Results 11 to 20 of about 617,901 (335)
Broadband satellite multimedia [PDF]
IET Communications, 2010 The broadband satellite multimedia (BSM) architecture standardised by ETSI defines a satellite independent service access point (SI-SAP) interface layer that separates the satellite independent features of the upper layers from the satellite dependant features of the lower layers, and provides a mechanism to carry IP-based protocols over these ...
Hu Y. F. +7 more
openaire +4 more sources
Biorthogonal Fourier transform for multichirp-rate signal detection over dispersive wireless channel
EURASIP Journal on Wireless Communications and Networking, 2018 Biorthogonal Fourier transform (BFT), consistent with the matched signal transform (MST), has been introduced to demodulate the M-ray chirp-rate signal which possesses good orthogonality in the BFT domain.
Lin Zheng +3 more
doaj +1 more source
Robust Resource Allocation for Indoor Self-Blockage Millimeter Wave Device-to-Device Communications
IEEE Open Journal of the Communications Society, 2022 The advancement of millimeter wave (mmWave) technology can meet the requirements of large amounts of data communications among intelligent devices for indoor scenarios. However, reducing interference in an enclosed region is still challenging because the
Haie Dou +5 more
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A Semiempirical MIMO Channel Model in Obstructed Viaduct Scenarios on High-Speed Railway
International Journal of Antennas and Propagation, 2014 A semiempirical multiple-input multiple-output (MIMO) channel model is proposed for high-speed railway (HSR) viaduct scenarios. The proposed MIMO model is based on the combination of realistic single-input single-output (SISO) channel measurement results
Tao Zhou +3 more
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3D Fourier Ptychographic Microscopy Based on the Beam Propagation Method and Time-Reversal Scheme
IEEE Access, 2019 3D Fourier ptychographic microscopy can recover objects with high resolution across large volumes, which is very challenging in 3D imaging particularly because multiple scattering may occur within the sample.
Yongbing Zhang +4 more
doaj +1 more source
In situ magnetometry study on the origin of anomalously capacity in transition metal sulfides
ChemPhysMater, 2023 Cobalt sulfides are considered as promising candidates for lithium-ion battery (LIB) anode materials with high energy densities. Their energy storage mechanism is widely understood to involve the traditional intercalation and conversion reaction. However,
Yan Liu +10 more
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RF Spectrum Sensing Based on an Overdamped Nonlinear Oscillator Ring for Cognitive Radios
Sensors, 2016 Existing spectrum-sensing techniques for cognitive radios require an analog-to-digital converter (ADC) to work at high dynamic range and a high sampling rate, resulting in high cost.
Zhi-Ling Tang, Si-Min Li, Li-Juan Yu
doaj +1 more source
Design of Optical Tunnel Switching Networks for Big Data Applications
Applied Sciences, 2020 In this paper, we proposed large-scale optical tunnel switching networks based on the Torus topology network with WSS (Wavelength Selective Switch) for future big data applications.
Yuh-Jiuh Cheng +3 more
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Investigation of MIMO Channel Characteristics in a Two-Section Tunnel at 1.4725 GHz
International Journal of Antennas and Propagation, 2017 This paper presents results from a wide band single-input–single-output (SISO) and 16 × 16 virtual multiple-input–multiple-output (MIMO) measurement campaign at a center frequency of 1.4725 GHz in a 100-meter long tunnel laboratory which is terminated by
Rongchen Sun +5 more
doaj +1 more source
International Journal of Antennas and Propagation, 2016 Based on realistic measurements in China, shadowing characteristics at the frequency of 2350 MHz were investigated in typical High-Speed Railway environments.
Liu Liu +4 more
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