Results 121 to 130 of about 25,708 (247)

Retracted: Peak to average power ratio (PAPR) reduction technique in orthogonal frequency division multiplexing (OFDM) using block coding

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This article was withdrawn and retracted by the Journal of Fundamental and Applied Sciences and has been removed from AJOL at the request of the journal Editor in Chief and the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., Das, B., Faud, N., Abdullah, M.F.L.   +3 more
openaire   +1 more source

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
doaj  

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., Pillai, Dr. Sakuntala S., Stephen, Martha Ann   +2 more
core   +1 more source

Deep Learning Integration in PAPR Reduction in 5G Filter Bank Multicarrier Systems [PDF]

Iranian Journal of Electrical and Electronic Engineering
High peak-to-average power ratio (PAPR) has been a major drawback of Filter bank Multicarrier (FBMC) in the 5G system. This research aims to calculate the PAPR reduction associated with the FBMC system.
Mohamed Hussien Moharam, AYA W. wafik
doaj  

Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals

Tongxin xuebao, 2015
Considering the drawbacks of the traditional companding transforms，an efficient companding scheme combined with iterative filtering was proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals.
Chao YANG, Yong WANG, Jian-hua GE
doaj  

Analyzing Peak-to-Average Power Ratio Characteristics in Multi-Channel Intensity Modulation and Direct Detection Flexible Transceivers Deploying Inverse Fast Fourier Transform/Fast Fourier Transform-Based Processing. [PDF]

Sensors (Basel), 2023
Chen L, Huang X, Jin W, Wang X, Yang G, Jiang M, Huang Y, Tang J.   +7 more
europepmc   +1 more source

Simulation and comparative study for peak to average power ratio (PAPR) reduction techniques in OFDM for wireless communications

, 2020
Orthogonal Frequency Division Multiplexing (OFDM) is an effective method for transmission data with high speed rate. OFDM system uses orthogonal subcarrier to transfer data which make this system more efficient than multi carrier system, by exploit all the carrier frequency band.
openaire   +1 more source

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

Journal 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, Majid A. Alwan, Fadhil S. Hasan   +2 more
doaj  

Low complexity hybrid algorithm for improving PAPR BER and PSD in OTFS under diverse channel conditions. [PDF]

Sci Rep
Kumar A, Nanthaamornphong A, Gaur N, Masud M.   +3 more
europepmc   +1 more source

A fully integrated harmonic injection and envelope-tracking architecture to extend the linearity of RF power amplifiers under high PAPR. [PDF]

Sci Rep
Ziraksaz F, Hassanzadeh A.
europepmc   +1 more source