Results 11 to 20 of about 6,497,670 (250)
Channel estimation and transmit power control in wireless body area networks [PDF]
, 2014 Wireless body area networks have recently received much attention because of their application to assisted living and remote patient monitoring. For these applications, energy minimisation is a critical issue since, in many cases, batteries cannot be ...
Glover, Ian A. +10 more
core +1 more source
Antenna array design by a contraction adaptive particle swarm optimization algorithm
EURASIP Journal on Wireless Communications and Networking, 2019 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
doaj +1 more source
Recent developments in indoor optical wireless systems [PDF]
, 2008 An overview of the developments in optical wireless systems viewed from the traditional communications viewpoint of transmitter, channel and receiver is presented.
Leeson, Mark S. +3 more
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MIMO MC-CDMA Systems over indoor optical wireless communication channels [PDF]
, 2011 Optical wireless communication systems offer a number of advantages over their radio frequency counterparts. The advantages include freedom from fading, freedom from spectrum regulations and abundant bandwidth.
Alsaadi, Fuad Eid S
core +6 more sources
A wireless power transfer system for electrical vehicles exploiting magnetically coupled resonance and a tapped capacitance impedance transformer [PDF]
, 2014 The input impedance of a wireless power transfer system is heavily influenced by variation of the load impedance, distance between coils and presence of any massive conducting or shielding structures that may exist around the system.
Mihai D. Rotaru +5 more
core +2 more sources
EURASIP Journal on Wireless Communications and Networking, 2017 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
doaj +1 more source
Energy Reports, 2022 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
doaj +1 more source
Energy pattern aided simultaneous wireless information and power transfer [PDF]
, 2015 In echoing Varshney's seminal concept of jointly transmitting information and energy, we propose the concept of an energy pattern aided Simultaneous Wireless Information and Power Transfer (SWIPT) system, where in addition to power transfer, information ...
Yang, Lie-Liang +2 more
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Investigation of a novel structure for 6PolSK-QPSK modulation
EURASIP Journal on Wireless Communications and Networking, 2017 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
doaj +1 more source
2 x 80 Gbit/s DWDM Bidirectional Wavelength Reuse Optical Wireless Transmission [PDF]
, 2013 We demonstrate a practical 2×80 Gbit/s dense wavelength division multiplexing (DWDM) bidirectional short-range optical wireless link. The measured power penalties for the bidirectional transmission are less than 0.8 and 0.2 dB compared to the back-to ...
Ghassemlooy, Zabih +5 more
core +1 more source