Results 81 to 90 of about 88,007,393 (199)

Peak-to-average power ratio reduction based on cross-correlation in OFDM systems [PDF]

, 2014
Two of the most important techniques of Peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems are Partial Transmit Sequence PAPR (PTS-PAPR) and Cross-Correlation-PTS.
Sulaiman, Nasri, Mohd Ali, Borhanuddin, Kazemian, Mohsen, Varahram, Pooria, Nasri Sulaiman, Mohammady, Somayeh, Mohsen Kazemian, Somayeh Mohammady, Shaiful Jahari B. Hashim, Hashim, Shaiful Jahari, Pooria Varahram, Borhanuddin B. Mohd. Ali   +11 more
core   +1 more source

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   +2 more sources

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  

A novel generalized oppositional biogeography-based optimization algorithm: application to peak to average power ratio reduction in OFDM systems

Open Mathematics, 2016
A major drawback of orthogonal frequency division multiplexing (OFDM) signals is the high value of peak to average power ratio (PAPR). Partial transmit sequences (PTS) is a popular PAPR reduction method with good PAPR reduction performance, but its ...
Goudos Sotirios K.
doaj   +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  

A differential recursive scheme for suppression of Peak to average power ratio for OFDM

, 2006
A differential recursive scheme for suppression of Peak to average power ratio (PAPR) for Orthogonal frequency division multiplexing (OFDM) signal is proposed in this thesis.
Liu Y, Liu, Y, Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China., Shi Y   +2 more
core  

Adaptive Interference Restriction Among Spatial Streams Based on Difference in Singular Values for PAPR Reduction in Uplink Eigenmode Massive MIMO Transmission

IEEE Access
In this paper, we propose two peak-to-average power ratio (PAPR) reduction methods that apply adaptive in-band interference restriction based on singular value differences between spatial channels in uplink eigenmode massive multiple-input multiple ...
Yuta Abekura, Takanori Hara, Satoshi Suyama, Satoshi Nagata, Kenichi Higuchi   +4 more
doaj   +1 more source

A Novel PAPR Reduction Scheme Based on Deep Autoencoder Network for FBMC Systems

IEEE Access
Filter bank multicarrier (FBMC) is a crucial complementary waveform to orthogonal frequency-division multiplexing (OFDM) in future communication systems.
Xing Cheng, Deli Chen, Shuaishuai Li, Shanbao He, Dejin Kong   +4 more
doaj   +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

Design and Implementation of OFDM transmitter with Low Peak-to-Average Power Ratio

, 2007
High Peak-to-Average Power Ratio (PAPR) poses serious problem for the analog front end power amplifier design of Orthogonal Frequency Division Multiplexing (OFDM) systems. In this paper, an OFDM transmitter with PAPR reduction is proposed.
Wang, Ya-Cheng, 王亞群
core