Results 31 to 40 of about 125,727 (149)
Analisis Unjuk Kerja Sistem Digital Video Broadcast (DVB)
Jurnal 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
Journal 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
ETRI 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
Open EngineeringSignal 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
Физика 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
International Journal of TechnologyReliability 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
Advances 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
Journal 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
Jurnal 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
Journal 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