Results 41 to 50 of about 10,985 (203)

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

PAPR reduction in CP-OFDM (5G) using hybrid technique

open access: yesActa Polytechnica, 2023
The Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) is a 5G multicarrier waveform that offers great data speeds and improvements in spectrum utilisation.
Azlan Yusof   +2 more
doaj   +1 more source

Five-level selective harmonic elimination PWM strategies and multicarrier phase-shifted sinusoidal PWM: A comparison [PDF]

open access: yes, 2005
The multicarrier phase-shifted sinusoidal pulse-width modulation (MPS-SPWM) technique is well-known for its important advantage of offering an increased overall bandwidth as the number of carriers multiplied with their equal frequency directly controls ...
Agelidis, V.G.   +3 more
core   +1 more source

Discrete Multitone Modulation for Maximizing Transmission Rate in Step-Index Plastic Optical Fibres [PDF]

open access: yes, 2009
The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s.
Andreas Bluschke   +10 more
core   +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

Statistical Modeling of Bit-Error-Rates in Asynchronous Multicarrier CDMA and Direct-Sequence CDMA Systems [PDF]

open access: yes, 2004
This paper presents a method for modeling the bit-error-rate (BER) probability density functions (pdf) of asynchronous Multicarrier Code Division Multiple Access (MC-CDMA) and Direct-Sequence Code Division Multiple Access (DS-CDMA) systems.
Carey, Daniel   +2 more
core   +2 more sources

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

Towards reducing the gap between PMEPR of multicarrier and single carrier signals [PDF]

open access: yes, 2005
It has recently been shown that by altering the sign of each subcarrier in a multicarrier system significant reduction in the peak to mean envelope power (PMEPR) can be obtained. In fact, the PMEPR can even be made a constant independent of the number of
Hassibi, Babak, Sharif, Masoud
core  

Dct Type-Iii For Multicarrier Modulation

open access: yes, 2011
Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Domínguez Jiménez, María Elena   +3 more
openaire   +4 more sources

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

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