Results 41 to 50 of about 637,226 (201)

Power quality enhancement in asymmetrical cascaded multilevel inverter using modified carrier level shifted pulse width modulation approach

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
New modified carrier‐based level shifted pulse width modulation approaches for single‐phase trinary dc source fed cascaded H‐bridge inverters are proposed in this article. In order to suppress the lower order harmonics, the carrier frequency is often tuned higher. However, switching and electromagnetic interference problems have a significant influence
Arun Vijayakumar   +4 more
wiley   +1 more source

Blind Joint Soft-Detection Assisted Slow Frequency-Hopping Multicarrier DS-CDMA [PDF]

open access: yes, 2000
A novel multiple-access scheme based on slow frequency-hopping multicarrier direct-sequence, code-division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrow-band ...
Yang, L-L., Hanzo, L.
core   +2 more sources

UEP Concepts in Modulation and Coding

open access: yesAdvances in Multimedia, 2010
First unequal error protection (UEP) proposals date back to the 1960's (Masnick and Wolf; 1967), but now with the introduction of scalable video, UEP develops to a key concept for the transport of multimedia data.
Werner Henkel   +5 more
doaj   +1 more source

Dual source novel nine level inverter (DSN2LI) design with minimum active devices and inherent polarity generation

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents a dual‐source novel nine‐level inverter (DSN2LI) featuring minimal devices. Utilizing eight switches, which include 2 bidirectional switching devices and 2 uneven dc links, the proposed DSN2LI generates nine levels. The DSN2LI employs the utilization of trinary geometric DC links.
Arun Vijayakumar   +3 more
wiley   +1 more source

Spectral Efficiency Maximization for Deliberate Clipping-Based Multicarrier Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2018
High peak-to-average power ratio (PAPR) is one of the common drawbacks of multicarrier signals at the transmitter. In this paper, we investigate the PAPR reduction of spectral efficient multicarrier faster-than-Nyquist (MFTN) signals, where the PAPR ...
Siming Peng   +4 more
doaj   +1 more source

Triple boost switched capacitor multilevel inverter (TB‐SCMLI) with reduced components and self‐voltage balance

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
The proposed TB‐SCMLI is able to provide seven levels of output voltage by balancing the voltage of two capacitors with the given control logic. The various SCMLIs are evaluated to determine the contribution of the suggested TB‐SCMLI topology's merits and downsides.
Md. Reyaz Hussan   +4 more
wiley   +1 more source

Throughput Analysis of Wavelet OFDM in Broadband Power Line Communications

open access: yesIEEE Access, 2018
Windowed orthogonal frequency-division multiplexing (OFDM) and wavelet OFDM have been proposed as multicarrier techniques for broadband communications over the power line network by the standard IEEE 1901.
Freddy A. Pinto-Benel   +2 more
doaj   +1 more source

Review of recent trends of advancements in multilevel inverter topologies with reduced power switches and control techniques

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
Some of the topologies with a fewer number of power switches are reviewed and scrutinized. An extensive analysis of the topologies, control strategy and applications are presented here, suggesting suitable multilevel inverter solutions to the known industrial application or new research.
Anurag Choudhary   +5 more
wiley   +1 more source

Modified SNR Gap Approximation for Resource Allocation in LDPC-Coded Multicarrier Systems

open access: yesIEEE Access, 2020
The signal-to-noise ratio (SNR) gap approximation provides a closed-form expression for the SNR required for a coded modulation system to achieve a given target error performance for a given constellation size. This approximation has been widely used for
Adriaan Suls   +3 more
doaj   +1 more source

Assessment of a Reconstructed Modulation Strategy for Energy Balance in Multilevel Cascade Inverters Varying the Modulation Index

open access: yesIET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents an analysis of the reconstructed modulators modulation strategy, a technique designed for energy balancing in DC‐to‐AC converters. The study evaluates the performance of this strategy, applied to a seven‐level multilevel cascade inverter. ABSTRACT This paper presents an experimental evaluation of a PWM modulation strategy based on
Yesenia Reyes‐Severiano   +5 more
wiley   +1 more source

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