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Listar por palabra clave "Radio-over-fiber"

Mostrando ítems 1-13 de 13

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 ...
Directly-Modulated 1310 nm Laser TOSA Developed for Seamless Millimeter Wave Radio Over Fiber Transmission

Komanec, Matej; Halmo, Leos; Adler, Viktor; Bohata, Jan; Botella-Campos, Marta; Zverina, Jakub; Zvanovec, Stanislav (Institute of Electrical and Electronics Engineers, 2023-06-21)

[EN] We present for the first time a directly-modulated high-frequency laser transmitter optical subassembly (TOSA) in a commercially-available TO-can packaging working in the 1310 nm band capable of digital transmission ...
Dual-band hybrid fiber-wireless delivery system for high-speed data communications in CRAN based on polarization multiplexing with switching capabilities

Zoireff, Gustavo; Caso, P. A. Costanzo; Vidal Rodriguez, Borja; Rossini, L. A. Bulus (Elsevier, 2024-11-01)

[EN] This work presents a Radio-over-Fiber architecture for Cloud Radio Access Networks (CRAN) based on polarization division multiplexing for delivering up-converted high-speed data signals using a single laserphotodetector ...
Experimental Demonstration of mm-Wave 5G NR Photonic Beamforming Based on ORRs and Multicore Fiber

Morant, Maria; Trinidad, Ailee; Tangdiongga, Eduward; Koonen, Ton; Llorente, Roberto (Institute of Electrical and Electronics Engineers, 2019-07)

[EN] A photonic beamformer system designed for nextgeneration 5G new radio (5G NR) operating in the millimeter waveband is proposed and demonstrated experimentally, including its performance characterization. The photonic ...
Experimental Evaluation of All-Optical Up- and Down-Conversion of 3GPP 5G NR Signals Using an Optomechanical Crystal Cavity Frequency Comb

Fito-Estevan, Vicente; Ortiz-Fernández, Raúl; Morant, Maria; Mercadé, Laura; Llorente, Roberto; Martínez, Alejandro (Institute of Electrical and Electronics Engineers, 2024-10-01)

[EN] Optomechanical crystal cavities (OMCCs) allow the interaction between localized optical and mechanical modes through the radiation-pressure force. Driving such cavities with blue-detuned lasers relative to the optical ...
Integración de sistemas WiMedia UWB en redes FTTH basadas en fibras de alta flexibilidad

Medina Rodríguez, Natán (Universitat Politècnica de València, 2011-09-08)

En este trabajo se investiga la integración de todas las bandas que comprenden los sistemas de banda ultra ancha (UWB, ultra wide band) en redes de acceso óptico de fibra-hasta-el-hogar (FTTH, fiber to the home) compuestas ...
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 ...
Multi-beamforming provided by dual-wavelength true time delay PIC and multicore fiber

Morant, Maria; Trinidad, Ailee; Tangdiongga, Eduward; Koonen, Ton; Llorente, Roberto (Institute of Electrical and Electronics Engineers, 2020-10-01)

[EN] This paper presents a multi-beamformer based on a dual-wavelength photonic integrated circuit (PIC) and multicore fiber (MCF) capable of providing independent delay tuning to two separate beams modulated on different ...
Next-Generation Optical Fronthaul Systems Using Multicore Fiber Media

Macho-Ortiz, Andrés; Morant Pérez, María; Llorente Sáez, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2016-10-15)

This paper proposes and investigates the use of multicore fiber (MCF) media performing space-division multiplexed transmission for next-generation optical fronthaul systems. We report the experimental demonstration of ...
On N-PAM and M-QAM implementation within the hybrid RoF-FSO-PON system

Nguyen, Dong-Nhat; Zvanovec, Stanislav; Bohata, Jan; Ortega Tamarit, Beatriz; Vallejo-Castro, Luis; Ghassemlooy, Zabih (IEEE, 2020-11-25)

[EN] This paper investigates an optical transmission architecture of a passive optical network (PON), which is compatible with the millimeter-wave radio-over-fiber and free-space optics systems (RoF-FSO) under weak-to-strong ...
On the Use of a Directly Modulated Laser in a Phase Modulated-Assisted mmW Signal Generation and Transmission Link

Botella-Campos, Marta; Mora Almerich, José; Ortega Tamarit, Beatriz (Institute of Electrical and Electronics Engineers, 2023-12-15)

[EN] We propose and experimentally demonstrate the use of a directly modulated laser (DML) in an optical phase modulated (PM)-assisted millimeter-wave (mmW) signal generation system. A comprehensive analytical model is ...
Performance Analysis of Carrier-Aggregated Multi-Antenna 4×4 MIMO LTE-A Fronthaul by Spatial Multiplexing on Multicore Fiber

Morant, Maria; Llorente, Roberto (Institute of Electrical and Electronics Engineers, 2018)

[EN] In this paper,we experimentally propose and evaluate the performance of multiantenna LTE-Advanced (LTE-A) systems implementing multiple-input-multiple-output (MIMO) space división multiplexing on multicore fiber, ...
Transmission of 2 bits/symbol over RoF and RoFSO links with different architectures for ubiquitous coverage

Nguyen, Dong-Nhat; Zvanovec, Stanislav; Vallejo-Castro, Luis; Ortega Tamarit, Beatriz; Bohata, Jan; Ghassemlooy, Zabih (IEEE, 2020-07-22)

[EN] This paper investigates integrated radio-over-fiber and radio-over-free-space optic links in a passive optical network architecture for ubiquitous wireless coverage. Two optical millimeter-wave generation techniques, ...