Results 41 to 50 of about 1,531,654 (151)

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

Multiuser Detection Assisted Time- and Frequency-Domain Spread Multicarrier Code-Division Multiple-Access

open access: yes, 2006
In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading.
Wei, H., Yang, L-L., Hanzo, L.
core   +1 more source

Spectrally Efficient OFDMA Lattice Structure via Toroidal Waveforms on the Time-Frequency Plane

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
We investigate the performance of frequency division multiplexed (FDM) signals, where multiple orthogonal Hermite-Gaussian carriers are used to increase the bandwidth efficiency.
Sultan Aldirmaz   +2 more
doaj   +2 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

Joint 2‐D LFM Modulation and Mismatched Filter Design in Dual‐Function Radar‐Communication System

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a joint 2‐D LFM modulation and mismatched filtering design for military‐grade dual‐function radar‐communication systems. The novel scheme modulates data onto both the initial frequency and chirp rate of LFM pulses, boosting data rates whilst preserving the constant‐envelope property critical for high‐power transmission.
Kehao Wang   +5 more
wiley   +1 more source

Performance of Broadband Multicarrier DS-CDMA using Space-Time Spreading-Assisted Transmit Diversity

open access: yes, 2005
In this contribution multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) using space–time spreading (STS)-assisted transmit diversity is investigated in the context of broadband communications over frequency-selective Rayleigh-fading ...
Yang, L-L., Hanzo, L.
core   +1 more source

RFI Suppression Method for High‐Frequency Passive Bistatic Radar Based on Angle‐Based High‐Order Singular Value Decomposition

open access: yesIET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
We propose a multidomain joint orthogonal subspace projection algorithm based on angle‐based high‐order singular value decomposition (HOSVD). By constructing a three‐dimensional range‐Doppler‐angle tensor from multidirectional beamformed data, the method exploits the distinct spatial directivity and strong range correlation of the RFI to jointly ...
Chunlin Sun   +3 more
wiley   +1 more source

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam   +5 more
wiley   +1 more source

Joint Decoupling Optimization of Frequency Offsets and Array Elements for Frequency Diverse Arrays

open access: yesInternational Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Frequency diverse array (FDA) has a distance‐angle–dependent beam direction map, which has a greater application advantage than phased array. However, due to the distance‐angle coupling and periodicity of its beam direction map, it makes the parameter information of the target obtained through FDA have ambiguous phenomena. Currently, researchers mostly
Yuming Lu   +5 more
wiley   +1 more source

Performance Evaluation of OTFS and OFDM in Rayleigh Fading Channel

open access: yesJournal of Engineering, Volume 2026, Issue 1, 2026.
Orthogonal time–frequency space (OTFS) modulation is a crucial technology for addressing the challenges of 5G and 6G networks. OTFS was developed to address the problems of signal weakness and quality loss in mobile environments, such as those experienced by a user in a fast‐moving car or train; this is achieved by reducing intercarrier interference ...
Marwa Y. Abdulla   +3 more
wiley   +1 more source

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