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Terahertz (THz) communications will be pivotal in sixth-generation (6G) wireless networks, offering significantly wider bandwidths and higher data rates. However, the unique propagation characteristics of the THz frequency band, such as…

网络与互联网体系结构 · 计算机科学 2024-09-17 Waqas Khalid , Heejung Yu , Farman Ali , Huiping Huang

With the fifth-generation (5G) networks widely commercialized and fast deployed, the sixth-generation (6G) wireless communication is envisioned to provide competitive quality of service (QoS) in multiple aspects to global users. The…

信号处理 · 电气工程与系统科学 2022-10-14 Yiming Huo , Xiaodai Dong , Nuwan Ferdinand

Recently, the reconfigurable intelligent surface (RIS), benefited from the breakthrough on the fabrication of programmable meta-material, has been speculated as one of the key enabling technologies for the future six generation (6G)…

信息论 · 计算机科学 2022-06-23 Chongwen Huang , Ronghong Mo , Chau Yuen

Terahertz (THz) communications have been envisioned as a promising enabler to provide ultra-high data transmission for sixth generation (6G) wireless networks. To tackle the blockage vulnerability brought by severe path attenuation and poor…

信息论 · 计算机科学 2021-10-14 Xinying Ma , Zhi Chen , Longfei Yan , Chong Han , Qiye Wen

Reconfigurable intelligent surface (RIS) can significantly enhance the service coverage of Tera-Hertz massive multiple-input multiple-output (MIMO) communication systems. However, obtaining accurate high-dimensional channel state…

信号处理 · 电气工程与系统科学 2022-12-06 Minghui Wu , Zhen Gao , Yang Huang , Zhenyu Xiao , Derrick Wing Kwan Ng , Zhaoyang Zhang

Reconfigurable Intelligent Surface (RIS) has becoming a useful tool in future wireless communication systems for close-distance communication network. This paper we use Reconfigurable Intelligent Surface (RIS) for downlink multi-user…

信息论 · 计算机科学 2021-02-02 RuiTianYi Lu

Terahertz (THz) communication is considered one of the most critical technologies for 6G because of its abundant bandwidth. To compensate the high propagation of THz, analog/digital hybrid precoding for THz massive multiple input multiple…

信号处理 · 电气工程与系统科学 2025-07-15 Yang Wang , Chuang Yang , Mugen Peng

Terahertz (THz) communication technology is regarded as a promising enabler for achieving ultra-high data rate transmission in next-generation communication systems. To mitigate the high path loss in THz systems, the transmitting beams are…

信号处理 · 电气工程与系统科学 2025-02-25 Yanzhao Hou , Guoning Wang , Chen Chen , Gaoze Mu , Qimei Cui , Xiaofeng Tao , Yuanmu Yang

Terahertz (THz) communication offers ultra-high data rates and has emerged as a promising technology for future wireless networks. However, the inherently high free-space path loss of THz waves significantly limits the coverage range of THz…

信号处理 · 电气工程与系统科学 2025-12-17 Ben Chen , Zhangdui Zhong , Ke Guan , Danping He , Yiran Wang , Jianwen Ding , Qi Luo

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

One of the key enablers of future wireless communications is constituted by massive multiple-input multiple-output (MIMO) systems, which can improve the spectral efficiency by orders of magnitude. However, in existing massive MIMO systems,…

The demand for unprecedented performance in the upcoming 6G wireless networks is fomenting the research on THz communications empowered by Reconfigurable Inteligent Surfaces (RISs). A wide range of use cases have been proposed, most of…

The operation of Terahertz (THz) communication can be significantly impacted by the interaction between the transmitted wave and the molecules in the atmosphere. In particular, it has been observed experimentally that the signal undergoes…

信号处理 · 电气工程与系统科学 2021-09-17 Anish Pradhan , J. Kartheek Devineni , Harpreet S. Dhillon , Andreas F. Molisch

Reconfigurable Intelligent Surfaces (RIS) have received significant attention recently as an innovation for enhanced connectivity, capacity, and energy efficiency in future wireless networks. Recent works indicate that such RIS-augmented…

信号处理 · 电气工程与系统科学 2021-10-11 Akbar Sayeed

Wireless communications in the THz frequency band is an envisioned revolutionary technology for sixth Generation (6G) networks. However, such frequencies impose certain coverage and device design challenges that need to be efficiently…

Reconfigurable intelligent surface (RIS) assisted millimeter-wave (mmWave) communication systems relying on hybrid beamforming structures are capable of achieving high spectral efficiency at a low hardware complexity and low power…

信号处理 · 电气工程与系统科学 2022-01-13 Chenghao Feng , Wenqian Shen , Jianping An , Lajos Hanzo

Transmitting data using the phases on reconfigurable intelligent surfaces (RIS) is a promising solution for future energy-efficient communication systems. Recent work showed that a virtual phased massive multiuser…

信号处理 · 电气工程与系统科学 2023-10-26 Wai-Yiu Keung , Hei Victor Cheng , Wing-Kin Ma

Reconfigurable intelligent surfaces (RISs) have huge potential to improve spectral and energy efficiency in future wireless systems at a minimal cost. However, early prototype results indicate that deploying hundreds or thousands of…

信号处理 · 电气工程与系统科学 2024-12-12 Eduard E. Bahingayi , Nemanja Stefan Perović , Le-Nam Tran

The next generation of wireless networks is expected to tap into the terahertz (0.1--10 THz) band to satisfy the extreme latency and bandwidth density requirements of future applications. However, the development of systems in this band is…

The transition to Terahertz (THz) frequencies, providing an ultra-wide bandwidth, is a key driver for future wireless communication networks. However, the specific properties of the THz channel, such as severe path loss and vulnerability to…

信息论 · 计算机科学 2024-01-26 Yasemin Karacora , Adam Umra , Aydin Sezgin