Results 101 to 110 of about 12,284 (206)

Controlling Peak-to-Average Power Ratio in Orthogonal Frequency Division Multiplexing System

open access: yesJournal of Engineering and Sustainable Development, 2013
A major drawback of Orthogonal Frequency Division Multiplexing at the transmitter side is the high peak-to-average power ratio (PAPR) of the signal. Conventional solutions for this problem are to use a linear amplifier ( or to back-off the operating ...
Ismail Sh. Baqir
doaj  

PAPR Reduction of Complex Wavelet Packet Modulation (CWPM) System using a Novel Hybrid Technique over Selective Rayleigh Fading Channel

open access: yesJournal of Engineering and Sustainable Development, 2013
High Peak to Average Power Ratio (PAPR) of transmitted signal is one of the major drawbacks of the complex wavelet packet modulation (CWPM). Utilizing the advantage of concentrating the energy to certain subspaces of the discrete wavelet transform ...
Hikmat N. Abdullah   +2 more
doaj  

Pilot-assisted PAPR reduction technique for O-OFDM using multiple LEDs in VLC systems [PDF]

open access: yes, 2016
Ogunkoya, Funmilayo Bimpe   +2 more
core   +1 more source

PAPR reduction in OFDM systems

open access: yes, 2008
In the last years wireless communications have experienced a fast growth due to the high mobility that they allow. However, wireless channels have some disadvantages, like multipath fading, that make them difficult to deal with. A modulation that efficiently deals with selective fading channels is OFDM. The advancements in digital signal
openaire   +1 more source

Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2011
A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming ...
Svantesson Thomas   +3 more
doaj  

Evaluation of clipping based iterative PAPR reduction techniques for FBMC systems. [PDF]

open access: yesScientificWorldJournal, 2014
Kollár Z   +4 more
europepmc   +1 more source

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