Results 371 to 380 of about 539,225 (413)
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Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform
, 1971The Fourier transform data communication system is a realization of frequency-division multiplexing (FDM) in which discrete Fourier transforms are computed as part of the modulation and demodulation processes.
B. Weinstein, P. Ebert
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Layered-Division-Multiplexing: Theory and Practice
IEEE transactions on broadcasting, 2016As the next generation digital TV (DTV) standard, the ATSC 3.0 system is developed to provide significant improvements on the spectrum efficiency, the service reliability, the system flexibility, and system forward compatibility.
Liang Zhang +8 more
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Optics Letters, 2004
Polytopic multiplexing is a new method of overlapping holograms that, when combined with other multiplexing techniques, can increase the capacity of a volume holographic data storage system by more than a factor of 10. This is because the method makes possible the effective utilization of thick media.
Ken, Anderson, Kevin, Curtis
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Polytopic multiplexing is a new method of overlapping holograms that, when combined with other multiplexing techniques, can increase the capacity of a volume holographic data storage system by more than a factor of 10. This is because the method makes possible the effective utilization of thick media.
Ken, Anderson, Kevin, Curtis
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Visible‐Frequency Metasurface for Structuring and Spatially Multiplexing Optical Vortices
Advances in Materials, 2016A multifocus optical vortex metalens, with enhanced signal-to-noise ratio, is presented, which focuses three longitudinal vortices with distinct topological charges at different focal planes.
M. Q. Mehmood +13 more
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IEEE Transactions on Wireless Communications, 2017
Mode division multiplexing (MDM) using orbital angular momentum (OAM) is a recently developed physical layer transmission technique, which has obtained intensive interest among optics, millimeter-wave, and radio frequency due to its capability to enhance
Weite Zhang +6 more
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Mode division multiplexing (MDM) using orbital angular momentum (OAM) is a recently developed physical layer transmission technique, which has obtained intensive interest among optics, millimeter-wave, and radio frequency due to its capability to enhance
Weite Zhang +6 more
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ACS Nano, 2017
Optical encoding together with color multiplexing benefits on-site detection, and enriching the components with narrow emissions from lanthanide could greatly increase the coding density.
Hao Dong +5 more
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Optical encoding together with color multiplexing benefits on-site detection, and enriching the components with narrow emissions from lanthanide could greatly increase the coding density.
Hao Dong +5 more
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Modular reciprocal multiplexers
International Journal of RF and Microwave Computer-Aided Engineering, 2016This article presents a modular reciprocal multiplexer in which the number of channels can be reduced or expanded. The proposed configuration is based on reactive loads designed to substitute channel filters. This is at the same time easy to manufacture and easy to reconfigure as reactive loads are conceived, so as not to modify the characteristics of ...
GENTILI, GIAN GUIDO +4 more
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Orthogonal frequency division multiplexing with index modulation
Global Communications Conference, 2012In this paper, a novel orthogonal frequency division multiplexing (OFDM) scheme, which is called OFDM with index modulation (OFDM-IM), is proposed for frequency-selective fading channels.
E. Başar +3 more
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Der Hautarzt, 1996
A 24-year-old woman from Peru presented with multiple dark-blue skin lesions. The asymptomatic cystic nodules had increased in number and size over the post 7 years. They were found on the abdomen and back. When one of the cysts was punctured a bunch of vellus hairs was observed. The diagnosis of steatocystoma multiplex was confirmed by histology.
A V, Beyer, D, Vossmann
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A 24-year-old woman from Peru presented with multiple dark-blue skin lesions. The asymptomatic cystic nodules had increased in number and size over the post 7 years. They were found on the abdomen and back. When one of the cysts was punctured a bunch of vellus hairs was observed. The diagnosis of steatocystoma multiplex was confirmed by histology.
A V, Beyer, D, Vossmann
openaire +2 more sources
On-chip noninterference angular momentum multiplexing of broadband light
Science, 2016A twist on optical multiplexing Information can be encoded using various properties of light. Optical multiplexing frequency, brightness, and polarization have played crucial roles in information technologies, high-capacity data storage, high-speed ...
H. Ren +3 more
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