Results 11 to 20 of about 5,826 (226)

Superposition Coded-Orthogonal Frequency Division Multiplexing [PDF]

open access: yesIEEE 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   +3 more sources

Orthogonal frequency division multiplexing with cascade index modulation [PDF]

open access: yesIET Communications, 2022
As 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.
Zeng Hu   +3 more
doaj   +2 more sources

Folded orthogonal frequency division multiplexing

open access: yesOptics Express, 2016
We propose and demonstrate a new sub-carrier multiplexing scheme, utilizing orthogonal, periodic-sinc-shaped sub-carrier spectra. This 'folded' OFDM allows for multi-carrier bands to be generated with the precise, rectangular frequency definition of Nyquist WDM.
Arthur Lowery   +2 more
exaly   +3 more sources

Conditional generative adversarial network technology for OFDM system receiver signal detection. [PDF]

open access: yesPLoS ONE
In response to the limited detection accuracy of traditional orthogonal frequency division multiplexing systems in complex wireless channel environments, this study first uses conditional generative adversarial networks to construct a single input/output
Yang Liu, Peng Liu, Yu Shi, Xue Hao
doaj   +2 more sources

Spectrally efficient optical orthogonal frequency division multiplexing [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2020
Arthur Lowery
exaly   +2 more sources

A Survey on Physical Layer Techniques and Challenges in Underwater Communication Systems

open access: yesJournal of Marine Science and Engineering, 2023
In the past decades, researchers/scientists have paid attention to the physical layer of underwater communications (UWCs) due to a variety of scientific, military, and civil tasks completed beneath water.
Naveed Ur Rehman Junejo   +6 more
doaj   +1 more source

Index modulation for OFDM RadCom systems

open access: yesThe Journal of Engineering, 2021
This paper studies a novel Radar and wireless communication fusion system namely, RadCom, using orthogonal frequency division multiplexing index modulation waveforms.
Gaojian Huang   +3 more
doaj   +1 more source

Chaotic-based Orthogonal Frequency Division Multiplexing with Index Modulation

open access: yesJournal of Telecommunications and Information Technology, 2022
Orthogonal frequency division multiplexing with index modulation (OFDM-IM), stands out among conventional communication technologies, as it uses the indices of the available transmit entities. Thanks to such an approach, it offers a novel method for the
Sura H. Hussien, Hamsa A. Abdullah
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

Interleaved orthogonal frequency division multiplexing system [PDF]

open access: yesIEEE 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   +2 more sources

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