Results 21 to 30 of about 34,163 (302)

Performance Evaluation of a 4 × 20-Gbps OFDM-Based FSO Link Incorporating Hybrid W-MDM Techniques

Frontiers in Physics, 2021
Free space optics (FSO) has been recognized as a crucial technique to meet the high-bandwidth requirements in future wireless information transmission links.
Mehtab Singh, Mehtab Singh, Saleh Chebaane, Saleh Chebaane, Sana Ben Khalifa, Sana Ben Khalifa, Amit Grover, Sanjeev Dewra, Mohit Angurala   +8 more
doaj   +1 more source

Space-Division Multiplexing for Microwave Photonics [PDF]

2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
Despite Space division multiplexing fibers were initially envisioned as pure transmission media, they exhibit as well great potential for signal processing. We review here different solutions we developed for microwave signal processing devices and links.
Sergi García, Rubén Guillem, Mario Ureña, Ivana Gasulla   +3 more
openaire   +2 more sources

MIMO-OFDM/OCDM low-complexity equalization under a doubly dispersive channel in wireless sensor networks

International Journal of Distributed Sensor Networks, 2020
In this article, three novel systems for wireless sensor networks based on Alamouti decoding were investigated and then compared, which are Alamouti space–time block coding multiple-input single-output/multiple-input multiple-output multicarrier ...
Ahmad AA Solyman, Hani Attar, Mohammad R Khosravi, Baki Koyuncu   +3 more
doaj   +1 more source

Multi-element fiber for space-division multiplexed optical communication system [PDF]

, 2014
This paper reviews a novel approach of implementing space-division multiplexing (SDM) based on Multi-element Fiber (MEF) technology. The MEF geometry provides for ultra-low crosstalk between the spatial channels while full compatibility with standard WDM
J. K. Sahu, D. J. Richardson, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., V. J. F. Rancano, T. C. May-Smith, P. Petropoulos, S. Jain, Rancaño, V.J.F., Sahu, J.K.   +11 more
core   +1 more source

Space-division Multiplexing for fiber-wireless communications [PDF]

2017 19th International Conference on Transparent Optical Networks (ICTON), 2017
4 pages, 20th International Conference on Transparent Optical Networks (ICTON), Girona (Spain), 2017.
Ivana Gasulla, Sergi García, David Barrera 0004, Javier Hervas, Salvador Sales 0001   +4 more
openaire   +2 more sources

Optical Networking Beyond WDM

IEEE Photonics Journal, 2012
Wavelength-division multiplexing (WDM) has been the workhorse of data networks, accommodating exponential traffic growth for two decades. Recently, however, progress in WDM capacity research has markedly slowed down as experiments are closely approaching
Peter J. Winzer
doaj   +1 more source

Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing [PDF]

, 2010
Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio ...
Ghassemlooy, Zabih, Ng, Wai Pang, Z. Ghassemlooy, M.A. Jarajreh, Jarajreh, Mutsam Abdel-karim, W.P. Ng   +5 more
core   +1 more source

High Speed Visible Light Communication Using Digital Power Domain Multiplexing of Orthogonal Frequency Division Multiplexed (OFDM) Signals

Photonics, 2021
In order to increase transmission capacity, multiplexing schemes in different physical dimensions, including time, frequency, modulation quadrature, polarization, and space, can be employed.
Wahyu-Hendra Gunawan, Yang Liu, Chi-Wai Chow, Yun-Han Chang, Chien-Hung Yeh   +4 more
doaj   +1 more source

Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]

, 2015
A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya, Chen, Sheng, Kadir, Mohammad Ismat, Hanzo, Lajos   +3 more
core   +1 more source

Space-Division Multiplexing fibers for radiofrequency signal processing [PDF]

, 2020
[EN] Beyond high-capacity transmission, space-division multiplexing fibers can be engineered to provide distributed signal processing for microwave signals.
Sergi Garcia, Ureña-Gisbert, Mario, Ivana Gasulla, Mario Urena, Ureña, Mario, Ruben Guillem, García-Cortijo, Sergi, Gasulla Mestre, Ivana, Guillem, Rubén, Guillem-Cogollos, Rubén, García, Sergi, Gasulla, Ivana   +11 more
core   +1 more source