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PIER PIER B PIER C PIER M PIER Letters
2020-11-05
Research Status and Prospects of Orbital Angular Momentum Technology in Wireless Communication
By
Feng Zheng,

    Dr. Feng Zheng

    Beijing University of Posts and Telecommunications

    China

    Homepage

Yijian Chen,

    Dr. Yijian Chen

    ZTE Corporation

    China

    Homepage

Siwei Ji,

    Dr. Siwei Ji

    Beijing University of Posts and Telecommunications

    China

    Homepage

Gaoming Duan

    Dr. Gaoming Duan

    Beijing University of Posts and Telecommunications

    China

    Homepage

Progress In Electromagnetics Research, Vol. 168, 113-132, 2020
doi:10.2528/PIER20091104
Abstract
It becomes more and more challenging to satisfy the long-term demand of transmission capacity in wireless networks if we limit our research within the frame of traditional electromagnetic wave characteristics (e.g., frequency, amplitude, phase and polarization). The potential of orbital angular momentum (OAM) for unleashing new capacity in the severely congested spectrum of commercial communication systems is generating great interest in wireless communication field. The OAM vortex wave/beam has different topological charges, which are orthogonal to each other. It provides a new way for multiplexing in wireless communications. Electromagnetic wave or synthetic beam carrying OAM has a spiral wavefront phase structure, which may provide a new degree of freedom or better orthogonality in spatial domain. In this paper, we introduce the fundamental theory of OAM. Then, OAM generation and reception methods are equally demonstrated. Furthermore, we present the latest development of OAM in wireless communication. We further discuss the controversial topic ``whether OAM provides a new degree of freedom'' and illustrate our views on the relationship between OAM and MIMO. Finally, we suggest some open research directions of OAM.
Citation
Feng Zheng, Yijian Chen, Siwei Ji, and Gaoming Duan, "Research Status and Prospects of Orbital Angular Momentum Technology in Wireless Communication," Progress In Electromagnetics Research, Vol. 168, 113-132, 2020.
doi:10.2528/PIER20091104
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