Results 51 to 60 of about 550 (173)

CDMA Transmission with Complex OFDM/OQAM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Chrislin Lélé   +3 more
doaj   +1 more source

A Study on Wireless Waveform Modification Architectures Most Applicable for Seamless Data Transmission in 5G NR Frequencies

open access: yesABUAD Journal of Engineering Research and Development
Several studies have been conducted on the successive modification of the wireless network waveform resources for advanced purposes. This is to adapt to the evolving needs of wireless resources in areas such as growing data rates, effective bandwidth ...
Zakka Augustine   +5 more
doaj   +1 more source

Filter Bank Multicarrier Communication With Real Part and Imaginary Part Index Modulation

open access: yesIEEE Open Journal of the Communications Society
This paper presents a novel variant of filter bank multicarrier (FBMC) communication, which carries additional bits through mapping the real and imaginary parts of the symbol to the active time-frequency (TF) points, called FBMC with real part and ...
Yunan Zhu   +4 more
doaj   +1 more source

Multicarrier Downlink Transmission for High-speed Railway in Non-Gaussian Noise Channels

open access: yesIEEE Access, 2018
We consider a wireless wideband downlink transmission for high-speed railway. In this scenario, the wireless channel is double selective, i.e., multipath and highly time-varying, and involves non-Gaussian noise at the receiver side. Conventional receiver
Qiwei Zheng   +3 more
doaj   +1 more source

Subcarrier Gain Based Power Allocation in Multicarrier Systems

open access: yesJournal of Telecommunications and Information Technology, 2014
The Orthogonal Frequency Division Multiplexing (OFDM) transmission is the optimum version of the multicarrier transmission scheme, which has the capability to achieve high data rate.
Mohammed Abd-Elnaby   +4 more
doaj   +1 more source

Multicarrier Approaches for High-Baudrate Optical-Fiber Transmission Systems With a Single Coherent Receiver

open access: yesIEEE Photonics Journal, 2017
In this paper, we show the remarkable timing error (TE) and residual chromatic dispersion (CD) tolerance improvements of the filter bank multicarrier (FBMC) over orthogonal frequency division multiplexing (OFDM) for high-baudrate spectral slicing ...
Tu T. Nguyen   +5 more
doaj   +1 more source

A Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission

open access: yesEURASIP Journal on Wireless Communications and Networking, 2006
The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission.
Efthymoglou George, Gerakoulis Diakoumis
doaj  

A peak power reduction method for multicarrier transmission

open access: yesICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2001
A method to reduce the peak-to-average power ratio (PAR) of multicarrier signals has been developed. The method enlarges the quadrature amplitude modulation (QAM) constellation size at tones so that several signal points represent the same information. It chooses a signal point among equivalent signal points that minimises PAR. The method achieved more
openaire   +1 more source

Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission

open access: yesEURASIP Journal on Wireless Communications and Networking, 2006
The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission.
doaj  

Software Implementation and Cyclic Feature Characterization of Nu-FBMC/OQAM Signals

open access: yesIEEE Access
An extended frequency spread (FS) multicarrier system based on the filter bank and offset quadrature amplitude modulation (FS-FBMC/OQAM) approach applied to a critically sampled nonuniform FBMC/OQAM (Nu-FBMC/OQAM) transmission, using subchannel ...
Marija Punt, Desimir Vucic
doaj   +1 more source

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