Results 81 to 90 of about 1,226 (174)
Remote SensingIn this article, we propose a joint waveform based on universal filtered multicarrier (UFMC) chirp for radar jamming and communication joint systems. Modulation of radar jamming chirp signals and communication signals on different subcarrier groups in ...
Gaogao Liu +4 more
doaj +1 more source
Magnetism in the single-band Hubbard model
, 1998 A self-consistent spectral density approach (SDA) is applied to the Hubbard model to investigate the possibility of spontaneous ferro- and antiferromagnetism.
Anderson +50 more
core +1 more source
An Enhanced Companding Algorithm for Universal Filtered Multi-Carrier System
ETRI JournalThis paper proposes a new companding scheme called three μ-law compand-ing to reduce the peak-to-average power ratio (PAPR) in a universal filtered multicarrier system. The proposed scheme is more flexible and provides better PAPR reduction and bit error
Vijaya Durga Chintala +3 more
doaj +1 more source
The Analysis of Service Convergence in an Optical Access Network
Engineering ProceedingsIn recent years, the increasing number of internet-connected devices has exceeded the capacity of fourth-generation (4G) cellular networks, leading to the development of fifth-generation (5G) technology, designed to offer higher speeds, greater bandwidth,
Erick Cifuentes +4 more
doaj +1 more source
Automatic Multicarrier Waveform Classification via PCA and Convolutional Neural Networks
IEEE Access, 2018 To make up the disadvantages of OFDM-QAM applied in 4G systems, some new non-orthogonal asynchronous PHY multicarrier techniques have been proposed for multiple 5G application scenarios, such as universal-filtered multicarrier (UFMC) and filterbank-based
Sirui Duan +3 more
doaj +1 more source
A Multi-Carrier Waveform Design for 5G and beyond Communication Systems
Mathematics, 2020 The next generation communication network (NGCN) is expected to provide higher spectral efficiency, low latency, large throughput and massive machine-to-machine type communications. In this regard, the design of the multi-carrier waveform (MCW) is posing
Imran Baig +4 more
doaj +1 more source
Spin-density-wave instability in graphene doped near the van Hove singularity
, 2011 We study the instability of the metallic state towards the formation of a new ground state in graphene doped near the van Hove singularity. The system is described by the Hubbard model and a field theoretical approach is used to calculate the charge and ...
Makogon, D. +3 more
core +2 more sources
Deep Learning Models For Symbol Detection in UFMC Systems
Mühendislik Bilimleri ve Araştırmaları DergisiThe limited availability of the frequency band in wireless communication systems is one of the major obstacles to achieving high-speed data transmission. To overcome this obstacle, multicarrier systems, which utilize the available frequency bandwidth most efficiently to ensure spectral efficiency and consequently high data rate transmission, are used ...
Fatma Kebire Bardak +1 more
openaire +2 more sources
IEEE Access, 2019 Universal filtered multi-carrier (UFMC) systems offer flexibility of filtering arbitrary number of subcarriers to suppress out of band emission while keeping the orthogonality between subcarriers and robustness to transceiver imperfections.
Lei Zhang +5 more
doaj +1 more source
On Spectral Coexistence of CP-OFDM and FB-MC Waveforms in 5G Networks
, 2017 Future 5G networks will serve a variety of applications that will coexist on the same spectral band and geographical area, in an uncoordinated and asynchronous manner.
Bader, Faouzi +2 more
core +2 more sources