Results 61 to 70 of about 26,554 (242)

Progressive Image Transmission over OFDM System with Minimum Peak to Average Power Ratio (PAPR)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 2015
The aim of this project is reduce the PAPR of transmitted OFDM signals, improve the transmitted image quality & The SPIHT coder is chosen as the source coding technique due to its flexibility of code rate and simplicity of designing optimal system. Trigonometric transforms are used in this scheme for improving the performance of the OFDM system and ...
openaire   +1 more source

Genetic Algorithm Based Bilayer PTS Scheme for Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal

IEEE Access, 2020
Partial transmit sequence (PTS) scheme has been well applied to reduce the high peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signal.
Siying Lv, Junhui Zhao, Lihua Yang, Qiuping Li   +3 more
semanticscholar   +1 more source

Pilot‐Based Iterative Path Estimation and Maximum Ratio Combining (MRC)–Based Signal Detection of Orthogonal Time–Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu, Sohini Basu Roy   +2 more
wiley   +1 more source

Low PAPR waveform synthesis with application to wideband MIMO radar [PDF]

, 2011
This paper considers the problem of waveform synthesis given a desired power spectrum. The properties of the designed waveforms are such that the overall system performance is increased.
Ström, Marie, Viberg, Mats
core   +1 more source

Sparse Indexed OFDM Modulation Technique For Visible Light Communication (VLC) With reduced Peak-to-Average Power Ratio (PAPR)

Journal of Physics: Conference Series, 2020
Abstract In this paper, diversity sparse activated subcarriers OFDM index modulation (DSASOFDM-IM) is proposed to improve the Energy Efficiency (EE) of interpolated sparse activated subcarriers OFDM index modulation (ISAS-OFDM-IM), which was proposed to improve spectrum efficiency (SE) and bite error rate (BER) of the OFDM modulation ...
Amgad F. Aziz, Omar A. M. Aly, Usama S. Mohammed   +2 more
openaire   +1 more source

Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib, Saad Saffah Hreshee, Martin Haardt   +2 more
wiley   +1 more source

Efficient PAPR reduction algorithm in OFDM based on nonlinear piecewise companding

Tongxin xuebao, 2021
Focusing on the high peak-to-average power ratio （PAPR） problem in orthogonal frequency division multiplexing （OFDM） systems， a generalized hybrid of rayleigh and sine distribution based nonlinear companding algorithm for PAPR reduction in OFDM systems ...
Zhitong XING, Yun LI, Deyi PENG, Bensi ZHANG, Kaiming LIU, Yuan’an LIU   +5 more
doaj   +2 more sources

Linearization Study of a Highly Efficient CMOS-GaN RF Pulse Width Modulation Based Transmitter [PDF]

, 2012
This paper studies linearity of a 2 GHz, 10 Watt peak output power RF pulse width modulation (RF-PWM) based transmitter. The transmitter incorporates a tunable load network class-E PA as the final output stage.
Acar, Mustafa, Andersson, Christer, Eriksson, Thomas, Fager, Christian, Jos, Rik, Özen, Mustafa   +5 more
core   +1 more source

A New SLM-UFMC Model for Universal Filtered Multi-Carrier to Reduce Cubic Metric and Peak to Average Power Ratio in 5G Technology

Symmetry, 2020
The new generation of wireless communication systems has adopted different waveforms. The universal filtered multicarrier is one of the adopted candidates that has symmetry with various numerology designs. However, the high peak to average power ratio is
Farooq Sijal Shawqi, L. Audah, Salama A. Mostafa, S. Gunasekaran, A. Baz, A. Hammoodi, H. Alhakami, M. H. Hassan, M. Jubair, Wajdi Alhakami   +9 more
semanticscholar   +1 more source

Digital Predistorter Implementation for Wideband Power Amplifiers in New Generation Wireless Systems Based on a Low‐Complexity Volterra Series Model

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 5, September/October 2025.
ABSTRACT In this article, we provide a novel, expanded, and adapted pruning approach for the Simplified Volterra Series (SVS) model that makes it applicable to a wider range of Power Amplifiers (PAs). The proposed Modified SVS (MSVS) model is then applied in a Digital Predistortion (DPD) architecture to linearize a 25 W Gallium Nitride (GaN) RF PA.
Haithem Rezgui, Ghalid Abib, Fatma Rouissi, Adel Ghazel   +3 more
wiley   +1 more source