Results 91 to 100 of about 49,792 (241)

Multiband Real-Time Coherent Optical OFDM Reception up to 110 Gb/s with 600-km Transmission

open access: yesIEEE Photonics Journal, 2010
We demonstrate field-programmable gate array (FPGA)-based multiband orthogonal frequency-division multiplexing (OFDM) signal reception after 600-km standard single-mode fiber (SSMF) transmission and 400-ps differential-group delay (DGD) at 110-Gb/s.
Simin Chen, Yiran Ma, William Shieh
doaj   +1 more source

Orthogonal Frequency Division Multiplexing Timing Synchronization in Multi-Band Orthogonal Frequency Division Multiplexing Ultra-Wideband Systems [PDF]

open access: yesAmerican Journal of Applied Sciences, 2010
Problem statement: MB-OFDM UWB systems have attractive features and received a great attention. It has the capability of sending/receiving data at rates in access of 100 Mbits sec-1. Owing to the sensitivity of OFDM systems to synchronization errors, a fast synchronization algorithm is required to discern for the start of OFDM symbol.
openaire   +1 more source

Wearable fabric electronics for sensing, memory and neuromorphic computing applications

open access: yesFlexMat, EarlyView.
Overview of textile electronic devices for sensing, memory and neuromorphic computing applications. Abstract With the advent of the big data era, traditional Von Neumann architecture is facing an energy consumption bottleneck due to separated memory and computing units, inspiring the research of brain‐like neuromorphic computing devices for artificial ...
Bo Sun, Lin Lu, Jialin Meng, Tianyu Wang
wiley   +1 more source

Non-Orthogonal Multicarrier Waveform for Radar With Communications Systems: 24 GHz GFDM RadCom

open access: yesIEEE Access, 2019
In this paper, we propose the usage of Generalized Frequency Division Multiplexing (GFDM), a non-orthogonal multicarrier waveform for radar. We presented a novel method that cancels the effect of interference caused by the non-orthogonality of GFDM ...
Jessica B. Sanson   +3 more
doaj   +1 more source

Orthogonal frequency division multiplexing

open access: yes, 2016
The contribution serves as a preview of the OFDM modulation signal, which is used in cellular and other wireless networks. We look closer on this problem and we are subsequently discussed general topics. That include an issue of mobile networks in their general concept and also more insight on the network 4 and 5 generations.
Šustek, Michal   +2 more
openaire   +1 more source

Bipolar photovoltaic effect in InSe/MoO3 van der Waals heterostructure for spontaneous light polarization detection

open access: yesInfoMat, EarlyView.
Bidirectional photo response in a two‐dimensional heterojunction photodetector controlled by light wavelength and polarization. Abstract Polarization is one of the most fundamental properties of light. Traditional polarization‐sensitive photodetectors, however, are limited in their ability to fully extract this information, as they translate the two ...
Ronghui Lin   +10 more
wiley   +1 more source

The synchronization of the orthogonal frequency division multiplexing system

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The results presented research OFDM system synchronization by using one of the basic properties of the continuous Fourier transform, characterized by the duality between a convolution in the time domain, and multiplying the frequency domain, which is not
R. A. Zhernosekov, V. T. Pershin
doaj  

Receiver design combining iteration detection and ICI compensation for SEFDM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
With the rapid development of wireless communication, the spectrum resource becomes rare, and research on utilization of limited spectrum resource becomes more popular, especially in fifth generation (5G) mobile communication system.
Min Jia   +4 more
doaj   +1 more source

Intrinsic chiroptical responsivity in self‐powered organic photodiodes for polarization‐tunable optical convolution

open access: yesInfoMat, EarlyView.
Self‐powered chiral organic photodiodes function as polarization‐sensitive convolutional filters for circularly polarized light‐driven optical convolutional neural networks. This conceptually innovative architecture enables dynamic weight modulation, bias‐free operation, and exceptional noise resilience, boosting feature extraction fidelity from 0.15 ...
Lixuan Liu   +9 more
wiley   +1 more source

An Improved Orthogonal Frequency Division Multiplexing System-Based Image Steganography Technique

open access: yesTikrit Journal of Engineering Sciences
OFDM technology is one of the most promising digital modulation methods to achieve the highest data transmission rates in all communication systems. However, the CFO problem constitutes one of the obstacles in-building wireless communication systems, as
Ali Y. Jaber   +2 more
doaj   +1 more source

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