Results 51 to 60 of about 353 (159)

Nanophotonic Devices for Radio Over Fiber (RoF) Technologies in Telecommunications Networks

Radioelectronics. Nanosystems. Information Technologies.
Background: The combination of nanophotonic devices with Radio Over Fibre (RoF) technology has the potential to enhance telecommunications networks significantly. RoF technology, known for its ability to transport wireless data rapidly across optical fibres, has challenges such as capacity limitations and latency issues.
Hanan Mahmood Shukur, Sirwan Kareem Jalal, Maher Waleed Saab, Sharmeen Izzat Hassan, Ghazwan Saleem Naamo Ghno, Saif Saad Ahmed, Salama Idris Mustafa, Abdymanap Z. Pirmatov   +7 more
openaire   +2 more sources

All-Optical Generation of Two IEEE802.11n Signals for 2 $\times$ 2 MIMO-RoF via MRR System

IEEE Photonics Journal, 2014
A radio-over-fiber system capable of very spectrally efficient data transmission and based on multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) is presented here.
I. S. Amiri, S. E. Alavi, N. Fisal, A. S. M. Supa'at, H. Ahmad   +4 more
doaj   +1 more source

Power Over Fiber and Analog Radio Over Fiber Simultaneous Transmission Over Long Distance in Single Mode, Multicore, and Hollow Core Fibers

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, Yongmin Jung, Periklis Petropoulos, Carmen Vázquez   +3 more
wiley   +1 more source

Latency analysis on W-band hybrid fiber-wireless link using software defined radio in real time

Revista Facultad de Ingeniería Universidad de Antioquia, 2018
This paper reports an experimental comparison and analysis of latency for different modulation techniques at different data rates in W-band Radio-over-Fiber (RoF) transmission links. In addition, a software defined radio called GNU-Radio is employed with
Mónica Andrea Rico-Martínez, Álvaro Morales-Vicente, Rafael Puerta-Ramírez, Víctor Mehmeri-Dantas, Idelfonso Tafur-Monroy, Gloria Margarita Varón-Durán   +5 more
doaj  

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, Hamed Al‐Raweshidy, Rajagopal Nilavalan   +2 more
wiley   +1 more source

Analisis Kinerja Jaringan Radio over Fiber (RoF) menggunakan Optical Amplifier

Jurnal Litek : Jurnal Listrik Telekomunikasi Elektronika
Perkembangan teknologi telekomunikasi menuntut peningkatan kecepatan dan keandalan pertukaran data. Meskipun sistem transmisi kabel memiliki kecepatan tinggi dan performa prima, namun biaya instalasi yang dibutuhkan cukup besar. Sebagai solusi, Radio over Fiber (RoF) dihadirkan untuk mengintegrasikan jaringan nirkabel dan kabel.
Sabiqun Naufal, Misriana Misriana, Hanafi Hanafi   +2 more
openaire   +1 more source

A novel intelligent approach for man‐in‐the‐middle attacks detection over internet of things environments based on message queuing telemetry transport

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, José Aveleira‐Mata, Esteban Jove, Martín Bayón‐Gutiérrez, Paulo Novais, Oscar Fontenla Romero, José Luis Calvo‐Rolle, Héctor Aláiz‐Moretón   +7 more
wiley   +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, Tahreer Safa’a Mansour, Muhammad Nasir Khan   +2 more
wiley   +1 more source

Integration of radio over fiber (RoF) with fiber to the home (FTTH) schemes [PDF]

, 2021
Two integrating techniques and topologies for fiber optic network systems such as RoF and FTTH have been studied and presented in this project. Two digital signals with data rate 622Mb/s and 1.25Gb/s are considered as the two service signals to be hybrid.
openaire   +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, SHAO Yu-feng, WANG An-rong, YU Ni, YANG Qi-ming, TIAN Qing, YI Lin-fang, LI Chong, CHEN Peng, LIU Shuan-fan, ZUO Ren-jie, YUAN Jie   +11 more
doaj