Results 51 to 60 of about 102,128 (193)
Information, 2019 Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has
Somayeh Mohammady +3 more
doaj +1 more source
Analisis Inverse Pulse Position Modulation OFDM pada Komunikasi Ultra Wideband
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2022 Peningkatkan keandalan sistem multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) dengan memanfaatkan waktu bersama dan demodulasi domain frekuensi diharapkan dapat meningkatkan kinerja.
Lucky Nindya Palupi, Totok Winarno
doaj +1 more source
Performance Analysis of Framelet Based OFDM System Under Different Channel Conditions [PDF]
Engineering and Technology Journal, 2012 In this paper, the Framelet Transform (FT) is proposed as a new modulation technique in the realization of Orthogonal Frequency Division Multiplexing (OFDM).
Atheer A. Sabri, Ziad Q. Abdulkareem
doaj +1 more source
Performance Analysis and Enhancement of Multiband OFDM for UWB Communications
, 2006 In this paper, we analyze the frequency-hopping orthogonal frequency-division multiplexing (OFDM) system known as Multiband OFDM for high-rate wireless personal area networks (WPANs) based on ultra-wideband (UWB) transmission.
Lampe, L., Schober, R., Snow, C.
core +1 more source
Deep Learning-Aided OFDM Demodulation Scheme for Undersea RF Short-Range Communication [PDF]
RadioengineeringThe realization of undersea wireless communication using radio frequency (RF) signals is hindered by severe attenuation and signal distortion, particularly due to complex propagation mechanisms and limitations of RF hardware.
I. Pasya +2 more
doaj
Utilization of Compressed Sampling for PAPR Reduction in OFDM IEEE-802.11a System
Journal of Communications Software and Systems, 2021 Being spectrally efficient, easily implemented, and highly immune to selective channel imperfections and multipath fading, the Orthogonal Frequency Division Multiplexing (OFDM) can provide a sufficiently robust and high data rate modulation technique for
Hussein Al-Moukhles
doaj +1 more source
Quantization Effects in OFDM Systems [PDF]
, 2008 The advantage of using orthogonal frequency division multiplexing (OFDM) over the single-carrier modulation is its ability to mitigate interference and fading without complex equalization filters in the receiver.
Shao, X., Slump, C.H.
core +2 more sources
OFDM Signal Research with Varied Subcarriers Number
Transport and Telecommunication, 2016 The orthogonal frequency division multiplexing (OFDM) aggregate signal energy characteristics are studied based on the OFDM signal simulation model. The information reliability of OFDM signal is explored for different sets of OFDM subcarrier numbers and ...
Uryvsky Leonid, Osypchuk Serhii
doaj +1 more source
PERFORMANCE STUDY OF OFDM BASED ON IP-WT [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2008 In this paper, a proposed model based on In-Place Wavelet Transform (IP-WT) was suggested to improve the performance of the Orthogonal Frequency Division Multiplexing (OFDM) under the Additive White Gaussian Noise (AWGN), and flat fading channel.
Salih M. Salih
doaj +1 more source
Distributions of Upper PAPR and Lower PAPR of OFDM Signals in Visible Light Communications
, 2014 Orthogonal frequency-division multiplexing (OFDM) in visible light communications (VLC) inherits the disadvantage of high peak-to-average power ratio (PAPR) from OFDM in radio frequency (RF) communications.
Baxley, Robert J. +2 more
core +1 more source