Results 71 to 80 of about 49,826 (236)

Reverse polarity optical-OFDM (RPO-OFDM): dimming compatible OFDM for gigabit VLC links

Optics Express, 2013
Visible light communications (VLC) technology permits the exploitation of light-emitting diode (LED) luminaries for simultaneous illumination and broadband wireless communication. Optical orthogonal frequency-division multiplexing (O-OFDM) is a promising modulation technique for VLC systems, in which the real-valued O-OFDM baseband signal is used to ...
Hany, Elgala, Thomas D C, Little
openaire   +2 more sources

Multiuser MIMO-OFDM Systems using Subcarrier Hopping

, 2006
Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques have attracted substantial research interest, which is ...
Jiang, M, Hanzo, L
core  

Spatio‐Temporal cGAN Based Channel Estimation for Low‐Altitude Integrated Sensing and Communication Systems

Electronics Letters, Volume 62, Issue 1, January/December 2026.
Reliable channel estimation in low‐altitude ISAC is challenged by UAV‐induced fast‐varying and non‐stationary channels. We present an ST‐cGAN framework that jointly models spatial and temporal features under conditional adversarial learning, achieving superior accuracy and robustness compared with conventional and deep learning baselines.
Guixin Pan, Honghui Xu, Yixuan Wang, Kang Kang, Wenbin Li, Tianyi Liu   +5 more
wiley   +1 more source

Ambiguity Function Optimization Based on Joint Communication and Sensing Waveform

Electronics Letters, Volume 62, Issue 1, January/December 2026.
The sidelobe suppression strategy proposed in this study demonstrates significant advantages. Its ability to effectively reduce ambiguity function sidelobes has important practical significance for engineering. ABSTRACT The ambiguity function (AF) plays a critical role in joint communication and sensing (JCAS) systems. In this letter, we design a novel
Zheming Guo, Baixiao Chen
wiley   +1 more source

An Overview of Indoor OFDM/DMT Optical Wireless Communication Systems

, 2010
This paper is an overview of indoor OFDM (orthogonal frequency division multiplexing)/DMT (discrete multitone) optical wireless (OW) communication systems. Indoor OW OFDM/DMT systems can be classified into two groups.
Elgala, Hany, Mesleh, Raed, Mehmood, Rashid, Haas, Harald   +3 more
core  

Direct and external intensity modulation in OFDM RoF links [PDF]

, 2014
This article is available Open Access to view at: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7158985Radio-over-fiber (RoF) systems comprise light modulation and transmission of millimeter-wave signals over fiber links.
Cosmas, John P., Glover, Ian A., Lazaridis, Pavlos I., Zaharias D. Zaharis, Lazaridis, PI, Prasad, NR, Ian A. Glover, Khwandah, Sinan, Khwandah, SA, Zaharis, ZD, Zaharis, Zaharias D., Cosmas, JP, Glover, Ian, Prasad, Neeli R., John P. Cosmas, Cosmas, John, Glover, IA, Lazaridis, Pavlos, Sinan A. Khwandah, Neeli R. Prasad, Pavlos I. Lazaridis, Prasad, Neeli, Khwandah, Sinan A.   +22 more
core   +1 more source

Modification of Synthetic Filtered Output for PSL Reduction in DFT‐Spread OFDM MIMO Radar Using Doppler‐Tolerant Extended Space‐Time Coding

Electronics Letters, Volume 62, Issue 1, January/December 2026.
We propose a Doppler‐tolerant DFT‐spread orthogonal time‐coded OFDM (DSS‐OTC‐OFDM) waveform for MIMO radar that maintains orthogonality under Doppler shifts while enabling flexible code design. An optimisation framework is developed to minimise peak sidelobe level (PSL) and suppress cross‐correlation after matched filtering across a range of Doppler ...
Ata Nokhostin Roohi, Hossein Soleimani, Mohammad Soleimani   +2 more
wiley   +1 more source

PAPR Reduction using Genetic Algorithm in OFDM System

Applications of Modelling and Simulation, 2018
Orthogonal frequency division multiplexing (OFDM) is a multicarrier modulation technique that relies on orthogonality feature to increase transmission data rate while enhancing spectral efficiency at the same time. OFDM’s major issue is the high peaks or
Aeizaal Azman A. Wahab, Hazmarini Husin, W. A. F. W. Othman, S. S. N. Alhady, Fatin Najwa Nursyadza   +4 more
doaj  

Subband-adaptive turbo-coded OFDM-based interactive video telephony

, 2002
A range of adaptive orthogonal frequency division multiplex (AOFDM) video systems are proposed for interactive communications over wireless channels. The proposed constant target bit-rate subband adaptive OFDM modems can provide a lower bit error rate ...
Cherriman, P.J., Keller, T., Hanzo, L.
core   +1 more source

Power Line Communication as a Sensor: Medium Voltage Cable Diagnostics

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This article investigates the use of broadband power line (BPL) communication as a diagnostic tool for medium‐voltage cables. Experimental results show that BPL modem parameters change in the presence of partial discharges, enabling real‐time monitoring of insulation health and supporting predictive maintenance.
Lukas Benesl, Petr Mlynek, Michal Krbal, Martin Rusz, Petr Musil, Jiri Misurec, Jan Slacik   +6 more
wiley   +1 more source