Results 51 to 60 of about 197 (147)

Joint Active User Detection, Timing Offset and Channel Estimation for FBMC‐Based Uplink Massive Access Systems

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
The robustness against timing offsets of filter bank multi‐carrier (FBMC) is appealing for grant‐free massive access scenarios that mainly adopt asynchronous transmissions. In this work, we propose a compressed sensing based algorithm for joint active user detection as well as timing offset and channel estimation in uplink communication under the ...
Yuhao Qi   +4 more
wiley   +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

Filter Optimization for MFTN-OQAM Systems

open access: yesIEEE Access, 2022
In this paper, a novel and effective method for designing the pulse shaping filter for multicarrier faster-than-Nyquist with offset quadrature amplitude modulation (MFTN-OQAM) systems is proposed.
Nghia H. Nguyen   +2 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

Design and Validation of the Physical Layer Functions of FBMC/OQAM Transceiver With Improved Residual Phase Error Correction

open access: yesIEEE Access, 2022
In this paper, we report experimental results on the development and improvement of the physical layer functions of a filter bank multicarrier with off-set quadrature amplitude modulation (FBMC/OQAM) transceiver using a testbed implemented with ...
Khaled A. Alaghbari   +4 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

Hybrid PAPR Reduction Scheme for FBMC/OQAM Systems Based on Multi Data Block PTS and TR Methods

open access: yesIEEE Access, 2016
The filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is being studied by many researchers as a key enabler for the fifth-generation air interface. In this paper, a hybrid peak-to-average power ratio (PAPR) reduction scheme
Han Wang   +3 more
doaj   +1 more source

2 $\times$ 2 MIMO FBMC-OQAM Signal Transmission Over a Seamless Fiber–Wireless System in the W-band

open access: yesIEEE Photonics Journal, 2018
Offset-QAM-based filterbank multicarrier (FBMC-OQAM) is an attractive modulation candidate to increase the spectral efficiency of radio-over-fiber and fiber–wireless systems.
Francois Rottenberg   +6 more
doaj   +1 more source

Channel estimation method for FBMC/OQAM system based on pilot

open access: yes上海师范大学学报. 自然科学版, 2016
Compared with orthogonal frequency division multiplexing technology (OFDM),filter bank multicarrier (FBMC) technique has higher spectrum using rate and easier achieved pulse shaping.It was seen as a potential replacement for OFDM as future 5G physical ...
GONG Shuai   +4 more
doaj   +1 more source

Alamouti code based on block repetition in FBMC/OQAM systems

open access: yesDigital Communications and Networks, 2022
In this paper, we address the Alamouti code in Filter-Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) and propose a novel block-wise Alamouti code, in which a repeated block is designed to eliminate the imaginary interference ...
Dejin Kong   +4 more
doaj   +1 more source

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