Results 61 to 70 of about 11,208 (180)
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
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
A peak power reduction method for multicarrier transmission
ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2001 A method to reduce the peak-to-average power ratio (PAR) of multicarrier signals has been developed. The method enlarges the quadrature amplitude modulation (QAM) constellation size at tones so that several signal points represent the same information. It chooses a signal point among equivalent signal points that minimises PAR. The method achieved more
openaire +1 more source
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
, 2007 This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Hanzo, L, Jiang, M
core +2 more sources
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
Hexagonal Multicarrier Faster-Than-Nyquist Signaling
IEEE Access, 2017 Multicarrier faster-than-Nyquist (MFTN) signaling is a spectral efficient modulation scheme for future communication systems. In MFTN signaling, the intersymbol interference (ISI) and intercarrier interference (ICI) are introduced intentionally by the ...
Siming Peng +3 more
doaj +1 more source
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
Energy‐Efficient 8‐PAM Optical DAC Design for Visible Light Communication Systems
IET Optoelectronics, Volume 19, Issue 1, January/December 2025.This study presents a low‐cost, energy‐efficient optical DAC (ODAC) transmitter that drives high‐power LEDs to deliver eight‐level pulse‐amplitude–modulated signals while simultaneously providing room illumination. Hardware measurements confirm reliable high‐speed data transmission over typical indoor distances with high power efficiency. ABSTRACT This
Oğuzhan Başer +3 more
wiley +1 more source
IET Smart Grid, Volume 8, Issue 1, January/December 2025.Motivated by the recent extension of energy sharing across multiple energy types, a systematic review of key framework, technologies and implications pertinent to IES energy sharing is undertaken. By putting emphasis on the newest research in multi‐energy sharing, a broader vision of the roles and impacts of prosumers in future multi‐energy systems is ...
Huili Ye +6 more
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