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Spectrally efficient optical orthogonal frequency division multiplexing. [PDF]
Philos Trans A Math Phys Eng Sci, 2020 This paper charts the development of spectrally efficient forms of optical orthogonal frequency division multiplexing (OFDM) that are suited for intensity-modulated direct detection systems, such as wireless optical communications. The journey begins with systems using a DC-bias to ensure that no parts of the signal that modulates the optical source ...
Lowery AJ.
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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. However, OFDM has also some significant drawbacks, such as the sensitivity against real-time impairments and the poor peakto-average power ratio (PAPR) performance.
Selahattin Gokceli, Gunes Karabulut Kurt
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Orthogonal Frequency Division Multiplexing: An Overview [PDF]
arXiv, 2007 7 Pages, 5 ...
Inderjeet, Kaur +2 more
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Orthogonal frequency division multiplexing with cascade index modulation [PDF]
IET Communications, 2021 AbstractAs an emerging technique, index modulation (IM) can improve the system bit error rate (BER) performance due to the robustness of index bits over conventional modulated symbol bits. The existing IM aided orthogonal frequency division multiplexing (OFDM) schemes only employ one index modulator at the transmitter, which transmits a small amount of
Zeng Hu +3 more
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Orthogonal Frequency-Division Multiplexed Quantum Key Distribution [PDF]
Journal of Lightwave Technology, 2015 We propose orthogonal frequency division multiplexing (OFDM), as a spectrally efficient multiplexing technique, for quantum key distribution (QKD) at the core of trustednode quantum networks. Two main schemes are proposed and analyzed in detail, considering system imperfections, specifically, time misalignment issues.
Bahrani, S, Razavi, M, Salehi, JA
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Adaptive Modulation for Orthogonal Frequency Division Multiplexing [PDF]
Engineering and Technology Journal, 2012 Orthogonal frequency division multiplexing (OFDM) is one of the promising technologies to improve the spectral efficiency, enhance system capacity and mitigate inter-symbol interference in the wireless communication system. Adaptive modulation (AM) with OFDM has been suggested as a bandwidth efficient transmission technique in wireless fading ...
Maher K. Mahmood, Abbas Salman Hameed
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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. In this paper, an undersampling technique is presented that allows the reconstruction of the sparse information that is transmitted through Orthogonal Frequency Division Multiplexing (OFDM) modulation.
Nikos Petrellis
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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
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MODELLING THE SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING
TRANSPORT, 2015 Global technologies of data transmission in real time are developing constantly. Therefore, modelling of messages transmission through satellite constellations is an actual problem. In this paper the original model of a communication channel ‘Vehicle-to-Satellite-to-Ground Station’ based on principles of the IEEE 802.11a standard is designed using ...
Kharchenko, Volodymir +3 more
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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
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