Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Downsampling01:20

Downsampling

144
When considering a sampled sequence with zero values between sampling instants, one can replace it by taking every N-th value of the sequence. At these integer multiples of N, the original and sampled sequences coincide. This process, known as decimation, involves extracting every N-th sample from a sequence, thereby creating a more efficient sequence.
The Fourier transform of the decimated sequence reveals a combination of scaled and shifted versions of the original spectrum. This...
144
Discrete-Time Fourier Series01:20

Discrete-Time Fourier Series

241
The Discrete-Time Fourier Series (DTFS) is a fundamental concept in signal processing, serving as the discrete-time counterpart to the continuous-time Fourier series. It allows for the representation and analysis of discrete-time periodic signals in terms of their frequency components. Unlike its continuous counterpart, which utilizes integrals, the calculation of DTFS expansion coefficients involves summations due to the discrete nature of the signal.
For a discrete-time periodic signal x[n]...
241
Design Example01:23

Design Example

321
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
321
The Delta-to-Delta Circuit01:17

The Delta-to-Delta Circuit

570
In a delta-delta configuration, the source and the load are connected in a delta manner, forming a closed loop that divides the network into three distinct phases. This configuration makes the phase voltages identical to line voltages. Assuming the sources are in positive sequence, the phase voltages can be expressed directly without having a neutral wire.
570
The Y-to-Delta Circuit01:19

The Y-to-Delta Circuit

414
A balanced wye-to-delta circuit comprises balanced Y-connected voltage sources and delta-connected loads with no neutral line connection.
The initial step in analyzing a wye-to-delta circuit is to assume a positive phase sequence. These phase voltages are then utilized to calculate the line voltages that occur directly across the delta-connected load impedances. Van, Vbn, and Vcn are the phase voltages in wye, and Vab, Vbc, and Vca are the line voltages for a delta circuit. The relation between...
414
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.0K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Hemodynamic effects of synchronous and asynchronous independent lung ventilation with different levels of positive end-expiratory pressure and tidal volumes on unilateral lung injury in dogs].

Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases·2010
Same author

[Study on the immuno-effects and influencing factors of Chinese hamster ovary (CHO) cell hepatitis B vaccine among adults, under different dosages].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2010
Same author

Assemblies of fluorine containing bent-shaped liquid crystal molecules studied by using scanning tunneling microscopy.

Journal of nanoscience and nanotechnology·2010
Same author

Carbon nanotubes induce secondary structure changes of bovine albumin in aqueous phase.

Journal of nanoscience and nanotechnology·2010
Same author

[Immunogenicity and protective efficacy of pertactin recombinants against Bordetella bronchiseptica challenge].

Wei sheng wu xue bao = Acta microbiologica Sinica·2010
Same author

[Analysis of the electrocardiographic findings in 288 patients with acute pulmonary thromboembolism].

Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases·2010
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

Related Experiment Video

Updated: Jun 16, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.8K

Digital mobile fronthaul scheme based on diff-delta-sigma modulation and OCT precoding.

Xiongwei Yang, Jianjun Yu, Jianyu Long

    Optics Letters
    |August 15, 2024
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a digital mobile fronthaul (MFH) solution for 65536-QAM signals using diff-delta-sigma modulation (D-DSM) and orthogonal circulant matrix transform (OCT) precoding. The power superposition scheme offers efficient performance for future 6G networks.

    More Related Videos

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    10.8K
    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
    11:34

    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

    Published on: December 3, 2013

    15.6K

    Related Experiment Videos

    Last Updated: Jun 16, 2025

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    9.8K
    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    10.8K
    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
    11:34

    High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

    Published on: December 3, 2013

    15.6K

    Area of Science:

    • Optical Communications
    • Signal Processing
    • Wireless Networks

    Background:

    • Digital mobile fronthaul (MFH) is crucial for high-capacity wireless systems.
    • 65536-Quadrature Amplitude Modulation (65536-QAM) signals present significant challenges for MFH due to bandwidth and noise requirements.
    • Existing MFH schemes struggle with quantization noise distribution and complexity.

    Purpose of the Study:

    • To experimentally demonstrate a novel digital MFH system for 65536-QAM signals.
    • To address the uneven distribution of in-band quantization noise (IBN) in MFH systems.
    • To evaluate different signal combination schemes for improved efficiency and performance.

    Main Methods:

    • Implementation of a digital MFH system utilizing a diff-delta-sigma modulation (D-DSM) scheme.
    • Integration of orthogonal circulant matrix transform (OCT) precoding with the D-DSM scheme.
    • Comparison of Gray coding and power superposition signal combination schemes within the D-DSM framework.

    Main Results:

    • Successful demonstration of digital MFH for 65536-QAM signals.
    • Achieved a quantization signal-to-noise ratio (SNR) gain of approximately 1.5 dB by combining D-DSM with OCT precoding.
    • Identified power superposition as a scheme with lower computational complexity and reduced saturation effect impact compared to Gray coding.

    Conclusions:

    • The D-DSM scheme combined with OCT precoding effectively manages in-band quantization noise.
    • The power superposition scheme presents a practical and efficient alternative for signal combination in D-DSM MFH.
    • This D-DSM solution, incorporating OCT precoding and power superposition, offers a viable approach for future 6G digital mobile fronthaul systems.