Results 21 to 30 of about 3,552 (166)

An efficient SLM technique based on chaotic biogeography-based optimization algorithm for PAPR reduction in GFDM waveform

open access: yesAutomatika, 2023
High data rates, extremely low power consumption, and minimal end-to-end latency are considered to be mandatory requirements for 5G wireless networks. Rapid improvements in design and performance of 5G physical layer waveforms have become necessary.
S. Selvin Pradeep Kumar   +2 more
doaj   +1 more source

Comparing the Performance of OFDM and OCDM-based Visible Light Communications: Numerical and Experimental Analysis [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023
Numerical and experimental analysis of visible light communication (VLC) systems based on orthogonal chirp division multiplexing (OCDM) and orthogonal frequency division multiplexing (OFDM) are presented in this paper.
Augusto C. F. Peterle   +5 more
doaj   +1 more source

Characterization of Orthogonal Frequency Division Multiplexing (OFDM) Communication Links

open access: yesAmerican Journal of Electrical and Electronic Engineering, 2020
The demand for high data rate transmission is rapidly increasing in the area of wireless communications and Orthogonal Frequency Division Multiplexing (OFDM) is known to be a promising technique for high-rate transmission that can overcome the inter symbol interference (ISI) which results from the time dispersive nature of wireless channels.
Rahmon Kamorudeen Adewale   +2 more
openaire   +1 more source

Multiband Real-Time Coherent Optical OFDM Reception up to 110 Gb/s with 600-km Transmission

open access: yesIEEE Photonics Journal, 2010
We demonstrate field-programmable gate array (FPGA)-based multiband orthogonal frequency-division multiplexing (OFDM) signal reception after 600-km standard single-mode fiber (SSMF) transmission and 400-ps differential-group delay (DGD) at 110-Gb/s.
Simin Chen, Yiran Ma, William Shieh
doaj   +1 more source

Performance Analysis of Orthogonal Multiplexing Techniques for PLC Systems with Low Cyclic Prefix Length and Symbol Timing Offset

open access: yesSensors, 2023
This paper investigates the degradation caused by interference resulting from cyclic prefix violation and symbol timing offset in narrowband power line communication systems. In this sense, it presents a unified formulation from which Hermitian symmetric
Túlio Fernandes Moreira   +3 more
doaj   +1 more source

Universal Filtered Multicarrier (UFMC) vs. Orthogonal Frequency Division Multiplexing (OFDM)

open access: yesJournal of Physics: Conference Series, 2020
Abstract Wireless systems can be utilized in various areas. These wireless systems require a flexible mechanism for the allocation of the available time and frequency resources. The framework time-recurrence designation is very troublesome in the regular OFDM frameworks. The multicarrier procedure has been a dumbfounding technique in the
Saadaldeen Rashid Ahmed   +2 more
openaire   +1 more source

Super-Orthogonal Block Codes with Multichannel Equalisation and OFDM in Frequency Selective Fading

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
Super-orthogonal block codes in space-time domain (i.e., Super-orthogonal space-time trellis codes (SOSTTCs)) were initially designed for frequency nonselective (FNS) channels but in frequency selective (FS) channels these super-orthogonal block codes ...
O. Sokoya, B. T. Maharaj
doaj   +2 more sources

Design and Performance Analysis of Hybrid Multidimensional OAM-DM-WDM-OFDM-PON System with High-Capacity and Long-Distance Transmission

open access: yesPhotonics, 2022
Orbital angular momentum (OAM) with mutually orthogonal advantage attribute to break through the high capacity and long-reach transmission limited in the classical passive optical network (PON). Employing Laguerre Gaussian (LG) mode as the orthogonal OAM
Qingan Ding   +8 more
doaj   +1 more source

Fast Convolution Filter-Bank Based Non-Orthogonal Multiplexed Cognitive Radio (NOMCR) Receiver Design Using Cyclostationarity Based FRESH Filtering

open access: yesSensors, 2018
Non-orthogonal multiple access (NOMA) systems are being considered as candidates for 5G wireless systems due to their promise of improved spectral efficiency.
Jayanta Datta, Hsin-Piao Lin
doaj   +1 more source

OFDM transmission scheme with subcarrier supply index modulation

open access: yesTongxin xuebao, 2023
To address the drawback that subcarrier activation pattern (SAP) of the orthogonal frequency division multiplexing with index modulation (OFDM-IM) cannot match the binary numbers which affects the system performance, the orthogonal frequency division ...
Yi GUO   +3 more
doaj   +2 more sources

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