Results 11 to 20 of about 33,351 (260)
Investigation of a novel structure for 6PolSK-QPSK modulation
Benefiting from the high spectrum efficiency and power efficiency, 6PolSK-QPSK (6-ary polarization-shift keying quadrature phase-shift keying) is a promising modulation format in coherent optical communication.
Yupeng Li +3 more
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Spectral Efficiency Improvement and Power Control Optimization of Massive MIMO Networks
Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication.
Xiu Zhang, Hao Qi, Xin Zhang, Liang Han
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Antenna array design by a contraction adaptive particle swarm optimization algorithm
Massive multiple input multiple output (MIMO) has drawn intensive attention of researchers for solving huge data transmissions in the fifth generation wireless communication.
Xin Zhang +3 more
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The traditional wired charging of robot has the disadvantages of inconvenient charging and manual operation for electrical connection. With the continuous development of radio power transmission, the disadvantages of wired charging are overcome, and the ...
Wenlan Gong +5 more
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Ultra-wideband (UWB) radar with strong anti-jamming performance and high-range resolution can be used to separate multiple human targets in a complex environment.
Wei Wang, Min Zhang, Dan Wang, Yu Jiang
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Abstract In recent days, Wireless Power Transfer (WPT) and harvesting energy received lots of attentions due to the necessity of having a flexible, suitable and secure source of energy. With the explosion of wireless technologies including wireless sensor network (WSN) like internet of things, such intelligent systems had highlighted ...
VEDADY MOGHADAM NANEHKARAN MOHAMMAD REZA +1 more
openaire +5 more sources
Electrical energy from power plants to industrial facilities and settlements is mostly transmitted by wire-connected air or underground lines covering vast territories. However, in some rare cases there is a need for wireless transmission of electrical power to objects located in hard-to-reach areas.
W. I. Kaganov, Bui Huu Chuc
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On the downlink throughput capacity of hybrid wireless networks with massive MIMO
In this paper, the entire network model is a hybrid wireless network model in which each base station is connected to each other via a wired link. On this basis, we place a large number of antennas (massive MIMO) at each base station to serve a single ...
Baoju Zhang, Yipeng Tian, Wei Wang
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Analysis of Wireless Power Transmission
The advent of various wireless technologies have revolutionized the communication infrastructure and consequently changed the entire world into a global village. Use of wireless technology has also been made for transmission of electric power wirelessly.
Anzar Mahmood +3 more
openaire +2 more sources
Nonuniform antenna array design by parallelizing three-parent crossover genetic algorithm
Antenna plays a very important role in wireless communication. Array elements laid out nonuniformly could achieve better frequency reliability and lower sidelobe level than uniform spaced elements.
Xin Zhang, Qinglian Zhang, Xiu Zhang
doaj +1 more source

