Results 21 to 30 of about 12,284 (206)

PAPR Reduction Scheme for OFDM

open access: yesProcedia Technology, 2012
AbstractThis paper focused on peak to average power ratio (PAPR) reduction scheme for OFDM system. OFDM has several properties which make it an attractive modulation scheme for high speed transmission. the main draw back of OFDM is high PAPR. The high PAPR causes the interference and degraded the performance of the system while OFDM signal pass through
Bhad, Sandeep   +2 more
openaire   +1 more source

PAPR reduction of OFDM through pilot shifting [PDF]

open access: yes2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2015
6 pages, Proc. of 26th IEEE International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC), Hong Kong, Aug-September 2015, pp.
Hossain, Md. Sakir, Shimamura, Tetsuya
openaire   +2 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, Song, Y, Zhang, Y
core   +1 more source

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, Jiang, T, Qu, D, Song, Y, Yao, W
core   +1 more source

Compressive sensing based PAPR reduction in OFDM systems: Modified orthogonal matching pursuit approach

open access: yesICT Express, 2020
Orthogonal frequency division multiplexing (OFDM) has been proposed to achieve high data rate transmission in wireless communications. The OFDM system usually suffers from the high envelope fluctuations called peak-to-average power ratio (PAPR). The high
Ghanbar Azarnia   +2 more
doaj   +1 more source

Peak to average power ratio reduction techniques based on chirp selection for single and multi‐user orthogonal chirp division multiplexing system

open access: yesIET Signal Processing, 2023
This article deals with peak to average power (PAPR) reduction in a single and multi‐user orthogonal chirp division multiplexing (OCDM) context. Two methods for PAPR reduction based on the selection of the frequency variation (up or down) of the chirps ...
Vincent Savaux
doaj   +1 more source

A Simplified Scheme of Estimation and Cancellation of Companding Noise for Companded Multicarrier Transmission Systems [PDF]

open access: yes, 2015
Nonlinear companding transform is an efficient method to reduce the high peak-to-average power ratio (PAPR) of multicarrier transmission systems. However, the introduced companding noise greatly degrades the bit-error-rate (BER) performance of the ...
Jian, W.   +4 more
core   +2 more sources

Peak to average power ratio based spatial spectrum sensing for cognitive radio systems [PDF]

open access: yes, 2017
The recent convergence of wireless standards for incorporation of spatial dimension in wireless systems has made spatial spectrum sensing based on Peak to Average Power Ratio (PAPR) of the received signal, a promising approach.
Ghafoor, Abdul   +2 more
core   +1 more source

Analysis and Comparison of PAPR Reduction Techniques in OFDM Systems [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2015
The destructive impact of fading environments and also bandwidth limitations are two main challenges which communication is dealing with them. These challenges can affect on the growth of wireless communication and even cause reliable communications and ...
M.B. Noori Shirazi   +3 more
doaj   +1 more source

Data Detection and Code Channel Allocation for Frequency-Domain Spread ACO-OFDM Systems Over Indoor Diffuse Wireless Channels [PDF]

open access: yes, 2014
Future optical wireless communication systems promise to provide high-speed data transmission in indoor diffuse environments. This paper considers frequency-domain spread asymmetrically clipped optical orthogonal frequency-division multiplexing (ACOOFDM)
Chen, Ming   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy