Results 1 to 10 of about 12,182 (187)
A Hybrid PAPR Reduction Scheme in OFDM-IM Using Phase Rotation Factors and Dither Signals on Partial Sub-Carriers [PDF]
Entropy, 2022 As a multi-carrier modulation technique, a high peak-to-average power ratio (PAPR) is a common issue suffered by orthogonal frequency division multiplexing with index modulation (OFDM-IM) due to its system structure. High PAPR may cause signal distortion,
Si-Yu Zhang, Hui Zheng
doaj +2 more sources
Frequency-Selective PAPR Reduction for OFDM [PDF]
IEEE Transactions on Vehicular Technology, 2019 We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole active ...
Gökceli, Selahattin +4 more
core +7 more sources
PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform. [PDF]
Heliyon, 2023 In this article, we focus on optimising the SLM-PTS-CT (selective mapping, partial transmission sequence, circular transformation) hybrid method for optical non-orthogonal multiple access (O-NOMA) waveforms. The goal is to enhance the spectrum performance and practicality of O-NOMA systems while mitigating the PAPR issue through a hybrid approach.
Kumar A +5 more
europepmc +4 more sources
On PAPR Reduction in Pilot-Assisted Optical OFDM Communication Systems [PDF]
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 +4 more sources
CLIPPING TECHNIQUES FOR PAPR REDUCTION IN FBMC/OQAM SYSTEM OVER DOUBLY-SELECTIVE CHANNELS
Journal of Engineering and Sustainable Development, 2021 One of the major disadvantages of Filter Bank Multicarrier (FBMC) is high Peak-to-Average Power Ratio (PAPR) of transmitted signal. As a result, nonlinear power amplifier (PA) properties, considerable out-of-band and the in-band distortion types take ...
Noor Q. Lateef, Fadhil S. Hasan
doaj +3 more sources
PAPR Reduction With Mixed-Numerology OFDM [PDF]
IEEE Wireless Communications Letters, 2020 Accepted for publication as a Letter in the IEEE Wireless Communications Letters in September 2019.
Selahattin Gokceli +5 more
openaire +3 more sources
Sensors, 2021 Several high-speed wireless systems use Orthogonal Frequency Division Multiplexing (OFDM) due to its advantages. 5G has adopted OFDM and is expected to be considered beyond 5G (B5G).
Mohamed Mounir +4 more
doaj +1 more source
Exploiting OTFS Frame Structure for PAPR Reduction
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022 Wireless technologies have always been the cornerstone of industrial progress. However, as industrial technologies have improved and advanced services have emerged, the demands of industry have meant that wireless technologies have had to adapt.
Sumer, Ahmet Sacid +3 more
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Precoding for PAPR Reduction in UW-OFDM [PDF]
IEEE Communications Letters, 2021 Unique Word Orthogonal Frequency Division multiplexing (UW-OFDM) is a variant of the multicarrier technique that has shown better bit error performance compared to cyclic prefixed (CP-)OFDM. Like other multicarrier techniques, UW-OFDM suffers from the high peak-to-average-power ratio (PAPR) problem, which is an obstacle ahead of practical ...
Morteza Rajabzadeh, Heidi Steendam
openaire +2 more sources
Analysis of Hybrid PAPR Reduction Methods of OFDM Signal for HPA Models in Wireless Communications
IEEE Access, 2020 Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Designing a High Power Amplifier (HPA) with high PAPR is not a wise technique as it roots the amplifier to operate in a non-linear region which is ...
Sravanti Thota +2 more
doaj +1 more source