Results 101 to 110 of about 9,227 (221)
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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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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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
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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
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A Comparison of Several Gradient Based Optimization Algorithms for PAPR Reduction in OFDM Systems
, 2012 International audienceThe aim of this paper is to evaluate and compare different optimization algorithms for Peak to Average Power Ratio (PAPR) reduction in Orthogonal Frequency Division Multiplexing (OFDM) systems. Based on Tone Reservation (TR) method,
Bachir, Smail +4 more
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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
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L'optimalité de l'OFDM en termes de performance en PAPR [PDF]
, 2015 National audienceLes systèmes multi-porteuses, et en particulier leur structure de modulation, connaissent un intérêt croissant. Suivant la forme d'onde considérée, plusieurs mesures de performance peuvent changer comme le PAPR (Peak-to-Average Power ...
Chafii, Marwa +2 more
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Journal of Fundamental and Applied Sciences, 2018 This article was withdrawn and retracted by the Journal of Fundamental and Applied Sciences and has been removed from AJOL at the request of the journal Editor in Chief and the organisers of the conference at which the articles were presented (www.iccmit.net). Please address any queries to editor@jfas.info.
Chandio, A. F. +3 more
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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
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PAPR Reduction and Sidelobe Suppression in Cognitive OFDM - A Survey [PDF]
Cognitive radio (CR) is one of the key technology providing a new way to enhance the utilization of available spectrum effectively. The multicarrier modulation (MCM) technique which is widely used is Orthogonal Frequency Division Multiplexing (OFDM ...
Moorthy, Ms. Yamuna K. +2 more
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