rate…

网络与互联网体系结构 · 计算机科学 2016-05-10 Turker Yilmaz , Ozgur B. Akan

Terahertz (THz) carrier frequencies (100 GHz to 10 THz) have been touted as a source for unprecedented wireless connectivity and high-precision sensing, courtesy of their wide bandwidth availability and small wavelengths, but noteworthy…

信号处理 · 电气工程与系统科学 2024-07-03 Sidharth Thomas , Jaskirat Singh Virdi , Aydin Babakhani , Ian P. Roberts

Terahertz (THz) communications are envisioned to be a promising technology for 6G thanks to its broad bandwidth. However, the large path loss, antenna misalignment, and atmospheric influence of THz communications severely deteriorate its…

信息论 · 计算机科学 2023-04-25 Ziyang Song , Zheng Shi , Jiaji Su , Qingping Dou , Guanghua Yang , Haichuan Ding , Shaodan Ma

Devices in a device-to-device (D2D) network operating in sub-THz frequencies require knowledge of the spatial channel that connects them to their peers. Acquiring such high dimensional channel state information entails large overhead, which…

信号处理 · 电气工程与系统科学 2024-12-23 Fernando Pedraza , Jan Christian Hauffen , Fabian Jaensch , Shuangyang Li , Giuseppe Caire

Wireless communication in millimetre wave bands, namely above 20 GHz and up to 300 GHz, is foreseen as a key enabler technology for the next generation of wireless systems. The huge available bandwidth is contemplated to achieve high…

Millimeter-wave transceivers use large antenna arrays to form narrow high-directional beams and overcome severe attenuation. Narrow beams require large signaling overhead to be aligned if no prior information about beam directions is…

信号处理 · 电气工程与系统科学 2023-11-16 Mohamed Naguib , Yahia Shabara , Can Emre Koksal