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The Evolution of Optical OFDM [PDF]

open access: yesIEEE Communications Surveys and Tutorials, 2021
Optical Orthogonal Frequency-Division Multiplexing (O-OFDM) is eminently suitable for mitigating the multi-path and chromatic dispersion in both Visible Light Communications (VLC) and Optical Fiber Communications. We commence our discourse by surveying the conception and historic evolution of O-OFDM designed for both VLC and optical fiber, culminating ...
Harald Haas   +2 more
exaly   +6 more sources

Finite Radon Transform as Subcarriers Mapping Technique for OFDM System

open access: yesJournal of Communications Software and Systems, 2022
Radon Transform (RT) becomes a mathematical basis for solving computerized tomography, and finds application in medical imaging and image processing. Finite groups represent digital images; the Finite Radon Transform (FRAT) is then applied.
Khalid G Samarah
doaj   +1 more source

A New Analytical Model for SIM–OFDM Contradicts the Previously Claimed Features

open access: yesJournal of Communications Software and Systems, 2022
The Subcarrier Index Modulation OFDM (SIM–OFDM) appeared in 2009 promising a –3 dB transmitted power reduction without affecting the system performance.
Ahmed N. Jabbar   +2 more
doaj   +1 more source

Adaptive Modulation for Orthogonal Frequency Division Multiplexing [PDF]

open access: yesEngineering 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.
Maher K. Mahmood, Abbas Salman Hameed
doaj   +1 more source

Design and Implementation of MC-CDMA Technique Using FPGA [PDF]

open access: yesEngineering and Technology Journal, 2013
Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA).
il A. H. Hadi, Layla Hattim Abood
doaj   +1 more source

Performance Analysis of Compressive Sensing based LS and MMSE Channel Estimation Algorithm

open access: yesJournal of Communications Software and Systems, 2021
In this paper, we have developed and implemented Minimum Mean Square Channel Estimation with Compressive Sensing (MMSE-CS) algorithm in MIMO-OFDM systems.
Ami Munshi, Srija Unnikrishnan
doaj   +1 more source

Reduction of sidelobe levels in multicarrier radar signals via the fusion of hill patterns and geometric progression

open access: yesETRI Journal, 2021
Multi‐carrier waveforms have several advantages over single‐carrier waveforms for radar communication. Employing multi‐carrier complementary phase‐coded (MCPC) waveforms in radar applications has recently attracted significant attention.
Channapatna Gopalkrishna Raghavendra   +2 more
doaj   +1 more source

Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection

open access: yesIEEE Photonics Journal, 2023
Compared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a better ...
Wei-Wen Hu
doaj   +1 more source

ESTIMATION OF POTENTIAL PARAMETERS FOR 5G MOBILE NETWORKS RADIOCHANNELS

open access: yesInformation and Telecommunication Sciences, 2023
Background. Deploying of 5G mobile networks opens up wide opportunities for the development of IoT, high-speed access to Internet services, industrial automation, telemedicine and other modern services.
Ігор Березовський   +1 more
doaj   +1 more source

IMPLEMENTING CHANNEL ESTIMATION AND MODULATION TECHNIQUES USING MIMO-PSK [PDF]

open access: yesProceedings on Engineering Sciences
Wireless communication must be designed with the inbuilt characteristics inclusive of high data rates, transmission efficiency, high quality of data transmission and multimedia transmission in communication framework.
K. R. Priya Dharshini , R. Kalaivani
doaj   +1 more source

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