Results 21 to 30 of about 498 (143)
Theoretical Analysis of Hole Punch Signal Conditioning for High Efficiency EER Power Amplifiers
EURASIP Journal on Wireless Communications and Networking, 2010 High efficiency and linearity can be achieved using Kahn's envelope elimination and restoration (EER) technique. However, when used with modulation schemes such as code division multiple access (CDMA) and orthogonal frequency division multiplexing ...
Abdul K. Mustafa, Mike Faulkner
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Integrating Radio-Over-Fiber Communication System and BOTDR Sensor System
Sensors, 2020 In this paper, we propose and experimentally demonstrate for the first time, the integration of a radio-over-fiber (RoF) communication system and a Brillouin optical time-domain reflectometry (BOTDR) distributed sensor system using a single optical fiber
Wai Pang Ng +7 more
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IET Communications, 2022 Direct RF sampling has been suggested as a solution for receivers that are flexible in frequency and across standards, while utilising only a single radio frequency front‐end.
Stephen Henthorn +2 more
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Sensors, 2018 The high demand for multimedia applications in environmental monitoring, invasion detection, and disaster aid has led to the rise of wireless sensor network (WSN).
Fan Yang +5 more
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Advanced Science, EarlyView.The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang +6 more
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Bidirectional single sideband transmission of Millimeter Wavesover Fiber for 5G Mobile Networks
TecnoLógicas, 2018 This study proposes, experimentally demonstrates, and simulates anetwork architecture for the transport of millimeter waves (MMW) based on Radio over Fiber (RoF) techniques for the transport of signals in the fronthaul segment of
Alejandro Patiño-Carrillo +2 more
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
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Study on adaptive modulation in D2D communications over Nakagami-m fading channel
Tongxin xuebao, 2018 A novel adaptive modulation based on nondata-aided error vector magnitude (NDA-EVM) was proposed to solve the problem of lower spectral efficiency in device to device (D2D) communication over Nakagami-m fading channel.The NDA-EVM was used to evaluate the
Xiaoping ZENG +6 more
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Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets
Laser &Photonics Reviews, EarlyView.Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier +5 more
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Performance Analysis of Precoded MIMO PLC System Based on Two-Sided Jacobi SVD
Journal of Electrical and Computer Engineering, 2015 This paper evaluates the performance of closed loop multiple input multiple output power line communication (CL MIMO PLC) system based on enhanced zero-forcing (ZF) equalizer.
Hasna Kilani, Mohamed Tlich, Rabah Attia
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