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The vortex electromagnetic wave carried by multiple orthogonal orbital angular momentum (OAM) modes in the same frequency band can be applied to the field of wireless communications, which greatly increases the spectrum efficiency. The…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Hongyun Jin , Wenchi Cheng , Haiyue Jing , Jingqing Wang , Wei Zhang

Following on from the increasing interest for electromagnetic waves carrying Orbital Angular Momentum (OAM), different configurations of antenna systems able to generate such beams have been proposed. However, in our opinion, a traditional…

Optics · Physics 2016-04-06 Andrea Cagliero , Assunta De Vita , Rossella Gaffoglio , Bruno Sacco

Orbital angular momentum (OAM) at radio frequency (RF) has attracted more and more attention as a novel approach of multiplexing a set of orthogonal OAM modes on the same frequency channel to achieve high spectral efficiency (SE). However,…

Information Theory · Computer Science 2021-12-02 Zhengjuan Tian , Rui Chen , Wen-Xuan Long , Hong Zhou , Marco Moretti

We explore the use of orbital-angular-momentum (OAM)-multiplexing to increase the capacity of free-space data transmission to moving platforms, with an added potential benefit of decreasing the probability of data intercept. Specifically,…

Orbital Angular Momentum (OAM) of light is a promising degree of freedom for next-generation communication. By exploiting the orthogonality of OAM modes, multi-channel division enables a linearly increase in communication performance…

Optics · Physics 2026-05-22 Junsu Kim , Hyunchae Chun , SeungRyong Park

Holographic multiple-input multiple-output (HMIMO) utilizes a compact antenna array to form a nearly continuous aperture, thereby enhancing higher capacity and more flexible configurations compared with conventional MIMO systems, making it…

Information Theory · Computer Science 2024-12-13 Li Wei , Tierui Gong , Chongwen Huang , Zhaoyang Zhang , Wei E. I. Sha , Zhi Ning Chen , Linglong Dai , Merouane Debbah , Chau Yuen

Traditional channel capacity based on the discrete spatial dimensions mismatches the continuous electromagnetic fields. For the wireless communication system in a limited region, the spatial discretization may results in information loss…

Information Theory · Computer Science 2023-02-21 Zhongzhichao Wan , Jieao Zhu , Zijian Zhang , Linglong Dai , Chan-Byoung Chae

Orbital angular momentum (OAM)-carrying beams have gained significant attention in recent years due to their unique properties and potential to improve spectral efficiency and data transmission rates in optical communication systems.…

Orbital angular momentum (OAM) carried electromagnetic waves have the potential to improve spectrum efficiency in optical and radio-frequency communications due to the orthogonal wavefronts of different OAM modes. However, OAM beams are…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Runyu Lyu , Wenchi Cheng , Muyao Wang , Wei Zhang

The vortex electromagnetic wave carried by multiple orthogonal orbital angular momentum (OAM) modes in the same frequency band can be applied to the field of wireless communications, which greatly increases the spectrum efficiency. The…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Hongyun Jin , Wenchi Cheng , Haiyue Jing , Jingqing Wang

This paper introduces a groundbreaking Line-of-Sight (LoS) Multiple-Input Multiple-Output (MIMO) communication architecture leveraging non-traditional Orbital Angular Momentum (OAM) beams. Challenging the conventional paradigm of…

Signal Processing · Electrical Eng. & Systems 2024-08-21 Yufei Zhao , Xiaoyan Ma , Yong Liang Guan , Yile Liu , Afkar Mohamed Ismail , Xiaobei Liu , Siew Yam Yeo , Chau Yuen

Advancements in emerging technologies, e.g., reconfigurable intelligent surfaces and holographic MIMO (HMIMO), facilitate unprecedented manipulation of electromagnetic (EM) waves, significantly enhancing the performance of wireless…

Information Theory · Computer Science 2025-02-07 Li Wei , Shuai S. A. Yuan , Chongwen Huang , Jianhua Zhang , Faouzi Bader , Zhaoyang Zhang , Sami Muhaidat , Merouane Debbah , Chau Yuen

Orbital angular momentum (OAM) has attracted much attention for radio vortex wireless communications due to the orthogonality among different OAM-modes. To maintain the orthogonality among different OAM modes at the receiver, the strict…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Wenchi Cheng , Haiyue Jing , Wei Zhang , Zan Li , Hailin Zhang

Light carrying orbital angular momentum (OAM) has great potential in enhancing the information channel capacity in both classical and quantum optical communications. Long distance optical communication requires the wavelengths of light are…

Quantum Physics · Physics 2016-02-03 Zhi-Yuan Zhou , Yan Li , Dong-Sheng Ding , Wei Zhang , Shuai Shi , Bao-Sen Shi , Guang-Can Guo

Free space optical (FSO) communication can exploit mode-division multiplexing using orthogonal spatial modes of Laguerre Gaussian beams, such as orbital angular momentum (OAM) modes, wherein OAM multiplexing offers potentially infinite…

Electromagnetic information theory (EIT) is an interdisciplinary subject that serves to integrate deterministic electromagnetic theory with stochastic Shannon's information theory. Existing EIT analysis operates in the continuous space…

Information Theory · Computer Science 2024-06-10 Jieao Zhu , Vincent Y. F. Tan , Linglong Dai

Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectrum efficiencies. However, there are still big challenges in the…

Signal Processing · Electrical Eng. & Systems 2020-07-07 Rui Chen , Wen-Xuan Long , Xiaodong Wang , Jiandong Li

We use metasurfaces to enable acoustic orbital angular momentum (a-OAM) based multiplexing in real-time, postprocess-free and sensor-scanning-free fashions to improve the bandwidth of acoustic communication, with intrinsic compatibility and…

Applied Physics · Physics 2017-09-01 Xue Jiang , Bin Liang , Jian-chun Cheng , Cheng-Wei Qiu

Orbital angular momentum (OAM) radars are able to estimate the azimuth angle and the rotation velocity of multiple targets without relative motion or beam scanning. Moreover, OAM wireless communications can achieve high spectral efficiency…

Signal Processing · Electrical Eng. & Systems 2022-05-12 Wen-Xuan Long , Rui Chen , Marco Moretti , Wei Zhang , Jiandong Li

In this paper, we introduce the Age of Incorrect Information (AoII) as an enabler for semantics-empowered communication, a newly advocated communication paradigm centered around data's role and its usefulness to the communication's goal.…

Information Theory · Computer Science 2022-10-12 Ali Maatouk , Mohamad Assaad , Anthony Ephremides