期刊
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS
卷 21, 期 4, 页码 3175-3203出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/COMST.2019.2915981
关键词
Acoustic beams; Multiplexing; Optical fiber communication; Laser beams; Optical polarization; Antenna arrays; Space division multiplexing; orbital angular momentum; free space optics; optical fibers; vortex fibers; underwater wireless optical communication; radio frequency; millimeter waves; optical interconnects; optical switching; fiber nonlinearity; atmospheric turbulence; oceanic turbulence; crosstalk; adaptive optics
Time, polarization, and wavelength multiplexing schemes have been used to satisfy the growing need of transmission capacity. Using space as a new dimension for communication systems has been recently suggested as a versatile technique to address future bandwidth issues. We review the potentials of harnessing the space as an additional degree of freedom for communication applications including free space optics, optical fiber installation, underwater wireless optical links, on-chip interconnects, data center indoor connections, radio frequency, and acoustic communications. We focus on the orbital angular momentum (OAM) modes and equally identify the challenges related to each of the applications of spatial modes and the particular OAM modes in communication. We further discuss the perspectives of this emerging technology. Finally, we provide the open research directions and discuss the practical deployment of OAM communication links for different applications.
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