Results 131 to 140 of about 1,797 (181)

Long-term efficacy of 10 kHz spinal cord stimulation in managing painful diabetic neuropathy: A post-study survey. [PDF]

open access: yesPain Pract
Petersen EA   +19 more
europepmc   +1 more source

New companding transform for PAPR reduction in OFDM

IEEE Communications Letters, 2010
High peak-to-average power ratio (PAPR) is a major drawback of orthogonal frequency division multiplexing (OFDM) systems. Among the various PAPR reduction techniques, companding transform appears attractive for its simplicity and effectiveness. This paper proposes a new companding algorithm.
exaly   +2 more sources

PAPR Reduction for 5G Waveforms

2018 6th International Conference on Wireless Networks and Mobile Communications (WINCOM), 2018
In order to meet 5G mobile communication requirements in terms of data rate, high spectral efficiency and low latency and complexity, multicarrier modulation is being investigated as a part of 5G physical layer solutions. Filter Bank Multicarrier, Universal Filtered Multicarrier and Resource Block Filtered Orthogonal Frequency Division Multiplexing are
Hayat Jebbar   +2 more
openaire   +1 more source

PAPR Reduction by Symbol Nulling

VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009
As a multicarrier signal can exhibit large peaks in the time domain, the amplifier used to transmit the multicarrier signal must be highly linear, and thus expensive, to avoid non-linear signal distortion. To reduce the high peak-to-average power ratio, and hence to allow cheaper amplifiers, several techniques are described in the literature.
Dieter Van Welden, Heidi Steendam
openaire   +1 more source

FBMC-OQAM PAPR Reduction Schemes

2020 International Conference on Information and Communication Technology Convergence (ICTC), 2020
Peak to average power ratio (PAPR) is a major problem that affects the performance of multicarrier systems. Filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is one of modulation schemes that has raised the attention of researchers given its superiority in terms of spectral efficiency. As any other multicarrier modulation
Nahla Ali Mohamed Al Harthi   +2 more
openaire   +1 more source

Soft decision PAPR reduction in OFDM

International Multi-Conference on Systems, Sygnals & Devices, 2012
This work deals with problem of improving the peak-to-mean average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signals. Clipping is simple and efficient way to overcome the large PAPR in OFDM systems ; however this technique results in bit error rate (BER) increasing in the receiver.
Rožić, Nikola, Radić, Joško
openaire   +2 more sources

Floating OFDM-SNM for PAPR and OOBE Reduction

2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021
The novel orthogonal frequency division multiplexing with subcarrier number modulation (OFDM-SNM) transmission scheme offers high spectral and energy efficiency compared to the conventional OFDM; this is due to the extra information bits loaded over the active subcarriers.
Ahmad M. Jaradat   +2 more
openaire   +1 more source

Receiver based PAPR reduction in OFDMA

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
High peak-to-average power ratio is one of the major drawbacks of orthogonal frequency division multiplexing (OFDM). Clipping is the simplest peak reduction scheme, however, it requires clipping mitigation at the receiver. Recently compressed sensing has been used for clipping mitigation (by exploiting the sparse nature of clipping signal).
Anum Ali   +3 more
openaire   +1 more source

Extrapolated Projection Methods for PAPR Reduction

2018 26th European Signal Processing Conference (EUSIPCO), 2018
Over more than the last decade, there has been a significant effort in research to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems. This effort has been mainly driven by the need for enhancing the efficiency of power amplifiers.
Jochen Fink   +3 more
openaire   +1 more source

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