Results 31 to 40 of about 1,449,714 (389)
Power Efficient Resource Allocation for Full-Duplex Radio Distributed Antenna Networks [PDF]
IEEE Transactions on Wireless Communications, 2015 In this paper, we study the resource allocation algorithm design for distributed antenna multiuser networks with full-duplex (FD) radio base stations (BSs), which enable simultaneous uplink and downlink communications.
Derrick Wing Kwan Ng +2 more
semanticscholar +1 more source
Impact of Ship Motions on Maritime Radio Links
International Journal of Antennas and Propagation, 2012 The improvement of maritime radio links often requires an increase of emitted power or receiver sensitivity. Another way is to replace the poor antenna gains of traditional surface ship whips by novel antenna structures with directive properties. However,
William Hubert +3 more
doaj +1 more source
Antena Mikrostrip Array 8x2 Elemen untuk Aplikasi Radio Gelombang Mikro
Jurnal Elkomika, 2021 ABSTRAK Peningkatan gain pada antena mikrostrip polarisasi melingkar menggunakan metode array 8x2 element diusulkan dalam penelitian ini. Antena yang diusulkan dirancang untuk bekerja pada rentang frekuensi 10700 – 11700 MHz untuk sistem komunikasi ...
SYAH ALAM +3 more
doaj +1 more source
Energy efficiency of transmit diversity systems under a realistic power consumption model [PDF]
, 2013 We compare the downlink energy efficiency of spatial diversity multiple transmit antenna schemes. We determine the minimum required transmit power for a given outage probability.
Brante, G. +3 more
core +1 more source
ON THE “TREE” VERTICAL ELECTRIC ELF ANTENNA [PDF]
Радиофизика и электроника, 2016 Development of new antennas for reception of radio signals was and remains an actual problem. We model and estimate the efficiency of unusual design of the vertical electric antenna detecting ELF (3…3 000 Hz) radio signals.
E. A. Velichko, A. P. Nickolaenko
doaj +1 more source
Radio Direction Finding in Air Traffic Services
Promet (Zagreb), 2005 The paper analyses the Radio Direction Finding principlefor navigation and swveillance system. Radio Direction Findinginvolves locating the bearing of a transmitter called a radiobeacon.
Andrej Novak
doaj +1 more source
Switchable filtering in vivaldi antenna [PDF]
, 2010 Presented is a new frequency switchable Vivaldi antenna that has a capability to operate in a wideband mode (1-3 GHz) and reconfigure to six different subbands of operations.
Gardner, P. +3 more
core +1 more source
Hybrid Digital and Analog Beamforming Design for Large-Scale Antenna Arrays [PDF]
IEEE Journal on Selected Topics in Signal Processing, 2016 The potential of using of millimeter wave (mmWave) frequency for future wireless cellular communication systems has motivated the study of large-scale antenna arrays for achieving highly directional beamforming.
Foad Sohrabi, Wei Yu
semanticscholar +1 more source
Effect of Parasitic Element on 408 MHz Antenna for Radio Astronomy Application
International Journal of Antennas and Propagation, 2014 Antenna is one of the important subsystem components in a radio telescope system. In this paper, analysis on the effect of parasitic element on 408 MHz antenna in a radio telescope system is presented.
Radial Anwar +5 more
doaj +1 more source
Flickering of a radio-signal due to an atmospheric turbulence
Физика волновых процессов и радиотехнические системы, 2023 Background. Turbulent fluctuations of the refractive index in the atmosphere lead to distortions during the passage of the radio signal. This can lead to distortion of the transmitted information due to the resulting fluctuations of the amplitude, phase ...
Dmitriy S. Klyuev +5 more
doaj +1 more source