Results 91 to 100 of about 35,081 (210)

Effects of Doppler-Division Multiplexing on OFDM Joint Sensing and Communication Systems

open access: yesIEEE Open Journal of Signal Processing
A promising waveform candidate for future joint sensing and communication systems is orthogonal frequency-division multiplexing (OFDM). For such systems, supporting multiple transmit antennas requires multiplexing methods for the generation of orthogonal
Oliver Lang   +3 more
doaj   +1 more source

APR Reduction Technique based on OFDM Pilot Filter Bank Limiting for Satellite Mobile Communications

open access: yesMATEC Web of Conferences, 2018
Combined with OFDM (Orthogonal Frequency Division Multiplexing), satellite mobile communications will effectively achieve on-demand communication in areas with an ultra-low density of users.
Dai Tianfang
doaj   +1 more source

Design of MIMO-OFDM systems for indoor wireless transmissions [PDF]

open access: yes
This thesis is concerned with the use STC and SM techniques in MIMO orthogonal frequency division multiplexing (OFDM) wireless system over indoor frequency selective radio ...
Imbarlina, Giuseppe
core  

Chirp-based multicarrier modulation [PDF]

open access: yes, 2012
In this paper we demonstrate that in doubly-dispersive environments, a multicarrier (MC) system based on a fractional Fourier transform (FrFT) can achieve a better concentration of power near the main diagonal of the equivalent channel matrix compared to
Solyman, Ahmed   +2 more
core  

PAPR reduction using polynomial based compressing with Rapp model in GFDM

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy
Generalized Frequency Division Multiplexing (GFDM) has been considered as an attractive candidate to replace Orthogonal Frequency Division Multiplexing (OFDM) for the fifth generation (5 G) mobile networks. GFDM system has better spectral characteristics
P.V. Naganjaneyulu   +3 more
doaj   +1 more source

Extremely low frequency based communication link [PDF]

open access: yes, 2009
The paper discusses the literature review and the possibility of using the ground itself as transmission medium for various users’ transceivers and an administrator transceiver using Multi-Carrier-Direct Sequence-Code Division Multiple Access (MC-DS-CDMA)
Alaiwi, A   +3 more
core  

OFDM Signal Research with Varied Subcarriers Number

open access: yesTransport and Telecommunication, 2016
The orthogonal frequency division multiplexing (OFDM) aggregate signal energy characteristics are studied based on the OFDM signal simulation model. The information reliability of OFDM signal is explored for different sets of OFDM subcarrier numbers and ...
Uryvsky Leonid, Osypchuk Serhii
doaj   +1 more source

Software-Based Analysis of Multi User Orthogonal Frequency Division Multiplexing (OFDM)

open access: yesJurnal Jartel: Jurnal Jaringan Telekomunikasi, 2016
The application of OFDM technology is still not fully implemented in the Telecommunication Study Program at State Polytechnic of Malang. This is because the application of this technology is applied to hardware. However, this can be overcome by simulating the OFDM technology through software.
openaire   +2 more sources

The Effect and Compensation of Phase Noise on Orthogonal Frequency Division Multiplexing (OFDM) System

open access: yesCircuits and Systems, 2018
Orthogonal Frequency Division Multiplexing (OFDM) is characterized by its high data rate. However, the modulation method used in the system is subject to the influence of phase noise due to the need of time synchronization. In this paper, an algorithm based on MMSE (minimum mean square error) is developed to compensate the influence of both the common ...
openaire   +2 more sources

Orthogonal Frequency Division Diversity and Multiplexing for 6G OWC: Principle and Underwater Use Case

open access: yesPhotonics
In this paper, we, for the first time, propose and demonstrate an orthogonal frequency division diversity and multiplexing (OFDDM) scheme for the sixth-generation (6G) underwater optical wireless communication (UOWC) systems.
Jiamin Chen   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy