Results 11 to 20 of about 88,236,480 (283)

Peak-to-average power ratio of a Zipper signal [PDF]

open access: yesIEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
We investigate the peak-to-average power ratio (PAR) and its effects on the performance of Zipper-VDSL systems. The spectrum and the out of band power when passing through a nonlinear device is also investigated. We further evaluate the performance with a recently proposed PAR reduction technique for orthogonal frequency division multiplexing (OFDM ...
A. Dhammika S. Jayalath   +1 more
openaire   +3 more sources

On the peak-to-average power ratio of M-sequences [PDF]

open access: yesFinite Fields and Their Applications, 2006
Let \(\mathbb F_q\), \(q=2^m\), be a finite field with a primitive element \(\alpha\). For \(\beta\in \mathbb F_q^*\), the \(M\)-sequence is: \[ a_k(\beta )=(-1)^{\text{tr}(\beta\alpha^k)},\qquad 0\leq k < q-1, \] where \(\text{tr}\) is the trace form \(\mathbb F_q\) to \(\mathbb F_2\).
Idan Alrod   +2 more
openaire   +3 more sources

An intelligent genetic algorithm for PAPR reduction in a multi-carrier CDMA wireless system [PDF]

open access: yes, 2008
— A novel intelligent genetic algorithm (GA), called Minimum Distance guided GA (MDGA) is proposed for peak-average-power ratio (PAPR) reduction based on partial transmit sequence (PTS) scheme in a synchronous Multi-Carrier Code Division Multiple Access (
Chen, HH, Ni, Q, Zhang, Y, Song, Y
core   +8 more sources

Intelligent genetic algorithms for next-generation broadband multi-carrier CDMA wireless networks [PDF]

open access: yes, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This dissertation proposes a novel intelligent system architecture for next-generation broadband multi-carrier CDMA wireless networks.
Zhang, Yang
core   +7 more sources

Peak-to-average power ratio mitigation in quasi-orthogonal space time block coded MIMO-OFDM systems using selective mapping. [PDF]

open access: yes, 2008
A study of a peak-to-average power ratio (PAPR) reduction scheme for quasi-orthogonal spacetime block coded multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems based on selective mapping (SLM) is presented.
Jonathon Chambers (1251609)   +1 more
core   +8 more sources

Trellis pruning for peak-to-average power ratio reduction [PDF]

open access: yesProceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
5 pages, 10 figures, 2005 IEEE International Symposium on Information ...
Mei Chen, Oliver M. Collins
openaire   +3 more sources

Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems [PDF]

open access: yes, 2006
Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Yao, W, Qu, D, Song, Y, Jiang, T
core   +1 more source

Effect of gear ratio on peak power and time to peak power in BMX cyclists. [PDF]

open access: yes, 2016
The aim of this study was to ascertain if gear ratio selection would have an effect on peak power and time to peak power production in elite Bicycle Motocross (BMX) cyclists. Eight male elite BMX riders volunteered for the study.
Roberts, Simon J.   +7 more
core   +1 more source

Generalized Discrete Fourier Transform for FBMC Peak to Average Power Ratio Reduction

open access: yesIEEE Access, 2019
Filter bank multicarrier (FBMC) is a strong candidate as a waveform based technique in advanced wireless communication systems (e.g. 5G), as an alternative to orthogonal frequency division multiplexing (OFDM). Like all multicarrier modulation techniques,
Mohamed A. Aboul-Dahab   +2 more
doaj   +1 more source

CLIPPING TECHNIQUES FOR PAPR REDUCTION IN FBMC/OQAM SYSTEM OVER DOUBLY-SELECTIVE CHANNELS

open access: yesJournal 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  

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