Results 41 to 50 of about 918 (208)
IET Communications, Volume 19, Issue 1, January/December 2025.This article proposes a hybrid SLM+PTS+RNN algorithm to mitigate the high PAPR challenge in UFMC systems for B5G networks. The method significantly improves power efficiency (by 30%–40%) while maintaining BER and PSD performance, outperforming traditional PAPR reduction techniques.
Arun Kumar +2 more
wiley +1 more source
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.Smart hospitals have enormous potential to improve global standards of medical services. Integrating fifth‐generation (5G) and beyond 5G radio with the present healthcare framework can make hospitals smarter. High spectral access, data rate, capacity, low latency, and large data handling are requirements of innovative hospitals.
Arun Kumar +2 more
wiley +1 more source
Journal of Electrical and Computer Engineering, Volume 2018, Issue 1, 2018., 2018 A data clipping and normalization technique is employed to improve the performance of the overall direct detection optical orthogonal frequency division multiplexing (DCO‐OFDM) system. A detailed analysis of clipping distortion introduced by digital clipping and normalization is provided. The normalization operation amplifies the clipped data signal to
Jiang Wu, Zhongpeng Wang, Jit S. Mandeep
wiley +1 more source
PAPR Reduction in OFDM System by using Nonlinear Companding Technique
, 2014 Non linear companding technique is proposed to reduce the high peak to average power ratio (PAPR) of orthogonal frequency division multiplexing system.
, Ms. Pallavi Dhok, Ms. Manisha D. Raut
core +1 more source
A PAPR correction scheme for LoRa self‐jamming waveforms
IET Communications, Volume 18, Issue 19, Page 1588-1603, December 2024.A self‐jamming scheme of LoRa waveforms enabling secure transmissions is recently proposed in literature, which performs well in simulations. However, experiments on SDR equipment immediately showed that a transmission is impossible due to PAPR introduced by the waveform modification.
Clément Demeslay +5 more
wiley +1 more source
Advances in Condensed Matter Physics, Volume 2018, Issue 1, 2018., 2018 Light‐emitting diode‐ (LED‐) based visible light communication (VLC) has become a potential candidate for next generation high‐speed indoor wireless communication. Due to the limited modulation bandwidth of the LED, orthogonal frequency division multiplexing (OFDM) modulation is particularly preferred in the VLC system to overcome the ISI, which ...
Xinyue Guo +3 more
wiley +1 more source
Earth and Space Science, Volume 11, Issue 8, August 2024.Abstract The Terminal Tracking Camera (TTCam) imaging system on the NASA Lucy Discovery mission consists of a pair of cameras that are being used mainly as a navigation and target acquisition system for the mission's asteroid encounters. However, a secondary science‐focused function of the TTCam system is to provide wide‐angle broadband images over a ...
Y. Zhao +11 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 +5 more
doaj +2 more sources
An Enhanced Nonlinear Companding Scheme for Reducing PAPR of OFDM Systems [PDF]
, 2018 A new companding scheme for reducing the peak-to-average power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) systems is proposed in this study.
Adebisi, Bamidele +2 more
core +1 more source
An evaluation of modified µ-Law companding to reduce the PAPR of OFDM systems
, 2010 High peak-to-average power ratio (PAPR) is a common problem in OFDM transmissions. This paper investigates the influence and effects of various µ-Law companding parameters to assist in reducing the high values of PAPR.
Vallavaraj, Athinarayanan +2 more
core +1 more source