Results 31 to 40 of about 125,727 (149)

Analisis Unjuk Kerja Sistem Digital Video Broadcast (DVB)

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012
DVB (Digital Video Broadcasting) adalah salah satu sistem yang digunakan untuk mentransmisikan siaran TV/Video digital hingga sampai ke pengguna akhir (end-user).
Dedi Usman Effendy   +2 more
doaj   +1 more source

Çivril Bölgesinde Yetişen Üstün Özellikli Ünnap Ziziphus jujuba L. Genotiplerinin Seleksiyonu

open access: yesJournal of Agricultural Sciences, 2008
1999-2001 yılları arasında yapılan bu çalışmada Denizli‟nin Çivril ilçesinde doğal olarak yetişmekte olan üstün özellikli ünnap tiplerinin seleksiyonu amaçlanmıştır.
Filiz Hallaç Türk   +6 more
doaj   +1 more source

Group-indexed orthogonal frequency division multiplexing index modulation aided performance trade off

open access: yesETRI Journal, 2022
In this study, a novel group-indexed orthogonal frequency division multiplexing index modulation (OFDM-IM) scheme is proposed to achieve a tradeoff between spectral efficiency (SE) and bit-error-rate (BER) performance.
Thomas Wilfred Edison Athisaya Anushya   +2 more
doaj   +1 more source

A hybrid detection algorithm for 5G OTFS waveform for 64 and 256 QAM with Rayleigh and Rician channels

open access: yesOpen Engineering
Signal detection in orthogonal time frequency space modulation is one of the critical aspects for enhancing the throughput of the beyond fifth-generation framework, especially in challenging environments characterized by high mobility and multipath ...
Kumar Arun   +3 more
doaj   +1 more source

OFDM system energy efficiency increasing method based on peak-factor decrease

open access: yesФизика волновых процессов и радиотехнические системы, 2018
In this work the peak-factor decreasing method for the OFDM systems is proposed, based on the group spectrum subcarriers processing and the signal constellation rotation.
A.Kh. Sultanov   +2 more
doaj  

Nonlinearities Influence to RF Satellite Downlink Model with QAM and Raised Square Cosine Filter

open access: yesInternational Journal of Technology
Reliability of communications is of vital importance in military applications. Constellations are connecting coded words at different ends of the communication channel that indicate the correctness of the transmitted message. In this paper, we compare
Igor Vujovic   +3 more
doaj   +1 more source

Performance of LTE ADVANCED Uplink in a Flat Rayleigh Channel

open access: yesAdvances in Electrical and Electronic Engineering, 2013
This paper describes the performance of LTE advanced uplink transmission in a flat Rayleigh channel. The uplink is simulated using a modified version of the Vienna uplink link level matlab code simulator.
Edward Kasem   +2 more
doaj   +1 more source

Soil temperature and horticultural traits as influenced by mulching materials and orchard floor management practices in ber (Zizypus mauritiana Lamk.)

open access: yesJournal of Agrometeorology, 2020
Different type of mulches viz. paddy straw mulch (PSM), black polythene mulch (BPM), and white polythene mulch (WPM) were spreaded under the canopies of Indian ber (Zizypus mauritiana Lamk.) trees in second fortnight of October.
J.S. BRAR   +3 more
doaj   +1 more source

HUMIDITY EFFECT TO 5G PERFORMANCES UNDER PALEMBANG CHANNEL MODEL AT 28 GHZ

open access: yesJurnal Ilmiah SINERGI, 2020
The telecommunication has a tremendous improvement in terms of data rates and bandwidth requiring sufficient frequency allocation and wideband spectrum availability. The millimeter-wave frequency band is one of the solution to these requirements, however
Bengawan Alfaresi   +4 more
doaj   +1 more source

PAPR Reduction and Data Security Improvement for OFDM Technique Using Chaos System

open access: yesJournal of Communications Software and Systems, 2019
Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier technique because it produces several advantages such as higher spectral efficiency, high transmission rate, robustness to fading channel and etc..
Muntadher Kadhim Abdullah   +1 more
doaj  

Home - About - Disclaimer - Privacy