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As the traditional resources (frequency, time, space, etc.) are efficiently utilized, it becomes more and more challenging to satisfy the ever-lasting capacity-growing and users-boosting demand in wireless networks. Recently, the…

Signal Processing · Electrical Eng. & Systems 2018-04-23 Wenchi Cheng , Wei Zhang , Haiyue Jing , Shanghua Gao , Hailin Zhang

The plane wave based wireless communications have becoming more and more matured, along with the well utilization of the traditional resources such as time and frequency. To further increase the capacity for rapidly increasing capacity…

Signal Processing · Electrical Eng. & Systems 2024-08-14 Haiyue Jing , Wenchi Cheng , Xiang-Gen Xia , Hailin Zhang

To satisfy the increasing demands for transmission rates of wireless communications, it is necessary to use spatial resources of electromagnetic (EM) waves. In this context, EM information theory (EIT) has become a hot topic by integrating…

Information Theory · Computer Science 2024-10-10 Hui Xu , Jun Wei Wu , Zhen Jie Qi , Hao Tian Wu , Rui Wen Shao , Qiang Cheng , Jieao Zhu , Linglong Dai , Tie Jun Cui

Orbital angular momentum (OAM) in electromagnetic (EM) waves can significantly enhance spectrum efficiency in wireless communications without requiring additional power, time, or frequency resources. Different OAM modes in EM waves create…

Signal Processing · Electrical Eng. & Systems 2024-09-09 Runyu Lyu , Wenchi Cheng , Muyao Wang , Fan Qin , Tony Q. S. Quek

The orbital angular momentum (OAM) technique provides a new degree of freedom for information transmissions in millimeter wave communications. Considering the spatial distribution characteristics of OAM beams, a new OAM spatial modulation…

Networking and Internet Architecture · Computer Science 2016-12-19 Xiaohu Ge , Ran Zi , Xusheng Xiong , Qiang Li , Liang Wang

The orbital angular momentum (OAM) wireless communication technique is emerging as one of potential techniques for the Sixth generation (6G) wireless communication system. The most advantage of OAM wireless communication technique is the…

Networking and Internet Architecture · Computer Science 2021-12-10 Xusheng Xiong , Hanqiong Lou , Xiaohu Ge

In this diploma thesis we study the characteristics of electromagnetic fields carrying orbital angular momentum (OAM) by analyzing and utilizing results achieved in optics and then apply them to the radio domain to enable innovative radio…

Classical Physics · Physics 2009-05-05 Johan Sjöholm , Kristoffer Palmer

This study delves into the potential of harnessing the orbital angular momentum (OAM) property of electromagnetic waves in near-field and line-of-sight scenarios by utilizing large intelligent surfaces, in the context of holographic…

Signal Processing · Electrical Eng. & Systems 2023-08-08 Giulia Torcolacci , Nicolò Decarli , Davide Dardari

In this paper, different generations of mobile communication have been concisely mentioned. The need for advanced antenna systems capable of sending and receiving massive data is felt in the fifth generation of mobile communication. The…

Signal Processing · Electrical Eng. & Systems 2023-02-13 Seyed Ali Khorasani

Orbital angular momentum (OAM), which is considered as a novel way to achieve high capacity, has been attracted much attention recently. OAM signals emitted by uniform circular array (UCA) are widely regarded to go through the Bessel-form…

Information Theory · Computer Science 2024-09-02 Haiyue Jing , Wenchi Cheng , Wei Zhang , Hailin Zhang

Orbital angular momentum (OAM) has aroused a widespread interest in many fields, especially in telecommunications due to its potential for unleashing new capacity in the severely congested spectrum of commercial communication systems. Beams…

Applied Physics · Physics 2019-12-19 Rui Chen , Hong Zhou , Marco Moretti , Xiaodong Wang , Jiandong Li

Electromagnetic information theory (EIT) is one of the emerging topics for 6G communication due to its potential to reveal the performance limit of wireless communication systems. For EIT, the research foundation is reasonable and accurate…

Information Theory · Computer Science 2024-05-28 Zhongzhichao Wan , Jieao Zhu , Linglong Dai

Electromagnetic information theory (EIT) is an emerging interdisciplinary subject that integrates classical Maxwell electromagnetics and Shannon information theory. The goal of EIT is to uncover the information transmission mechanisms from…

Information Theory · Computer Science 2024-12-20 Jieao Zhu , Zhongzhichao Wan , Linglong Dai , Tie Jun Cui

Orbital angular momentum (OAM) mode multiplexing has the potential to achieve high spectrum-efficiency communications at the same time and frequency by using orthogonal mode resource. However, the vortex wave hollow divergence…

Information Theory · Computer Science 2024-08-05 Ruirui Chen , Wenchi Cheng , Jinyang Lin , Liping Liang

In wireless communications, electromagnetic theory and information theory constitute a pair of fundamental theories, bridged by antenna theory and wireless propagation channel modeling theory. Up to the fifth generation (5G) wireless…

Information Theory · Computer Science 2024-01-18 Cheng-Xiang Wang , Yue Yang , Jie Huang , Xiqi Gao , Tie Jun Cui , Lajos Hanzo

The orbital angular momentum (OAM) wireless communication technology is widely studied in recent literatures. But the atmospheric turbulence is rarely considered in analyzing the capacity of OAM-based millimeter wave (OAM-mmWave)…

Signal Processing · Electrical Eng. & Systems 2019-09-11 Hanqiong Lou , Xiaohu Ge , Qiang Li

Traditional massive multiple-input multiple-output (MIMO) information theory adopt non-physically consistent assumptions, including white-noised, scalar-quantity, far-field, discretized, and monochromatic EM fields, which mismatch the…

Information Theory · Computer Science 2023-06-27 Jieao Zhu , Zhongzhichao Wan , Linglong Dai , Mérouane Debbah , H. Vincent Poor

The channel is one of the five critical components of a communication system, and its ergodic capacity is based on all realizations of statistic channel model. This statistical paradigm has successfully guided the design of mobile…

Information Theory · Computer Science 2025-02-19 Jianhua Zhang , Li Yu , Shaoyi Liu , Yichen Cai , Yuxiang Zhang , Hongbo Xing , Tao jiang

Orbital angular momentum (OAM), providing the orthogonality among different OAM modes, has attracted much attention to significantly increase spectrum efficiencies (SEs) and enhance the anti-jamming results of wireless communications.…

Signal Processing · Electrical Eng. & Systems 2024-07-30 Kexin Zheng , Wenchi Cheng , Liping Liang

The congestion of the radio frequency bands imposes serious limitations on the capacity and capability of modern wireless information infrastructures. One approach to enable frequency re-use is to exploit other physical conserved quantities…

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