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The unprecedented increase in wireless data traffic, predicted to occur within the next decade, is motivating academia and industries to look beyond contemporary wireless standards and conceptualize the sixth-generation (6G) wireless…

信号处理 · 电气工程与系统科学 2024-10-28 Akram Shafie , Nan Yang , Chong Han , Josep Miquel Jornet , Markku Juntti , Thomas Kurner

Terahertz (THz) band communications are envisioned as a key technology for 6G and Beyond. As a fundamental wireless infrastructure, THz communication can boost abundant promising applications. In 2014, our team published two comprehensive…

信号处理 · 电气工程与系统科学 2022-04-28 Ian F. Akyildiz , Chong Han , Zhifeng Hu , Shuai Nie , Josep M. Jornet

Energy beamforming (EB) is a key technique for achieving efficient radio-frequency (RF) transmission enabled wireless energy transfer (WET). By optimally designing the waveforms from multiple energy transmitters (ETs) over the wireless…

信息论 · 计算机科学 2017-04-05 Seunghyun Lee , Rui Zhang

Ultra-massive multiple-input multiple-output (UM-MIMO) is the enabler of Terahertz (THz) communications in next-generation wireless networks. In THz UM-MIMO systems, a new paradigm of cross-field communications spanning from near-field to…

信息论 · 计算机科学 2024-01-15 Yuhang Chen , Chong Han , Emil Björnson

Following the recent progress in Terahertz (THz) signal generation and radiation methods, joint THz communications and sensing applications are shaping the future of wireless systems. Towards this end, THz spectroscopy is expected to be…

信号处理 · 电气工程与系统科学 2022-09-07 Sara Helal , Hadi Sarieddeen , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed Slim Alouini

The ever-increasing demand for high-speed data transmission continues to motivate research and development efforts towards the sixth generation (6G) of wireless communication technologies and beyond. The use of terahertz (THz) carrier…

Future wireless services, such as the metaverse require high information rate, reliability, and low latency. Multi-user wireless systems can meet such requirements by utilizing the abundant terahertz bandwidth with a massive number of…

信息论 · 计算机科学 2023-03-15 Christo Kurisummoottil Thomas , Walid Saad

Terahertz (THz) communication is a key enabler for 6G systems, offering ultra-wide bandwidth and unprecedented data rates. However, THz signal propagation differs significantly from lower-frequency bands due to severe free space path loss,…

信号处理 · 电气工程与系统科学 2025-05-13 John Song , Lihao Zhang , Feng Ye , Haijian Sun

The terahertz frequency band, ranging from 0.1 to 10 THz, offers extensive spectral resources for next-generation wireless communication systems. To compensate for the limited transmission power of terahertz transceivers and the significant…

应用物理 · 物理学 2025-03-31 Mingxiang Li , Josep M. Jornet , Daniel M. Mittleman , Chong Han

Terahertz (THz)-band communications are celebrated as a key enabling technology for next-generation wireless systems that promises to integrate a wide range of data-demanding and delay-sensitive applications. Following recent advancements…

信号处理 · 电气工程与系统科学 2020-05-04 Hadi Sarieddeen , Nasir Saeed , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Terahertz (THz) communication ensures the provision of ultra-high data rates owing to its abundant bandwidth; however, its performance is impeded by complex propagation mechanisms. In particular, molecular absorption induces a temporal…

信号处理 · 电气工程与系统科学 2025-05-02 Ahmed Naeem , Saira Rafique , Abuu B. Kihero , Huseyin Arslan

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 regarded as a pillar technology for the 6G systems, by offering multi-ten-GHz bandwidth. To overcome the huge propagation loss while reducing the hardware complexity, THz ultra-massive (UM) MIMO systems…

信息论 · 计算机科学 2022-03-30 Longfei Yan , Chong Han , Nan Yang , Jinhong Yuan

Terahertz (THz) communication is emerging as a pivotal enabler for 6G and beyond wireless systems owing to its multi-GHz bandwidth. One of its novel applications is in wireless data centers, where it enables ultra-high data rates while…

信息论 · 计算机科学 2025-04-30 Wenqi Zhao , Sergi Abadal , Guochao Song , Jiamo Jiang , Chong Han

In the advent of next-generation wireless communication, millimeter-wave (mmWave) and terahertz (THz) technologies are pivotal for their high data rate capabilities. However, their reliance on large antenna arrays and narrow directive beams…

信号处理 · 电气工程与系统科学 2024-12-09 Gouranga Charan , Ahmed Alkhateeb

In this paper, we investigate the design of energy-efficient beamforming for an ISAC system, where the transmitted waveform is optimized for joint multi-user communication and target estimation simultaneously. We aim to maximize the system…

信号处理 · 电气工程与系统科学 2023-07-11 Jiaqi Zou , Songlin Sun , Christos Masouros , Yuanhao Cui , Yafeng Liu , Derrick Wing Kwan Ng

In this paper, we compare the performance of two main MIMO techniques, beamforming and multiplexing, in the Terahertz (THz) band. The main problem with the THz band is its huge propagation loss, which is caused by the tremendous signal…

信息论 · 计算机科学 2017-10-27 Sayed Amir Hoseini , Ming Ding , Mahbub Hassan

Terahertz (THz) frequencies are important for next generation wireless systems due to the advantages in terms of large available bandwidths. On the other hand, the limited range due to high attenuation in these frequencies can be overcome…

信号处理 · 电气工程与系统科学 2024-05-31 Hasan Nayir , Erhan Karakoca , Güneş Karabulut Kurt , Ali Görçin

Wireless communications and sensing at terahertz (THz) band are increasingly investigated as promising short-range technologies because of the availability of high operational bandwidth at THz. In order to address the extremely high…

信号处理 · 电气工程与系统科学 2021-12-15 Ahmet M. Elbir , Kumar Vijay Mishra , Symeon Chatzinotas

Terahertz (THz) communication is envisioned as a key technology for 6G and beyond wireless systems owing to its multi-GHz bandwidth. To maintain the same aperture area and the same link budget as the lower frequencies, ultra-massive…

信息论 · 计算机科学 2024-11-25 Wenqi Zhao , Chong Han , Ho-Jin Song , Emil Björnson