Results 71 to 80 of about 10,682,329 (212)
Frequency Comb Effect on Chaos in Semiconductor Lasers, a Bifurcation Study
International Journal of Optics, Volume 2025, Issue 1, 2025.This study investigates the effects of optical frequency comb injection on the chaotic dynamics of semiconductor lasers through a bifurcation analysis. By examining the behavior of semiconductor lasers under different comb parameters (i.e., the number of signals, comb spacing), the research explores how these factors influence the system’s transition ...
Najm M. Al-Hosiny, Haochong Huang
wiley +1 more source
Performance evaluation of OFDM and impulse-radio ultra-wideband over fiber distribution for in-building networks [PDF]
, 2009 This paper reports the compared performance of the two main ultra-wideband (UWB) implementations, OFDM-based (OFDM-UWB) and impulse-radio UWB, when transmitted over optical fiber for in-building communications employing external electro-optic modulation.
Roberto Llorente +7 more
core +1 more source
Laser &Photonics Reviews, Volume 18, Issue 8, August 2024.Simultaneous Power over Fiber delivery and transmission of 5G New Radio over a single Hollow Core or Multicore Fiber is demonstrated at distances of ten kilometers, yielding promising results compared to Single Mode Fibers. Optically powering a Bluetooth Low Energy load while transmitting 256 QAM data on a 3 GHz RF signal with no degradation is ...
Rubén Altuna +3 more
wiley +1 more source
Investigating delay of the media access control protocols for IoT‐RoF using quantum entanglement
IET Networks, Volume 13, Issue 4, Page 324-337, July 2024.IoT‐RoF QE‐based: MAC Protocol Delay Study. Abstract One of the significant challenges of the Radio over fibre (RoF) Medium Access Control (MAC) protocol is the propagation delay. This delay can lead to serious issues, such as higher propagation delay resulting in collisions and unnecessary retransmissions.
Shakir Salman Ahmad +2 more
wiley +1 more source
Multilevel modulated signal transmission over serial single-mode and multimode fiber links using vertical-cavity surface-emitting lasers for millimeter-wave wireless communications [PDF]
, 2007 Quadrature phase-shift keying, 16 quadrature amplitude modulation (QAM), and 64-QAM data transmission-Worldwide Interoperability for Microwave Access modulation schemes-at 6 and 20 MS/s is demonstrated for a link that emulates a cost-effective 1.55-m ...
Shen, Pengbo +3 more
core +1 more source
Radio over fibre distribution systems for ultra-wide band and millimetre wave applications [PDF]
, 2011 Short range wireless technology such as ultra-wideband (UWB) and 60 GHz millimetre wave (mm-wave) play a key role for wireless connectivity in indoor home, office environment or large enclosed public areas.
Shams Eldin, Haymen
core +2 more sources
Expert Systems, Volume 41, Issue 2, February 2024.Abstract One of the most common attacks is man‐in‐the‐middle (MitM) which, due to its complex behaviour, is difficult to detect by traditional cyber‐attack detection systems. MitM attacks on internet of things systems take advantage of special features of the protocols and cause system disruptions, making them invisible to legitimate elements.
Álvaro Michelena +7 more
wiley +1 more source
Simultaneous Dual Band Transmission Over Multimode Fiber-Fed Indoor Wireless Network [PDF]
, 2006 Performance measurements of different combinations of digital enhanced cordless telecommunications packet radio service, global system for mobile communications, universal mobile telecommunication service, and 802.11g (54 Mbps) signals in a dual band ...
Lethien, Christophe +7 more
core +1 more source
Performance Analysis of DP‐QAM‐Based Optical OFDM PON Employing Optical Multicarrier
Journal of Engineering, Volume 2024, Issue 1, 2024.This work proposes a new hybrid bidirectional standard single mode fiber (SSMF)/free space optical (FSO) dual polarization quadrature amplitude modulation (DP‐QAM) employing optical orthogonal frequency division multiplexing (OFDM). An optical multicarrier generator (OMG) source is utilized. The suggested model is simulated using VPI photonics software.
Ibrahim Luay +2 more
wiley +1 more source
Research Progress on Multi-dimensional Multi-order Modulation Technology in Radio over Fiber System
Guangtongxin yanjiu, 2023 Recently, Radio over Fiber (RoF) technology has become a hot research topic in the broadband communication access network field and has attracted much attention in the industry.
LI Yan-lin +11 more
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