Results 61 to 70 of about 79,941 (235)
Experimental Study on Shortwave Communication and OTHR Integrated System Based on OFDM Waveform
Leida xuebao, 2012 Based on the recently developed active-passive multifunctional all-digital HF surface wave radar hardware platform of Wuhan University, an experiment study of integrated technology for shortwave communication and Over-The-Horizon Radar (OTHR) application
Shao Qi-hong +4 more
doaj +1 more source
PAR-Aware Large-Scale Multi-User MIMO-OFDM Downlink [PDF]
, 2012 We investigate an orthogonal frequency-division multiplexing (OFDM)-based downlink transmission scheme for large-scale multi-user (MU) multiple-input multiple-output (MIMO) wireless systems.
Larsson, Erik G., Studer, Christoph
core +1 more source
PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM
Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam +5 more
wiley +1 more source
Jurnal Otomasi Kontrol dan Instrumentasi, 2011 Abstrak Telah didesain sebuah alat universal audio scrambler menggunakan teknik OFDM yaitu suatu teknik modulasi yang menggunakan banyak frekuensi ( multicarrier ) yang saling tegak lurus ( orthogonal ). Teknik ini dilakukan dengan menggunakan transformasi Fourier balik ( Invers Fast Fourier Transform /IFFT) yang mengubah domain frekuensi ...
Maman Budiman +3 more
openaire +2 more sources
Pengaruh Frequency Selectivity Pada Orthogonal Frequency Division Multiplexing (OFDM) [PDF]
, 2013 Orthogonal Frequency Division Multiplexing (OFDM) adalah suatu nama khusus dari multicarrier, dimana suatu aliran data berkecepatan tinggi ditransmisikan melalui sejumlah subcarrier berkecepatan rendah.
Ali Mustofa, ST., MT, Fahima Ulfi Tazkia., Ir. Endah Budi P, MT
core
Distributions of Upper PAPR and Lower PAPR of OFDM Signals in Visible Light Communications
, 2014 Orthogonal frequency-division multiplexing (OFDM) in visible light communications (VLC) inherits the disadvantage of high peak-to-average power ratio (PAPR) from OFDM in radio frequency (RF) communications.
Baxley, Robert J. +2 more
core +1 more source
Circuit‐Theoretic Modeling and Simulation Study of Near‐Field MIMO Arrays of Dipole Antennas
Active and Passive Electronic Components, Volume 2026, Issue 1, 2026.Near‐field mutual coupling among closely spaced antennas limits the deployment of wireless MIMO interconnects in chip‐to‐chip communication. This paper presents a circuit‐theoretic modeling and simulation study of near‐field MIMO (NFMIMO) systems using 1 × 1 and 2 × 2 dipole arrays.
Abhishek Javali +3 more
wiley +1 more source
Insights Into Modulation and Coding Scheme in Mobile Communication
Discrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.With the growing demand for mobile communications and the advancement of technology, reducing energy consumption has become a critical challenge. Overservice, which leads to unnecessary energy waste, is attracting significant attention from both academia and industry. An optimized modulation and coding scheme (MCS) can reduce the energy consumption per
Jing Liu +4 more
wiley +1 more source
Non-Orthogonal Multicarrier Waveform for Radar With Communications Systems: 24 GHz GFDM RadCom
IEEE Access, 2019 In this paper, we propose the usage of Generalized Frequency Division Multiplexing (GFDM), a non-orthogonal multicarrier waveform for radar. We presented a novel method that cancels the effect of interference caused by the non-orthogonality of GFDM ...
Jessica B. Sanson +3 more
doaj +1 more source
Maximizing the Bandwidth Efficiency of the CMS Tracker Analog Optical Links
, 2005 The feasibility of achieving faster data transmission using advanced digital modulation techniques over the current CMS Tracker analog optical link is explored.
Axer, Markus +6 more
core +1 more source