Results 11 to 20 of about 5,893,470 (283)
Visible light communications: multi-band super-Nyquist CAP modulation [PDF]
Optics Express, 2019 In this paper, we experimentally demonstrate the performance of a non-orthogonal multi-band super-Nyquist carrier-less amplitude and phase (m-SCAP) modulation for visible light communications (VLC).
Ghassemlooy, Zabih +14 more
core +13 more sources
Digital cancellation of multi-band passive inter-modulation based on Wiener-Hammerstein model
Digital Communications and NetworksUtilizing multi-band and multi-carrier techniques enhances throughput and capacity in Long-Term Evolution (LTE)-Advanced and 5G New Radio (NR) mobile networks.
Jinxiang Liu +3 more
doaj +3 more sources
Reconfigurable multi-band quadrature ΣΔ modulators [PDF]
2011 7th Conference on Ph.D. Research in Microelectronics and Electronics, 2011 A new design methodology for reconfigurable quadrature band-pass ΣΔ modulator is proposed. The methodology uses architectures, which locks various range of IF frequencies to the sampling frequency for lower order quadrature modulators. A gereralized integrator based architecture is developed from the delay architectures.
Nithin Kumar Y.B. +2 more
openaire +1 more source
Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems [PDF]
, 2006 Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Yao, W, Qu, D, Song, Y, Jiang, T
core +1 more source
Reconfigurable resonant module for multi‐band antenna design
IET Microwaves, Antennas & Propagation, 2016 Novel resonant modules for constructing multi‐band mobile antennas are proposed in this study. The basic configuration of the module, named as the prototype module, is designed based on a series LC resonant circuit. By adding a varactor to the module, it can be transformed into a reconfigurable module.
Tsenchieh Chiu +2 more
openaire +1 more source
Multi-band carrier-less amplitude and phase modulation for VLC: An overview [PDF]
2017 First South American Colloquium on Visible Light Communications (SACVLC), 2017 © 2017 IEEE. The rapid development of solid-state lighting technologies has been the stimulus for visible light communications (VLC) to be the focus of enormous interest over the last decade. The key feature of simultaneous data transmission and illumination using white light-emitting diodes (LEDs) makes VLC a potential candidate for future power ...
P. Chvojka +5 more
openaire +1 more source
Gong-kuang zidonghua, 2014 For lack of research of nonlinear and linear solution algorithms of selected harmonics elimination pulse width modulation used in the same level topology of inverter, a nonlinear solution equation based on homotopy algorithm and a linear solution model ...
PAN Hongying, LI Song
doaj +1 more source
Nanomaterials, 2021 We propose a high quality-factor (Q-factor) multi-Fano resonance hybrid metamaterial waveguide (HMW) sensor. By ingeniously designing a metal/dielectric hybrid waveguide structure, we can effectively tailor multi-Fano resonance peaks’ reflectance ...
Hongyan Yang +7 more
doaj +1 more source
Study of selected harmonics elimination control technology of multi-level inverter
Gong-kuang zidonghua, 2014 In order to analyze nonlinear method of selected harmonics elimination PWM technique of multi-level inverter in-depth, several solution models of iterative algorithm were established, solution characteristics of these models were studied, and deficiency ...
YE Manyuan, LI Song, LI Bing
doaj +1 more source
Zero Guard Band Multi-Twin-SSB System in Single Fiber Bidirectional PON Transmission
IEEE Access, 2020 We propose a novel zero guard band (ZGB) multi-twin-SSB bidirectional passive optical network system which combines the multiband carrier-less amplitude phase and twin single sideband (SSB) modulation techniques. The multi-twin-SSB signal is generated at
Xiang Gao +4 more
doaj +1 more source