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

Maximum Power Transfer01:16

Maximum Power Transfer

706
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
706
Maximum Power Flow and Line Loadability01:23

Maximum Power Flow and Line Loadability

504
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
504
Cascaded Op Amps01:16

Cascaded Op Amps

966
Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
966
Transmission Line Design Considerations01:23

Transmission Line Design Considerations

516
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
516
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

979
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
979
The Maximum Power Transfer Theorem01:20

The Maximum Power Transfer Theorem

1.0K
Consider a linear AC Thevenin equivalent circuit connected to a load impedance.
The load connected draws the current, and the circuit delivers the power to the load. The alternating current flowing through the load is determined using the rectangular form of voltages, currents, network impedance, and load impedance. The average power delivered to the load is obtained from the product of the square of current and load resistance.
1.0K

You might also read

Related Articles

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

Sort by
Same author

Reproductive factors and lung cancer risk in never-smoking women: a prospective cohort study.

BMC cancer·2026
Same author

Diagnostic accuracy of GeneReady MTB assay on sputum for detecting pulmonary tuberculosis: a prospective multicenter study in China.

Journal of clinical microbiology·2026
Same author

<i>Escherichia coli JNL-EC1</i> enhances type I IFN-mediated antiviral response during DNA and RNA virus infection.

Frontiers in microbiology·2026
Same author

An interpretable ultrasound-based deep learning system for early breast cancer in a Chinese population.

Insights into imaging·2026
Same author

Near-point-of-care diagnosis of tuberculosis with LyocartE MTB Assay: a multicentre diagnostic accuracy study.

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America·2026
Same author

CTLA-4 and CD154 expression on peripheral T cells as diagnostic biomarkers for pulmonary tuberculosis.

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases·2026
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: Dec 11, 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

10.2K

User-specific power level allocation optimization for OFDM-NOMA in a multi-user RoF system.

Jin Shi, You-Wei Chen, Jing He

    Optics Letters
    |August 16, 2020
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a digital signal processing technique to optimize power ratios in optical fiber and millimeter wave systems using orthogonal frequency division multiplexing-based non-orthogonal multiple access. The method ensures uniform signal-to-noise ratios for improved user performance without channel feedback.

    More Related Videos

    Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
    05:30

    Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

    Published on: September 8, 2023

    973
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.5K

    Related Experiment Videos

    Last Updated: Dec 11, 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

    10.2K
    Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
    05:30

    Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

    Published on: September 8, 2023

    973
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.5K

    Area of Science:

    • Optical and Wireless Communication Systems
    • Digital Signal Processing
    • Radio over Fiber Technologies

    Background:

    • Integrated optical fiber and millimeter wave (mmWave) systems face challenges in power allocation for orthogonal frequency division multiplexing (OFDM)-based non-orthogonal multiple access (NOMA).
    • Maintaining uniform signal-to-noise ratios (SNRs) across subcarriers is crucial for performance but difficult without channel information feedback, especially in mmWave radio over fiber (RoF) systems prone to high-frequency fading.

    Purpose of the Study:

    • To propose and validate a digital signal processing (DSP)-aided technique for optimizing user power ratios in integrated fiber-mmWave NOMA systems.
    • To achieve uniform SNRs among subcarriers without requiring channel state information feedback.
    • To enhance the performance of users in NOMA systems, particularly those with varying transmission distances and wireless propagation.

    Main Methods:

    • Development of a DSP-aided technique to manage power allocation in OFDM-NOMA systems.
    • Treating all subcarriers equally as independent channels for simplified power management.
    • Experimental investigation of NOMA scenarios involving near users (10 km fiber) and far users (longer fiber/wireless propagation).
    • Implementation of orthogonal circulant matrix transform and discrete Fourier transform for power ratio optimization.

    Main Results:

    • The proposed DSP technique effectively optimizes power ratios across all subcarriers to a uniform level.
    • In contrast to conventional OFDM-NOMA, the new method mitigates rapid variations in optimal power ratios caused by mmWave RoF system fading.
    • Significant improvements in user performance were demonstrated through experimental validation.

    Conclusions:

    • The DSP-aided technique provides an efficient solution for power ratio optimization in integrated fiber-mmWave NOMA systems.
    • Uniform SNR maintenance and improved user performance are achieved without the need for channel feedback.
    • The proposed method offers a robust approach to managing power allocation in complex communication environments.