Results 61 to 70 of about 1,418 (179)

Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform

open access: yesICT Express, 2019
Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is one of the best waveforms used in 5G communications. The FBMC is a multicarrier modulation system (MCM) which suffers from high peak to average power ratio (PAPR) causing
Imad A. Shaheen   +3 more
doaj   +1 more source

Reducing the Peak to Average Power Ratio of UFMC Waveform for Beyond 5G System Using Hybrid SLM+PTS+RNN Algorithms

open access: yesIET 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

Compressive Sensing-Based Channel Estimation for FBMC-OQAM System Under Doubly Selective Channels

open access: yesIEEE Access, 2019
Filter-bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) has been considered as an alternative scheme to orthogonal frequency division multiplexing (OFDM).
Zongmiao He   +5 more
doaj   +1 more source

Supervised learning and frequency domain averaging‐based adaptive channel estimation scheme for filterbank multicarrier with offset quadrature amplitude modulation

open access: yesETRI Journal, 2021
Filterbank multicarrier with offset quadrature amplitude modulation (FBMC‐OQAM) is an attractive alternative to the orthogonal frequency division multiplexing (OFDM) modulation technique.
Vibhutesh Kumar Singh   +3 more
doaj   +1 more source

Analysis of Filtered Multicarrier Modulation Techniques Using Different Windows for 5G and Beyond Wireless Systems

open access: yesWireless Communications and Mobile Computing, Volume 2024, Issue 1, 2024.
In contemporary wireless communication systems, multicarrier modulation schemes have become widely adopted over single‐carrier techniques due to their improved capacity to address challenges posed by multipath fading channels, leading to enhanced spectral efficiency.
Sourav Debnath   +3 more
wiley   +1 more source

Preamble Design With Interference Cancellation for Channel Estimation in MIMO-FBMC/OQAM Systems

open access: yesIEEE Access, 2018
Multiple-input multiple-output filter bank multicarrier with offset quadrature amplitude modulation (MIMO-FBMC/OQAM) system utilizes the multiple antennas technology, and it can provide more advantages than conventional FBMC/OQAM system.
Han Wang   +3 more
doaj   +1 more source

Evaluation and Analysis of FBMC/OQAM Systems Based on Pulse Shaping Filters

open access: yesIEEE Access, 2020
Cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) is the most widespread multicarrier modulation scheme. However, the use of a rectangular filter in CP-OFDM causes poor out-of-band (OoB) radiation.
Heba M. Abdel-Atty   +2 more
doaj   +1 more source

Pulse shape adaptivity in OFDM/OQAM systems

open access: yesProceedings of the 2008 International Conference on Advanced Infocomm Technology - ICAIT '08, 2008
Adaptation is crucial to realise high data rate transmission in multicarrier communication systems over dispersive channels. Apart from rate/power adaptation enabled by orthogonal frequency division multiplexing (OFDM), OFDM/offset QAM (OFDM/OQAM) systems provide possibility to adjust pulse shapes depending on the channel characteristics. In this paper
Jinfeng Du, Svante Signell
openaire   +3 more sources

Ofdm-oqam as spectrum sensing technique [PDF]

open access: yes, 2012
El sensado del espectro es una función clave para acceder a éste dinámicamente. Diversas técnicas de comunicación multiportadora basadas en bancos de filtros han sido propuestas como candidatas potenciales para la capa física de usuarios secundarios, ya ...
Cárdenas, Carlos Henry Mendoza   +1 more
core   +1 more source

An Efficient Preamble Design Based on Comb-Type Pilots for Channel Estimation in FBMC/OQAM Systems

open access: yesIEEE Access, 2018
In this paper, we propose an efficient preamble design based on comb-type pilots (CTP) for channel estimation in filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) systems.
Wei Li, Daiming Qu, Tao Jiang
doaj   +1 more source

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