Results 101 to 110 of about 9,472 (221)
A Practical Algorithm for Physical Layer Encryption Under Constant Envelope Constraint
IEEE AccessPhysical Layer Encryption (PLE) techniques have gained increasing attention recently as they ensure security without requiring heavy coordination or time-consuming secret key establishment.
Clement Leroy +3 more
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PERFORMANCE IMPROVEMENT OF OFDM SYSTEM BY PEAK TO AVERAGE POWER REDUCTION THROUGH PULSE SHAPING TECHNIQUE [PDF]
ICTACT Journal on Communication Technology, 2010 OFDM is a form of multicarrier modulation technique with high spectral efficiency, robustness to channel fading, immunity to impulse interference, uniform average spectral density capacity of handling very strong echoes and non-linear distortion. Despite
Susmita Das +2 more
doaj
Tongxin xuebao, 2023 To solve the problem of limited number of sequences in the mutually orthogonal complementary code set and high peak-to-average power ratio (PAPR) in MC-CDMA system, a construction of asymptotically optimal a periodic binary QCSS with low column vector ...
Yubo LI +3 more
doaj
Peak-to-Average Power Ratio analysis in MIMO systems [PDF]
, 2006 International audienceIn this paper, we analyze the Peak-to-Average Power Ratio (PAPR) in Multiple Input Multiple Output (MIMO) systems based on Alamouti diversity scheme. This analysis is at both transmitter and re- ceiver sides with channel influences.
Louët, Yves, Rihawi, Basel
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A Novel Approach to Deducing of the Data- PAPR Relation for OFDM System
Journal of Engineering and Sustainable Development, 2012 Orthogonal Frequency Division Multiplexing (OFDM) is a very attractive technique for high-data-rate transmission in wireless and wired applications. The main drawback of the OFDM technique is its high peak to average power ratio (PAPR).
Dhafer R. Zaghar, Tahreer Sh. Mahmoud
doaj
International Journal of Advance Research and InnovationOrthogonal Frequency Division Multiplexing (OFDM) is a promising modulation technique widely used in modern wireless communication systems due to its robustness against multipath fading and high spectral efficiency. However, a major drawback of OFDM is its high Peak-toAverage Power Ratio (PAPR), which leads to nonlinear distortion when passing through ...
Velagandhula Suchithra +4 more
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Peak To Average Power Ratio (PAPR) Reduction Technique Using Selective Mapping in OFDM System
INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENTOFDM is an excellent, interference-free multicarrier modulation technique that is very efficient with the available spectrum. When practical power amplifiers are employed at the transmitter, the high peak to average power ratio (PAPR) of OFDM systems causes power inefficiency and signal distortion, which is a significant disadvantage. A distortion-free
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Constellation Compaction Design to Reduce Both PAPR and Average Power in OFDM Systems
EURASIP Journal on Wireless Communications and Networking, 2010 This paper proposes a novel way to compact the constellation points in QAM modulation schemes and exploits this compaction to reduce the peak to average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems.
Al-Shaikhi Ali
doaj
Journal of Applied Engineering & Technology (JAET), 2019 Orthogonal Frequency Division Multiplexing (OFDM) signal is considered a good candidate for wireless systems because it offers diversity gain in frequency selective channels. As in other multicarrier schemes, however, OFDM suffers from high peak to average power ratio (PAPR).
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, 2020 Orthogonal Frequency Division Multiplexing (OFDM) is an effective method for transmission data with high speed rate. OFDM system uses orthogonal subcarrier to transfer data which make this system more efficient than multi carrier system, by exploit all the carrier frequency band.
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