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Listar por palabra clave "Millimeter-wave"

Mostrando ítems 1-12 de 12

42.13 Gbit/s 16QAM-OFDM photonics-wireless transmission in 75-110 GHz band

Deng, Lei; Liu, Deming; Pang, Xiaodan; Zhang, Xu; Arlunno, Valeria; Zhao, Ying; Caballero, Antonio; Dogadaev, Anton; Yu, Xianbin; Monroy, Ildefonso Tafur; Beltrán, Marta; Llorente Sáez, Roberto (EMW Publishing, 2012)

[EN] We present a simple architecture for realizing high capacity W-band (75-110 GHz) photonics-wireless system. 42.13 Gbit/s 16QAM-OFDM optical baseband signal is obtained in a seamless 15 GHz spectral bandwidth by using ...
60-GHz Single-Layer Slot-Array Antenna fed by Groove Gap Waveguide

Ferrando-Rocher, Miguel; Valero-Nogueira, Alejandro; Herranz Herruzo, José Ignacio; Teniente, Jorge (Institute of Electrical and Electronics Engineers, 2019-05)

[EN] A V-band single-layer low-loss slot-array antenna is presented in this letter. Radiating slots are backed by coaxial cavities, which are fed through a groove gap waveguide E-plane corporate feed network. Cavity ...
Centralized Optical-Frequency-Comb-Based RF Carrier Generator for DWDM Fiber-Wireless Access Systems

Pang, Xiaodan; Beltrán, Marta; Sánchez Vílchez, José Manuel; Pellicer, Eloy; Olmos, J. J. Vegas; Llorente Sáez, Roberto; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2014-01-01)

[EN] In this paper, we report on a gigabit capacity fiber-wireless system that enables smooth integration between high-speed wireless networks and dense wavelength-division-multiplexing (DWDM) access networks. By employing ...
Millimeter-Wave Channel Measurements and Path Loss Characterization in a Typical Indoor Office Environment

Rubio Arjona, Lorenzo; Rodrigo Peñarrocha, Vicent Miquel; Cabedo Fabres, Marta; Bernardo-Clemente, Bernardo; Reig, Juan; Fernández, Herman; Pérez, Jesús R.; Torres, Rafael P.; Valle, Luis; Fernández, Óscar (MDPI AG, 2023-02)

[EN] In this paper, a path loss characterization at millimeter-wave (mmWave) frequencies is performed in a typical indoor office environment. Path loss results were derived from propagation channel measurements collected ...
Millimeter-wave Human Blockage Model Enhancements for Directional Antennas and Multiple Blockers

Prado-Alvarez, Danaisy; Inca-Sánchez, Saúl Adrián; Martín-Sacristán, David; Monserrat del Río, Jose Francisco (Institute of Electrical and Electronics Engineers, 2021-09)

[EN] The Third Generation Partnership Project (3GPP) has defined a blockage model as an add-on feature to the channel model used in its evaluations of the physical layer in the 0.5-100 GHz frequency range. This letter ...
New half-mode groove gap waveguide for cost-effective antenna arrays in millimeter-wave applications

Pérez Guimerá, Alejandro (Universitat Politècnica de València, 2022-10-15)

[ES] El interés actual por la banda de ondas milimétricas ha dado lugar a nuevos retos en el diseño de componentes. Las soluciones tecnológicas más utilizadas son las guías de onda huecas y las líneas de transmisión planas. ...
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 ...
Performance evaluation of analog beamforming with hardware impairments for mmW massive MIMO communication in an urban scenario

Giménez Colás, Sonia; Roger Varea, Sandra; Baracca, Paolo; Martín-Sacristán, David; Monserrat del Río, José Francisco; Braun, Volker; Halbauer, Hardy (MDPI, 2016-10)

[EN] The use of massive multiple-input multiple-output (MIMO) techniques for communication at millimeter-Wave (mmW) frequency bands has become a key enabler to meet the data rate demands of the upcoming fifth generation ...
Software-Defined architecture for QoS-Aware IoT deployments in 5G systems

Tello-Oquendo, Luis; Lin, Shih-Chun; Akyildiz, Ian F.; Pla, Vicent (Elsevier, 2019-10)

[EN] Internet of Things (IoT), a ubiquitous network of interconnected objects, harvests information from the environments, interacts with the physical world, and uses the existing Internet infrastructure to provide services ...
Test-Fixture for Suspended-Strip Gap-Waveguide Technology on Ka-Band

Gahete Arias, Carlos; Baquero Escudero, Mariano; Valero-Nogueira, Alejandro; Vila Jiménez, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)

This letter presents a Test-Fixture for a Suspended-Strip Gap-Waveguide technology that provides a fast measurement system for the prototyping stage. For this purpose, a transition from standard rectangular waveguide to ...
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, ...
Wideband QAM-over-SMF/turbulent FSO downlinks in a PON architecture for ubiquitous connectivity

Nguyen, Dong-Nhat; Vallejo-Castro, Luis; Bohata, Jan; Ortega Tamarit, Beatriz; Ghassemlooy, Zabih; Zvanovec, Stanislav (Elsevier, 2020-11-15)

[EN] We propose and investigate for the first time a seamless millimeter-wave (mmW) radio-over-fiber (RoF) and radio-over-free-space optics (FSO)-based downlink for use in a passive optical network architecture using 4-, ...