Results 31 to 40 of about 1,797 (181)

PAPR-Aware Massive MIMO-OFDM Downlink

open access: yesIEEE Access, 2019
We investigate the peak-to-average power ratio (PAPR) reduction problem in orthogonal frequency-division multiplexing-based massive multi-user (MU) multiple-input multiple-output (MIMO) downlink systems.
Rafik Zayani   +2 more
doaj   +1 more source

PAPR Reduction Scheme for OFDM

open access: yesProcedia Technology, 2012
AbstractThis paper focused on peak to average power ratio (PAPR) reduction scheme for OFDM system. OFDM has several properties which make it an attractive modulation scheme for high speed transmission. the main draw back of OFDM is high PAPR. The high PAPR causes the interference and degraded the performance of the system while OFDM signal pass through
Bhad, Sandeep   +2 more
openaire   +1 more source

Modeling and Optimization of Frequency‐Doubled Radio‐Over‐Fiber Link Based on Deep Learning Technique

open access: yesAdvanced Photonics Research, Volume 7, Issue 3, March 2026.
This article proposes a deep learning (DL) approach for modeling and optimizing frequency‐doubled radio‐over‐fiber links. By collectively replacing traditional components with DL model, accurate system evaluation is achieved. Moreover, through an end‐to‐end architecture, performance optimization is accomplished.
Difei Shi   +3 more
wiley   +1 more source

A Hybrid PAPR Reduction Method Based on SLM and Multi-Data Block PTS for FBMC/OQAM Systems

open access: yesInformation, 2018
The filter bank multicarrier employing offset quadrature amplitude modulation (FBMC/OQAM) is a candidate transmission scheme for 5G wireless communication systems. However, it has a high peak-to-average power ratio (PAPR). Due to the nature of overlapped
Han Wang
doaj   +1 more source

Fractional Fourier Domain PAPR Reduction

open access: yesGLOBECOM 2025 - 2025 IEEE Global Communications Conference
High peak-to-average power ratio (PAPR) has long posed a challenge for multi-carrier systems, impacting amplifier efficiency and overall system performance. This paper introduces dynamic angle fractional Fourier division multiplexing (DA-FrFDM), an innovative multi-carrier system that effectively reduces PAPR for both QAM and Gaussian signals with ...
Yewen Cao, Yulin Shao, Rose Qingyang Hu
openaire   +2 more sources

PAPR Reduction in WiMAX System [PDF]

open access: yes, 2013
Broadband Wireless Access (BWA) has emerged as a promising solution for last mile access technology to provide high speed internet access in the residential as well as small and medium sized enterprise sectors. At this moment, cable and DSL technologies are providing broadband service in these sectors.
Mona Shokair, Hifzalla Sakr
openaire   +1 more source

Expanded Phenotype of PAX2‐Related Papillorenal Syndrome: A Case Featuring FSGS, Atypical Retinopathy, Cerebellar Hypoplasia, and ADHD

open access: yesClinical Case Reports, Volume 14, Issue 2, February 2026.
ABSTRACT Papillorenal syndrome (PAPRS), or renal coloboma syndrome, is a rare autosomal dominant disorder caused by PAX2 mutations. It classically manifests with renal hypodysplasia and optic nerve anomalies. However, recent literature suggests an expanding phenotypic spectrum.
Nadira Sultana   +2 more
wiley   +1 more source

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

open access: yesIEEE Access
Filter bank multicarrier (FBMC) is a crucial complementary waveform to orthogonal frequency-division multiplexing (OFDM) in future communication systems.
Xing Cheng   +4 more
doaj   +1 more source

Contribution of non‐orthogonal multiple access signalling to practical multibeam satellite deployments

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 73-88, January/February 2026.
The potential gains of NOMA were evaluated in a satellite system with heterogeneous receivers, after considering the use of specific DVB‐S2X MODCODs, along with the impact of non‐linearities. It was concluded that a judicious power allocation in NOMA, jointly optimized with the IBO of the PAs, can yield significant sum‐rate gains.
Tomás Ramírez, Carlos Mosquera
wiley   +1 more source

Enhanced Sub-Block Partitioning and Effective Post-Processing for the PTS Algorithm

open access: yesTikrit Journal of Engineering Sciences
The transmitted OFDM is a multicarrier modulation technique for efficient and reliable data communication. This technique forces a major problem during the signal transmission process, which is a high peak-to-average power ratio (PAPR), leading to ...
Omar Khaldoon Abdulrahman   +2 more
doaj   +1 more source

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