Results 21 to 30 of about 57,490 (299)
Design of planar four-antenna system for single soldier handheld terminal
Dianzi Jishu Yingyong, 2021 The planar integration design of the antenna system for soldier terminals is presented in this paper based on the requirements of the miniaturization and high integration. A four-antenna system including recieving and transmitting Ad-Hoc network antennas,
Zhou Wenhui
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Sensors, 2023 This paper assessed the variability of radiofrequency exposure among road users in urban settings due to vehicle-to-vehicle (V2V) communication operating at 5.9 GHz.
Gabriella Tognola +4 more
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Utility-Based Wireless Routing Algorithm for Massive MIMO Heterogeneous Networks
Applied Sciences, 2020 With the development of 5G communication, massive multiple input multiple output (MIMO) technology is getting more and more attention. Massive MIMO uses a large amount of simultaneous transmitting and receiving antennas to reduce power consumption and ...
Wei Zhao, Wen-Hsing Kuo
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IEEE Access, 2023 Indoor object localization and positioning is part of the space-awareness concept which has seen a rising popularity in recent Internet of Things (IoT) research and applications.
Amina Benouakta +3 more
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Applied Sciences, 2019 This paper presents a practical method of receiving waves having orbital angular momentum (OAM) in the far field of an antenna transmitting multiple OAM modes, each carrying a separate data stream at the same radio frequency (RF).
Marek Klemes
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On the Maximal Diversity Order of Spatial Multiplexing with Transmit Antenna Selection
, 2007 Zhang et. al. recently derived upper and lower bounds on the achievable diversity of an N_R x N_T i.i.d. Rayleigh fading multiple antenna system using transmit antenna selection, spatial multiplexing and a linear receiver structure. For the case of L = 2
Jalden, J., Ottersten, B.
core +3 more sources
Receiving and transmitting feed of reflector antennas for satellite communication systems
Физика волновых процессов и радиотехнические системы, 2022 The performance indicators of the antenna-feed path of a multiband reflector antenna are formulated and analyzed in the form of partial coefficients of the complex amplitude of the input signal, vectors of the polarization signal and noise in the input ...
Dmitry D. Gabriel’ean +3 more
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Oversampling transmit and receive antenna arrays [PDF]
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010 A dense antenna array architecture is developed to ease the circuit requirements of the radio frequency (RF) front-end in beamforming applications. In the architecture, antennas are spaced more closely than would otherwise be required to exploit the available degrees of freedom.
Wornell, Gregory W. +2 more
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A Method for Performance Enhancement for Aeronautical Telemetry Radio Link Using Alamouti Code [PDF]
فصلنامه علوم و فناوری فضایی, 2011 In the most aeronautical telemetry systems, at least two antennas are used to transmit radio signals towards receiver antenna. It is due to effect of large metallic fuselage of air vehicles in cutoff radio link between transmitter and receiver antenna ...
Sh. Marzban, K. Mohamed-Pour
doaj
Optimized Scheme of Antenna Diversity for Radio Wave Coverage in Tunnel Environment
IEEE Access, 2020 To suppress the deep fading of radio waves caused by the tunnel waveguide effect, this paper presents an optimized scheme for the spatial and polarization diversities of tunnel antennas.
Zhenyu Zhao +4 more
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