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Reconfigurable intelligent surface (RIS)-aided terahertz (THz) communications have been regarded as a promising candidate for future 6G networks because of its ultra-wide bandwidth and ultra-low power consumption. However, there exists the…

Information Theory · Computer Science 2023-06-26 Wencai Yan , Wanming Hao , Chongwen Huang , Gangcan Sun , Osamu Muta , Haris Gacanin , Chau Yuen

In this paper, we consider the simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-assisted THz communications with three-side beam split. Except for the beam split at the base station (BS), we analyze…

Information Theory · Computer Science 2023-10-24 Wencai Yan , Wanming Hao , Gangcan Sun , Chongwen Huang , Qingqing Wu

Benefiting from tens of GHz of bandwidth, terahertz (THz) communications has become a promising technology for future 6G networks. However, the conventional hybrid beamforming architecture based on frequency-independent phase-shifters is…

Information Theory · Computer Science 2023-09-22 Yihang Jiang , Ziqin Zhou , Xiaoyang Li , Yi Gong

We consider reconfigurable intelligent surface (RIS) aided sixth-generation (6G) terahertz (THz) communications for indoor environment in which a base station (BS) wishes to send independent messages to its serving users with the help of…

Information Theory · Computer Science 2023-03-22 Najam Us Saqib , Shumei Hou , Sung Ho Chae , Sang-Woon Jeon

Reconfigurable intelligent surface (RIS)-assisted terahertz (THz) communication is emerging as a key technology to support ultra-high data rates in future sixth-generation networks. However, the acquisition of accurate channel state…

Information Theory · Computer Science 2025-06-17 Xin Su , Ruisi He , Peng Zhang , Bo Ai , Yong Niu , Gongpu Wang

Terahertz (THz) cell-free massive multiple-input-multiple-output (mMIMO) networks have been envisioned as a prospective technology for achieving higher system capacity, improved performance, and ultra-high reliability in 6G networks.…

Signal Processing · Electrical Eng. & Systems 2024-05-14 Xin Su , Ruisi He , Peng Zhang , Bo Ai

Recently, terahertz (THz) communication has drawn considerable attention as one of the promising technologies for the future wireless communications owning to its ultra-wide bandwidth. Nonetheless, one major obstacle that prevents the…

Information Theory · Computer Science 2020-09-15 Wanming Hao , Gangcan Sun , Ming Zeng , Zhengyu Zhu , Zheng Chu , Octavia A. Dobre , Pei Xiao

Benefiting from the growth of the bandwidth, Terahertz (THz) communication can support the new application with explosive requirements of the ultra-high-speed rates for future 6G wireless systems. In order to compensate for the path loss of…

Information Theory · Computer Science 2021-12-16 Yu Lu , Mo Hao , Richard MAcKenzie

Wireless communication in the TeraHertz band (0.1--10 THz) is envisioned as one of the key enabling technologies for the future sixth generation (6G) wireless communication systems scaled up beyond massive multiple input multiple output…

Signal Processing · Electrical Eng. & Systems 2022-06-23 Chongwen Huang , Zhaohui Yang , George C. Alexandropoulos , Kai Xiong , Li Wei , Chau Yuen , Zhaoyang Zhang , Merouane Debbah

Intelligent reflecting surface (IRS) operating in the terahertz (THz) band has recently gained considerable interest due to its high spectrum bandwidth. Due to the exploitation of large scale of IRS, there is a high probability that the…

Signal Processing · Electrical Eng. & Systems 2025-05-28 Chi Qiu , Qingqing Wu , Wen Chen , Meng Hua , Wanming Hao , Mengnan Jian , Fen Hou

A near-field wideband beamforming scheme is investigated for reconfigurable intelligent surface (RIS) assisted multiple-input multiple-output (MIMO) systems, in which a deep learning-based end-to-end (E2E) optimization framework is proposed…

Information Theory · Computer Science 2025-01-30 Ji Wang , Jian Xiao , Yixuan Zou , Wenwu Xie , Yuanwei Liu

Wireless communication in the TeraHertz band (0.1--10 THz) is envisioned as one of the key enabling technologies for the future six generation (6G) wireless communication systems. However, very high propagation attenuations and molecular…

Signal Processing · Electrical Eng. & Systems 2020-09-22 Chongwen Huang , Zhaohui Yang , George C. Alexandropoulos , Kai Xiong , Li Wei , Chau Yuen , Zhaoyang Zhang

Terahertz (THz) systems have the benefit of high bandwidth and hence are capable of supporting ultra-high data rates, albeit at the cost of high pathloss. Hence they tend to harness high-gain beamforming. Therefore a novel hybrid 3D…

Signal Processing · Electrical Eng. & Systems 2022-02-07 Xufang Wang , Zihuai Lin , Feng Lin , Lajos Hanzo , Life Fellow

Reconfigurable Intelligent Surface (RIS) has become a popular technology to improve the capability of a THz multiuser Multi-input multi-output (MIMO) communication system. THz wave characteristics, on the other hand, restrict THz beam…

Signal Processing · Electrical Eng. & Systems 2022-07-01 Yicong Liu , Weijie Li , Zihuai Lin

A simultaneously transmitting and reflecting surface (STARS) aided terahertz (THz) communication system is proposed. A novel power consumption model is proposed that depends on the type and resolution of the STARS elements. The spectral…

Information Theory · Computer Science 2023-06-19 Zhaolin Wang , Xidong Mu , Jiaqi Xu , Yuanwei Liu

Reconfigurable intelligent surface (RIS) has drawn considerable attention from the research society recently, which creates favorable propagation conditions by controlling the phase shifts of the reflected waves at the surface, thereby…

Information Theory · Computer Science 2019-11-01 Boya Di , Hongliang Zhang , Lingyang Song , Yonghui Li , Zhu Han , H. Vincent Poor

Intelligent reflecting surface (IRS)-assisted full-duplex (FD) terahertz (THz) communication systems have emerged as a promising paradigm to satisfy the escalating demand for ultra-high data rates and spectral efficiency in future wireless…

Information Theory · Computer Science 2025-10-30 Chi Qiu , Wen Chen , Qingqing Wu , Fen Hou , Wanming Hao , Ruiqi Liu , Derrick Wing Kwan Ng

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…

Signal Processing · Electrical Eng. & Systems 2025-02-25 Yanzhao Hou , Guoning Wang , Chen Chen , Gaoze Mu , Qimei Cui , Xiaofeng Tao , Yuanmu Yang

Intelligent reflecting surface (IRS) is an emerging technology that is able to reconfigure the wireless channel via tunable passive signal reflection and thereby enhance the spectral and energy efficiency of wireless networks…

Information Theory · Computer Science 2022-10-17 Ming-Min Zhao , An Liu , Yubo Wan , Rui Zhang

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…

Networking and Internet Architecture · Computer Science 2024-09-17 Waqas Khalid , Heejung Yu , Farman Ali , Huiping Huang
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