Results 61 to 70 of about 392,150 (219)

Performance Analysis of Energy Detection over Mixture Gamma based Fading Channels with Diversity Reception

open access: yes, 2015
The present paper is devoted to the evaluation of energy detection based spectrum sensing over different multipath fading and shadowing conditions. This is realized by means of a unified and versatile approach that is based on the particularly flexible ...
Al-Qutayri, Mahmoud   +6 more
core   +1 more source

Performance Analysis for Multichannel Reception of OOFSK Signaling

open access: yes, 2007
In this paper, the error performance of on-off frequency shift keying (OOFSK) modulation over fading channels is analyzed when the receiver is equipped with multiple antennas. The analysis is conducted in two cases: the coherent scenario where the fading
Gursoy, Mustafa Cenk, Wang, Qingyun
core   +1 more source

Analisis Perencanaan Transmisi Microwave Link antara Semarang-Magelang untuk Radio Access Long Term Evolution (LTE)

open access: yesBuletin Pos dan Telekomunikasi: Media Komunikasi Ilmiah, 2019
Abstrak Teknologi telekomunikasi yang banyak dimanfaatkan untuk berkomunikasi di era internet saat ini adalah teknologi Long Term Evolution (LTE). Dalam menyelenggarakan layanan LTE, diperlukan suatu penghubung antara jaringan akses dengan core yang ...
Ignatius Daru Kristiadi   +1 more
doaj   +1 more source

Space-time QAM wireless MISO systems employing differentially coded in-/out-FECC SCQICs over slow-fading Jakes scattering mobile radio links

open access: yesThe Journal of Engineering, 2014
This study presents research that supplements and extends the previous works on design of space-time fully systematic unpunctured (FSU) serial concatenation of quadratic interleaved codes (SCQICs).
Ardavan Rahimian   +2 more
doaj   +1 more source

On the Downlink Throughput Capacity of Hybrid Wireless Networks With MIMO

open access: yesIEEE Access, 2017
In this paper, the downlink throughput capacity of hybrid wireless networks is mainly studied. Multiple-input multiple-output (MIMO) technology is assumed to be equipped on the base station and nodes to improve communication performance and increase the ...
Baoju Zhang   +3 more
doaj   +1 more source

Elucidation of the Effect of Solar Light on the Near-Infrared Excitation Raman Spectroscopy-Based Analysis of Fabric Dyes

open access: yesMolecules
Colored textiles are valuable physical evidence often found at crime scenes. Analysis of the chemical structure of textiles could be used to establish a connection between fabric found at a crime scene and suspect cloths.
Shannon Bober, Dmitry Kurouski
doaj   +1 more source

Design and Validation of Probes and Sensors for the Characterization of Magneto-Ionic Radio Wave Propagation on Near Vertical Incidence Skywave Paths

open access: yesSensors, 2019
This article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known ...
Ben A. Witvliet   +3 more
doaj   +1 more source

INVESTIGATION OF DOSIMETRIC PROPERTIES OF TABLE SUGAR IRRADIATED WITH GAMMA RAYS USING EPR TECHNIQUE

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi
In our study, it was observed that the EPR signals of table sugar irradiated with gamma rays at 3 kGy, 5 kGy, 10 kGy increased in proportion to the increasing dose.
Gül Bayramiye Özmen, Eren Şahiner
doaj   +1 more source

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