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Listar por palabra clave "Optical fiber communication"

Mostrando ítems 1-12 de 12

Centralized full-duplex seamless photonic mmW fronthaul link based on phase modulation

Bohata, J.; Botella-Campos, Marta; Mora Almerich, José; Ortega Tamarit, Beatriz; Zvanovec, S. (The Optical Society, 2024-06)

[EN] We experimentally demonstrate a photonic full-duplex seamless millimeter wave fronthaul link, based on phase modulation, to address the challenges arising from the increased demands on the mobile fronthaul capacity ...
Combined data detection scheme for zero-padded OFDM signals in MMF links

Medina Sevila, Pau; Almenar Terré, Vicenç; Corral, Juan L. (Institute of Electrical and Electronics Engineers (IEEE), 2015-08-15)

In this letter, we propose a receiver scheme for zero-padded orthogonal frequency division multiplexing (OFDM) that combines low complexity from overlap-and-add equalizer and low error rate provided by successive interference ...
Combined single-mode/multimode fiber link supporting simplified in-building 60-GHz gigabit wireless access

Pham, Tien-Thang; Lebedev, Alexander; Beltrán, Marta; Yu, Xianbin; Llorente Sáez, Roberto; Monroy, Idelfonso Tafur (Elsevier, 2012-07)

In this paper, we propose and experimentally demonstrate a simple, cost-effective hybrid gigabit fiber-wireless system for in-building wireless access. Simplicity and cost-effectiveness are achieved in all parts of the ...
Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

Beltrán Ramírez, Marta; Llorente Sáez, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2011)

[EN] An impulse-radio ultrawideband (UWB) photonic generation technique based on frequency shifting in the remote connectivity fiber in optical access networks is proposed and analyzed in this paper. This technique is based ...
Estudio, diseño, proyecto y ejecución de una red de alimentación y distribución de fibra óptica FTTH en Castellar-Oliveral

Ibáñez del Amo, Elías (Universitat Politècnica de València, 2015-07-21)

Planificación, diseño e instalación de una infraestructura FTTH en una determinada zona de actuación. En primer lugar se analiza el estado actual del mercado de los proveedores de Internet en el hogar, y las ventajas ...
Hardware Architecture of a QAM Receiver for Short-Range Optical Communications

Valls Coquillat, Javier; Torres Carot, Vicente; Pérez Pascual, Mª Asunción; Almenar Terre, Vicenç (Institute of Electrical and Electronics Engineers, 2023-01-15)

[EN] Short-reach optical fiber communications systems aim to achieve high throughput, in the order of tens of Gbps. The implementation of these high-speed systems requires parallel processing, which makes low-complexity ...
Joint Distribution of Polarization-Multiplexed UWB and WiMAX Radio in PON

Perez, Joaquin; Morant, Maria; Llorente, Roberto; Martí Sendra, Javier (Institute of Electrical and Electronics Engineers, 2009)

[EN] In this paper, the feasibility of the joint distribution of ultra-wideband (UWB) and WIMAX wireless using polarization multiplexing as a coexistence technique is proposed and experimentally demonstrated within the ...
Multistandard wireless transmission over SSMF and large-core POF for access and in-home networks

Shi, Yan; Morant Perez, Maria; Okonkwo, Chigo; Llorente Sáez, Roberto; Tangdiongga, Eduward; Koonen, AMJ (Institute of Electrical and Electronics Engineers (IEEE), 2012-05-01)

[EN] An end-to-end transmission of coexisting multistandard radio (LTE, WiMAX, and UWB) signals is demonstrated for the first time with the transmission over a combined access and in-home networks consisting of 25-km SSMF, ...
Performance of Direct-Detection Mode-Group-Division Multiplexing using Fused Fiber Couplers

Gasulla Mestre, Ivana; Kahn, Joseph M. (Institute of Electrical and Electronics Engineers (IEEE), 2015-05-01)

[EN] We present an end-to-end performance evaluation of a mode-group-division multiplexing system that uses direct detection instead of coherent detection, avoiding complex digital signal processing. The system transmits ...
Single- and multiband OFDM photonic wireless links in the 75-110 GHz band employing optical combs

Beltrán Ramírez, Marta; Deng, Lei; Pang, Xiaodan; Zhang, Xu; Arlunno, Valeria; Zhao, Ying; Yu, Xianbin; Llorente Sáez, Roberto; Liu, Deming; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2012-10)

[EN] The photonic generation of electrical orthogonal frequency-division multiplexing (OFDM) modulated wireless signals in the 75110 GHz band is experimentally demonstrated employing in-phase/quadrature electrooptical ...
Transmission Over SSMF at 850 nm: Bimodal Propagation and Equalization

Medina-Sevila, Pau; Almenar Terré, Vicenç; Corral, Juan L. (Institute of Electrical and Electronics Engineers, 2017)

[EN] The combination of 850 nm vertical-cavity surfaceemitting laser (VCSEL) with standard single-mode fiber (SSMF) presents an effective and low-cost interface to increase the reach provided by multi-mode fiber links. At ...
Wavelength-Offset Filtering in Optical OFDM IMDD Systems Using Directly Modulated DFB Lasers

Wei, J. L.; Sánchez Costa, Christian; Hugues-Salas, E.; Spencer, P. S.; Tang, J. M. (Institute of Electrical and Electronics Engineers (IEEE), 2011)

[EN] In optical OFDM (OOFDM) intensity-modulation and direct-detection (IMDD) single-mode fibre transmission systems using directly modulated DFB lasers (DMLs), wavelength-offset optical filtering considerably improves ...