Results 41 to 50 of about 88,007,393 (199)

Reduced Complexity SLM Method for PAPR Reduction

Journal of Engineering, 2019
In this paper, the computational complexity will be reduced using a revised version of the selected mapping (SLM) algorithm. Where a partial SLM is achieved to reduce the mathematical operations around 50%. Although the peak to average power ratio (PAPR)
Zahraa Ali Jawad
doaj   +1 more source

Rigorous Performance Characterisation of AI‐Enhanced 6G Underwater Optical Wireless Networks: Link Budget Correction and Empirical Gain Validation

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
This document presents a revised mathematical framework for underwater 6G networks addressing common mistakes in research that result in overly optimistic outcomes. By employing established physical models and stringent technical limitations, we create a self‐validated benchmark of 776 Mbps over a distance of 44.8 m in clear ocean water with ...
Yousuf Islam, Md. Imam Hossain, Md. Jehadul Islam Mony   +2 more
wiley   +1 more source

Peak-to-average power ratio of a Zipper signal [PDF]

, 2001
We investigate the peak-to-average power ratio (PAR) and its effects on the performance of Zipper-VDSL systems. The spectrum and the out of band power when passing through a nonlinear device is also investigated.
Jayalath, Dhammika, Tellambura, Chintha
core   +1 more source

On PAPR Reduction in Pilot-Assisted Optical OFDM Communication Systems

IEEE Access, 2017
This paper presents a novel theoretical characterization of the pilot-assisted (PA) technique proposed for peak-to-average-power-ratio (PAPR) reduction in optical orthogonal frequency division multiplexing (O-OFDM).
Funmilayo B. Offiong, Sinan Sinanovic, Wasiu O. Popoola   +2 more
doaj   +1 more source

Spectrally Compatible Deceptive Jamming Waveform Design for Synthetic Aperture Radar Countermeasures

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper focuses on the design of synthetic aperture radar (SAR) deceptive jamming waveforms with spectrum‐compatible capability. By using the synthesised jamming waveform, successful deception against the hostile SAR system is demonstrated by generating false targets with high fidelity in both range and azimuth.
Yuhao Chen, Bo Tang, Da Li, Yangjia Wang, Wenjun Wu   +4 more
wiley   +1 more source

Design and Optimization of Finite Alphabet Waveforms for Multiple‐Antenna Radar Covariance Matching

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This article propose a novel method for finite‐alphabet waveform generation based on constrained matrix decomposition. It also expands theoretical feasibility bounds for generating covariance matrices with binary waveforms, proves that matrices from autoregressive processes are always realizable and introduces an optimal adjustment procedure for ...
Karim Saifullin, Sajid Ahmed, Mohamed‐Slim Alouini   +2 more
wiley   +1 more source

NORM Technique based PAPR Reduction in MC-CDMA Systems

Journal of ICT Research and Applications, 2015
Multicarrier code division multiple access (MC-CDMA) is one of the promising technologies for future-generation wireless networks. It offers high data rates, protection against frequency-selective fading and efficient utilization of the spectrum.
Noor Mohammed Vali Mohamad, P. S Mallick, L. Nithyanandan, Srujan Dharmagadda, M. Surendrakumar, M. Palanivelan   +5 more
doaj   +1 more source

Palm Date Leaf Clipping: A New Method to Reduce PAPR in OFDM Systems

Information, 2020
Orthogonal frequency division multiplexing (OFDM) is the key technology used in high-speed communication systems. One of the major drawbacks of OFDM systems is the high peak-to-average power ratio (PAPR) of the transmitted signal.
Brahim Bakkas, Reda Benkhouya, Idriss Chana, Hussain Ben-Azza   +3 more
doaj   +1 more source

Joint 2‐D LFM Modulation and Mismatched Filter Design in Dual‐Function Radar‐Communication System

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper proposes a joint 2‐D LFM modulation and mismatched filtering design for military‐grade dual‐function radar‐communication systems. The novel scheme modulates data onto both the initial frequency and chirp rate of LFM pulses, boosting data rates whilst preserving the constant‐envelope property critical for high‐power transmission.
Kehao Wang, Zixuan Zhang, Ke Zhang, Xiaobai Li, Wei Cheng, Tony Quek   +5 more
wiley   +1 more source

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam, Anuar Mat Safar, Norizan Mohamed Nawawi, Mohd Nordin Junita, Aymen Abdalmunam Hameed, Ridha Ejbali   +5 more
wiley   +1 more source