Results 11 to 20 of about 106,474 (328)
Superposition Coded-Orthogonal Frequency Division Multiplexing [PDF]
IEEE Access, 2018 Orthogonal frequency division multiplexing (OFDM) technique is the most used approach in various wireless communication technologies due to its implementation advantages.
Selahattin Gokceli, Gunes Karabulut Kurt
doaj +4 more sources
Undersampling in Orthogonal Frequency Division Multiplexing Telecommunication Systems [PDF]
Applied Sciences, 2014 Several techniques have been proposed that attempt to reconstruct a sparse signal from fewer samples than the ones required by the Nyquist theorem.
Nikos Petrellis
doaj +3 more sources
Enhanced Orthogonal Frequency-Division Multiplexing With Subcarrier Number Modulation [PDF]
IEEE Internet of Things Journal, 2019 A novel modulation scheme termed orthogonal frequency-division multiplexing with subcarrier number modulation (OFDM-SNM) has been proposed and regarded as one of the promising candidate modulation schemes for next generation networks.
Shuping Dang +3 more
semanticscholar +6 more sources
Orthogonal frequency division multiplexing [PDF]
, 2016 The contribution serves as a preview of the OFDM modulation signal, which is used in cellular and other wireless networks. We look closer on this problem and we are subsequently discussed general topics.
Marcaník, Miroslav +2 more
core +2 more sources
Modelling the satellite communication links with orthogonal frequency-division multiplexing
Transport, 2016 Global technologies of data transmission in real time are developing constantly. Therefore, modelling of messages transmission through satellite constellations is an actual problem.
Volodymir Kharchenko +3 more
doaj +5 more sources
Orthogonal frequency division multiplexing [PDF]
, 2013 Introduction OFDM, also known as simultaneous MFSK , has been widely implemented in high-speed digital communications in delay-dispersive environments. It is a multicarrier modulation (MCM) technique. OFDM was first proposed by Chang in 1966. Chang proposed the principle of transmitting messages simultaneously over multiple carriers in a linear band-
Eldad Perahia, Stacey Robert J
+10 more sources
Green optical orthogonal frequency-division multiplexing networks
IET Optoelectronics, 2014 Orthogonal frequency-division multiplexing (OFDM) has been proposed as an enabling technique for elastic optical networks to support heterogeneous traffic demands by enabling rate and modulation adaptive bandwidth allocation.
T. El-Gorashi +2 more
semanticscholar +3 more sources
Interleaved orthogonal frequency division multiplexing system [PDF]
IEEE International Conference on Acoustics Speech and Signal Processing, 2002 A new orthogonal frequency division multiplexing (OFDM) system for wireless communications over frequency selective fading channels is presented. The proposed interleaved orthogonal frequency division multiplexing (IOFDM) system promises higher code rate as compared to the conventional OFDM system without bandwidth expansion and with very slight ...
Prasad, VGS, Hari, KVS
openaire +5 more sources
Analysis of GFDM as a robust 5G communication technique in noisy environment [PDF]
, 2020 One of the challenges of modulation techniques used in Fifth-Generation (5G) is their robustness in noisy environment. Conventional Orthogonal Frequency Division Multiplexing (OFDM) cannot be considered as a 5G waveform in its original form because of ...
Ayaz, Ferheen, Ayaz, Saqib
core +1 more source
Spectrum-Efficient Triple-Layer Hybrid Optical OFDM for IM/DD-Based Optical Wireless Communications [PDF]
, 2020 In this paper, a triple-layer hybrid optical orthogonal frequency division multiplexing (THO-OFDM) for intensity modulation with direct detection (IM/DD) systems with a high spectral efficiency is proposed.
Ghassemlooy, Zabih +5 more
core +2 more sources