Articles with "wireless communications" as a keyword



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A Polarization‐Modulated Information Metasurface for Encryption Wireless Communications

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Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202204333

Abstract: Programmable and information metasurfaces have shown great potentials in wireless communications, but there are few reports on encrypted communications. In this paper, a programmable polarization‐modulated (PoM) information metasurface is proposed, which can not only customize… read more here.

Keywords: information; wireless communications; information metasurface; polarization ... See more keywords
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Efficient modeling of low‐resolution millimeter‐wave transceivers for massive MIMO wireless communications systems

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32727

Abstract: We present a high‐fidelity measurement‐based nonlinear model of low‐complexity millimeter‐wave transmit and receive circuits for design and analysis of 1‐bit on‐off‐key (OOK) massive MIMO wireless communications systems. The receive model is based upon a fabricated… read more here.

Keywords: millimeter wave; wireless communications; mimo wireless; mimo ... See more keywords
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Dual‐band crescent‐shaped slot patch antenna for wireless communications and IoT applications

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Published in 2023 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.33708

Abstract: The investigation of two half circular patch (HCP) antenna with defected ground structure to operate dual bands is presented in this study for wireless communications. The crescent slots etched on the HCPs are proposed to… read more here.

Keywords: band; hcp antenna; antenna; wireless communications ... See more keywords
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An exact algorithm for a resource allocation problem in mobile wireless communications

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Published in 2017 at "Computational Optimization and Applications"

DOI: 10.1007/s10589-017-9914-9

Abstract: We consider a challenging resource allocation problem arising in mobile wireless communications. The goal is to allocate the available channels and power in a so-called OFDMA system, in order to maximise the transmission rate, subject… read more here.

Keywords: resource allocation; mobile wireless; wireless communications; allocation problem ... See more keywords
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A Dynamically Reconfigurable Dual-Waveform Baseband Modulator for Flexible Wireless Communications

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Published in 2020 at "Journal of Signal Processing Systems"

DOI: 10.1007/s11265-019-01472-7

Abstract: In future wireless communication systems, several radio access technologies will coexist and interwork to provide a great variety of services with different requirements. Thus, the design of flexible and reconfigurable hardware is a relevant topic… read more here.

Keywords: wireless communications; multi mode; wireless; dynamically reconfigurable ... See more keywords
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Broadcasting Multi-beams Antenna Subset Modulation for Secure Millimeter-Wave Wireless Communications

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-017-4681-6

Abstract: Due to the increasing demand for wireless communications, spectral efficiency of transmission schemes has gained a great concern recently. Also, achieving secure wireless communications is of high importance. Recently, physical layer security has been intensively… read more here.

Keywords: antenna subset; subset modulation; millimeter wave; wireless ... See more keywords
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Measurements at 2.4, 3.4, 5.2, 28 and 60 GHz for Device-to-Device Wireless Communications

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Published in 2019 at "Wireless Personal Communications"

DOI: 10.1007/s11277-019-06493-w

Abstract: Wireless communication networks with increased demand for higher speed in data transfer have paved way for device-to-device (D2D) wireless communications. This paper, investigates the radio link characteristics of D2D communication network in an indoor environment… read more here.

Keywords: wireless communications; communications measurements; measurements ghz; device device ... See more keywords
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Underwater Optical Wireless Communications, Networking, and Localization: A Survey

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Published in 2019 at "Ad Hoc Networks"

DOI: 10.1016/j.adhoc.2019.101935

Abstract: Abstract Underwater wireless communications can be carried out through acoustic, radio frequency (RF), and optical waves. Compared to its bandwidth limited acoustic and RF counterparts, underwater optical wireless communications (UOWCs) can support higher data rates… read more here.

Keywords: wireless communications; optical wireless; underwater optical; layer ... See more keywords
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System parameters effect on the turbulent underwater optical wireless communications link

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2019.163153

Abstract: Abstract In underwater optical wireless communications (UOWC) the link performance is greatly affected by the turbulence. Turbulence is due to the random variations of the refractive index of water, which leads to both intensity (i.e.,… read more here.

Keywords: wireless communications; turbulence; optical wireless; underwater optical ... See more keywords
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Sparse Channel Estimation for MIMO-FBMC/OQAM Wireless Communications in Smart City Applications

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2875245

Abstract: 5G is expected to be the wireless communications technology in future smart city applications. Filter bank multicarrier employing offset quadrature amplitude modulation (FBMC/OQAM) technology is considered as a candidate transmission scheme for 5G. However, because… read more here.

Keywords: fbmc oqam; mimo; city applications; channel estimation ... See more keywords
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UAV-Assisted RIS for Future Wireless Communications: A Survey on Optimization and Performance Analysis

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3149054

Abstract: Reconfigurable intelligent surfaces (RIS), a device made of low-cost meta-surfaces that can reflect or refract the signals in the desired manner, have the immense ability to enhance the data transmission from the sender to the… read more here.

Keywords: wireless communications; assisted ris; uav assisted; performance ... See more keywords