Results 1 to 10 of about 49,907 (258)
Analysis and Digital Predistortion of in-Band Cross Modulation in Concurrent Multi-Band Transmitters
IEEE Access, 2022 In multiband transmitters where two or more radios share the same power amplifier (PA), interferences can usually be kept below an acceptable level with the help of multi-band digital predistortion (DPD) techniques.
Yunsik Hahn +5 more
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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
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Utilization of multi-band OFDM modulation to increase traffic rate of phosphor-LED wireless VLC
Optics Express, 2015 To increase the traffic rate in phosphor-LED visible light communication (VLC), a multi-band orthogonal frequency division multiplexed (OFDM) modulation is first proposed and demonstrated. In the measurement, we do not utilize optical blue filter to increase modulation bandwidth of phosphor-LED in the VLC system.
Chien-Hung Yeh, Chi-Wai Chow
exaly +3 more sources
Research of Large Capacity Optical Transmission System based on S/C/L Band
Guangtongxin yanjiu, 2022 The optical transmission system based on all-band is considered to be one of the methods to effectively improve the transmission capacity of optical communication.
Xu ZHANG +3 more
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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
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JPhys Photonics, 2023 High integration of modern microwave circuits and systems puts forward higher requirements for multi-function and electromagnetic compatibility (EMC) performance of transmission channels.
Ling Yun Niu +5 more
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Energies, 2023 Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band
Yu Zhang +7 more
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IEEE Photonics Journal, 2021 Telecommunication networks are becoming the central linking institution of the Fourth Industrial Revolution. To cope with the associated capacity and connectivity challenges, transportation networks may explore the -neglected so far- remaining ...
Dimitris Uzunidis +4 more
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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). We break the orthogonality between sub-bands in the frequency domain by compressing the spectrum, purposely overlapping them, and introducing inter-band ...
P. A. Haigh +4 more
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Study of five-level inverter double-band SHEPWM control method
Gong-kuang zidonghua, 2014 A kind of five-level inverter double-band SHEPWM control method was proposed combining Walsh transformation with SHEPWM program which can broaden modulation ratio of multi-level inverter.
YE Manyuan, CAI Hong, LI Bing, LI Song
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