Results 101 to 110 of about 51,792 (292)

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

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

open access: yesLaser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil   +6 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

Employing Hybrid sub-Nyquist Sampling Rates to Support Heterogeneous Services of Varying Capacity in 25-Gbps DDM-OFDM-PON

open access: yesIEEE Photonics Journal, 2018
Delay-division-multiplexing (DDM) involves the use of signal preprocessing for the detection of data via sub-Nyquist analog-to-digital sampling, based on preallocated relative sampling delays among optical network users (ONUs) in an orthogonal frequency ...
Jhih-Hao Hsu   +7 more
doaj   +1 more source

Pupil Plane Multiplexing for Vectorial Fourier Ptychography

open access: yesLaser &Photonics Reviews, EarlyView.
This study proposes a cost‐effective, modality‐adaptive multichannel microscopy framework using pupil‐plane multiplexing. A custom pupil aperture at the Fourier plane encodes channel‐specific transfer functions with spectral or polarization filters, and model‐based reconstruction with channel‐dependent priors decodes them.
Hyesuk Chae   +5 more
wiley   +1 more source

Coherence‐Gated Mirau Interferometry for Single‐Shot Quantitative Phase Imaging and Motion Sensing

open access: yesLaser &Photonics Reviews, EarlyView.
This paper presents a compact add‐on module converting a Mirau or other on‐axis interferometer into a single‐shot quantitative phase imaging system using coherence gating and precise optical path matching. Demonstrations include time‐resolved imaging of human cells and streaming red blood cells, visualization of evaporation dynamics in liquid mixtures,
Petr Bouchal   +4 more
wiley   +1 more source

Orthogonal Frequency Division Multiplexing Modelling

open access: yes, 2021
This work is motivated by the need to understand the performance of Orthogonal Frequency Division Multiplexing (OFDM) and Filterbank Multicarrier (FBMC). Multicarrier techniques are widely being considered for the development of the telecommunication systems such as the Long Term Evolution (LTE) networks, 5th Generation (5G) and beyond.
openaire   +1 more source

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