Results 41 to 50 of about 8,316 (179)

Distributions of Upper PAPR and Lower PAPR of OFDM Signals in Visible Light Communications

, 2014
Orthogonal frequency-division multiplexing (OFDM) in visible light communications (VLC) inherits the disadvantage of high peak-to-average power ratio (PAPR) from OFDM in radio frequency (RF) communications.
Baxley, Robert J., Yu, Zhenhua, Zhou, G. Tong   +2 more
core   +1 more source

Covariance Structure Modeling of Engineering Demand Parameters in Cloud‐Based Seismic Analysis

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 7, Page 1533-1551, June 2026.
ABSTRACT Probabilistic seismic demand modeling aims to estimate structural demand as a function of ground motion intensity—a critical stage in seismic risk assessment. Although many models exist to describe the structural demand, few consider the covariance among engineering demand parameters, potentially overlooking a key factor in improving the ...
Archie Rudman, Enrico Tubaldi, Roberto Gentile, John Douglas   +3 more
wiley   +1 more source

A new evaluation method for customer outage costs using long-term outage data and Monte Carlo simulation

International Journal of Electrical Power & Energy Systems
This paper introduces an effective evaluation method for customer outage costs and durations based on defining customer damage functions (CDFs) and processing the long-term interruption data.
Sajad Najafi-Shad, Mozhdeh Mollashahi, Seyyed Mohsen Sadr   +2 more
doaj   +1 more source

The neck region of the C-type lectin DC-SIGN regulates its surface spatiotemporal organization and virus-binding capacity on antigen presenting cells [PDF]

, 2012
The C-type lectin DC-SIGN expressed on dendritic cells (DCs) facilitates capture and internalization of a plethora of different pathogens. Although it is known that DC-SIGN organizes in nanoclusters at the surface of DCs, the molecular mechanisms ...
Alvarez, Ashby, Bakker, Banchereau, Bonifaz, Cambi, Cambi, Cambi, Cambi, Cambi, Chung, de Bakker, de Witte, Feinberg, Feinberg, Gaborski, Geijtenbeek, Geijtenbeek, Geijtenbeek, Geijtenbeek, Gringhuis, Itano, Itano, Khoo, Koopman, Liu, Liu, Lozach, Lozach, Ludwig, Menon, Mitchell, Neumann, Pohlmann, Puig-Kröger, Rappocciolo, Regan, Serrano-Gómez, Sierra-Filardi, Simmons, Smith, Soilleux, Steinman, Tacken, Tacken, Théry, Trombetta, van Kooyk, Yu, Zhu   +49 more
core   +5 more sources

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, Volume 38, Issue 27, 14 May 2026.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

PAPR Reduction and Data Security Improvement for OFDM Technique Using Chaos System

Journal of Communications Software and Systems, 2019
Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier technique because it produces several advantages such as higher spectral efficiency, high transmission rate, robustness to fading channel and etc..
Muntadher Kadhim Abdullah, Ali Jawad Ibada   +1 more
doaj  

PAPR in AFDM: Upper Bound and Reduction With Normalized μ-Law Companding

IEEE Access
Affine Frequency Division Multiplexing (AFDM) is an advanced waveform technique designed for environments with significant Doppler shifts and time-frequency dispersion.
Vundela Madhava Reddy, Hanumantharao Bitra   +1 more
doaj   +1 more source

Peak-to-Average Power Ratio in the Circuit Design of a 20MHz Bandwidth of a Wireless LAN IEEE 802.11n

International Journal of Technology, 2015
An important aspect of the Wireless Local Area Network’s (WLAN) physical layer design is its Peak-to-Average Power Ratio (PAPR) that has an important role in the power amplifier’s linearity and efficiency.
Hendra Setiawan
doaj   +1 more source

Advanced Fade Mitigation Techniques for Q/V Band SATCOM Systems

International Journal of Satellite Communications and Networking, Volume 44, Issue 3, Page 288-296, May/June 2026.
ABSTRACT Adaptive fade mitigation techniques, such as smart gateway diversity (SGD), are essential in addressing atmospheric fading affecting the operation of high throughput and very high throughput satellite systems at Ka‐band and beyond. Specifically, the Q/V‐band, offering up to 5 GHz of available spectrum, is very attractive for future high data ...
Marianna Biscarini, Arijit De, Lorenzo Luini, Carlo Riva, Antonio Martellucci, Roberto Nebuloni   +5 more
wiley   +1 more source

Spectrum Sharing for Device-to-Device Communication in Cellular Networks

, 2014
This paper addresses two fundamental and interrelated issues in device-to-device (D2D) enhanced cellular networks. The first issue is how D2D users should access spectrum, and we consider two choices: overlay (orthogonal spectrum between D2D and cellular
Andrews, Jeffrey G., Ghosh, Amitava, Lin, Xingqin   +2 more
core   +1 more source