Results 61 to 70 of about 1,895 (182)
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 +2 more
wiley +1 more source
On PAPR Reduction in Pilot-Assisted Optical OFDM Communication Systems
IEEE Access, 2017 This paper presents a novel theoretical characterization of the pilot-assisted (PA) technique proposed for peak-to-average-power-ratio (PAPR) reduction in optical orthogonal frequency division multiplexing (O-OFDM).
Funmilayo B. Offiong +2 more
doaj +1 more source
A new PAPR reduction in OFDM systems using PTS combined with APPR for TWTA nonlinear HPA [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2008 In this paper, we propose a new Peak-to-Average Power Ratio (PAPR) reduction technique using a partial transmit sequence (PTS) combined with adaptive peak power reduction (APPR) methods.
Chusit Pradabpet, Kobchai Dejhan
doaj
Performance Analysis of Layered ACO-OFDM
IEEE Access, 2017 Layered asymmetrically clipped optical orthogonal frequency division multiplexing (LACO-OFDM) has been proposed for improving the spectral efficiency of conventional asymmetrically clipped optical OFDM.
Xiaoyu Zhang +4 more
doaj +1 more source
A Novel PAPR in OTFS Systems Through ISSA-PTS and ISPR Techniques
IEEE AccessIn modern communication systems, managing the Peak-to-Average Power Ratio (PAPR) remains a critical challenge, particularly in Orthogonal Time-Frequency Space (OTFS) systems.
Gerges Mansour Salama +3 more
doaj +1 more source
A New Approach to Iterative Clipping and Filtering PAPR Reduction Scheme for OFDM Systems
IEEE Access, 2018 While achieving reduced/good peak-to-average power (PAPR) in orthogonal frequency division multiplexing (OFDM) systems is attractive, this must not be performed at the expense of the transmitted signal with over-reduced signal power, as it leads to ...
Kelvin Anoh +3 more
doaj +1 more source
An adaptive tone injection for OFDM PAPR reduction
IEICE Electronics Express, 2011 We propose an ATI (Adaptive Tone Injection) scheme based on clipping noises for PAPR (Peak-to-Average Power Ratio) reduction of OFDM (Orthogonal Frequency Division Multiplexing) signals. The proposed scheme is composed of three steps: clipping, tone selection, and TI procedures.
Yang, Mochan, Shin, Yoan
openaire +2 more sources
Space-Time Coded OFDM with Low PAPR
EURASIP Journal on Advances in Signal Processing, 2006 Recently the use of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems has been proposed for signaling over frequency-selective fading channels.
Venkataraman Anand +2 more
doaj +1 more source
International Journal of Antennas and Propagation, 2016 Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier technique used to attain high spectral efficiencies. It also has other advantages such as multipath tolerance and ease of implementation.
Hidekazu Shimodaira +2 more
doaj +1 more source
PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform. [PDF]
Heliyon, 2023 Kumar A +5 more
europepmc +1 more source