Results 71 to 80 of about 11,372 (191)
A Novel FBMC/QAM Scheme to Eliminate the Error Floor in Multipath Channels
IET Communications, Volume 19, Issue 1, January/December 2025.This paper proposes a cyclic prefix–based filter bank multicarrier with quadrature amplitude modulation (CP‐FBMC/QAM) scheme to eliminate the error floor and simplify the receiver in multipath fading channels. Moreover, to avoid the increase of out‐of‐band (OOB) radiation caused by the CP insertion, we propose a prototype filter optimization problem ...
Yufeng Zhang, Xueqin Chen
wiley +1 more source
Throughput Analysis of Wavelet OFDM in Broadband Power Line Communications
IEEE 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
Performance Enhancement of Indoor VLC Systems Using DPSS‐Based DCO‐GFDM Modulation
IET Communications, Volume 19, Issue 1, January/December 2025.VLC is a promising solution for future wireless communication systems due to its high data rate, wide bandwidth, and enhanced security features. However, challenges such as high PAPR and OOB spectral leakage limit its performance. In this study, we propose the integration of DPSS with DCO‐GFDM to enhance the performance of indoor VLC systems.
Amin Emami +2 more
wiley +1 more source
Energy Harvesting for Secure OFDMA Systems
, 2014 Energy harvesting and physical-layer security in wireless networks are of great significance. In this paper, we study the simultaneous wireless information and power transfer (SWIPT) in downlink orthogonal frequency-division multiple access (OFDMA ...
Feng, Suili, Liu, Yuan, Zhang, Meng
core +1 more source
IET Communications, Volume 19, Issue 1, January/December 2025.This article proposes a hybrid SLM+PTS+RNN algorithm to mitigate the high PAPR challenge in UFMC systems for B5G networks. The method significantly improves power efficiency (by 30%–40%) while maintaining BER and PSD performance, outperforming traditional PAPR reduction techniques.
Arun Kumar +2 more
wiley +1 more source
Development of a dc-ac power conditioner for wind generator by using neural network [PDF]
, 2011 This project present of development single phase DC-AC converter for wind generator application. The mathematical model of the wind generator and Artificial Neural Network control for DC-AC converter is derived.
Yonis Buswig, Yonis Mohammed
core
Revised Dingo Optimization Algorithm for Frequency Offset Design in FDA‐MIMO Radar
Electronics Letters, Volume 61, Issue 1, January/December 2025.Our study explores the issues of grating lobes and parameters coupling between angle and range dimensions caused by the traditional frequency diverse array (FDA) with linear frequency offsets. We have proposed a revised dingo optimization algorithm with a Kaiser window function (RDOAK) algorithm based on FDA multiple‐input multiple‐output (FDA‐MIMO ...
Yimeng Zhang +3 more
wiley +1 more source
A Hybrid Single-Carrier/Multicarrier Transmission Scheme with Power Allocation
EURASIP Journal on Wireless Communications and Networking, 2007 We propose a flexible transmission scheme which easily allows to switch between cyclic-prefixed single-carrier (CP-SC) and cyclic-prefixed multicarrier (CP-MC) transmissions. This scheme takes advantage of the best characteristic of each scheme, namely,
Luc Féty +2 more
doaj +1 more source
Multicarrier Transmission Optimization in Elastic Optical Networks
2024 24th International Conference on Transparent Optical Networks (ICTON)This study investigates the trade-off between Quality of Transmission (QoT) performance and spectrum efficiency through low-margin operation of multicarriers. Margin reduction is enabled by implementing tight filtering and slight subcarriers overlap. Experiments conducted on a Software Defined Networking (SDN)-controlled Elastic Optical Network (EON ...
Radovic, Margita +3 more
openaire +3 more sources
Multicarrier transmission in a mobile radio channel
Electronics Letters, 1996 A multicarrier modulation system designed for communication in a multipath, mobile radio channel is described. The effect of introducing channel coding is investigated and the improvement in BER performance is shown. A comparison is made between the modulation schemes of DPSK and DQPSK.
openaire +1 more source