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Listar por palabra clave "Orthogonal frequency division multiplexing"

Mostrando ítems 1-10 de 10

25-Gb/s OFDM 60-GHz Radio Over Fiber System Based on a Gain Switched Laser

Martin, Eamonn P.; Shao, Tong; Vujicic, Vidak; Anandarajah, Prince M.; Browning, Colm; Llorente, Roberto; Barry, Liam P. (Institute of Electrical and Electronics Engineers (IEEE), 2015-04-15)

[EN] A 25-Gb/s OFDM 60-GHz radio over fiber (RoF) transmission system employing a gain switched DFB laser for millimeter-wave generation is demonstrated. Transmission performance below the 7% FEC limit is achieved over 50 ...
Architectures and Novel Functionalities for Optical Access OFDM Networks "Arquitecturas y Nuevas Funcionalidades para Redes OFDM de Acceso Óptico"

Morant Perez, Maria (Universitat Politècnica de València, 2012-03-20)

En los últimos años ha habido un gran aumento en el despliegue de redes de acceso ópticas de fibra hasta el hogar (FTTH, del inglés fibre-to-the home). FTTH es una solución flexible, una tecnología de acceso de futuro que ...
Fiber Wireless Transmission of 8.3-Gb/s/ch QPSK-OFDM Signals in 75-110-GHz Band

Deng, Lei; Beltrán Ramírez, Marta; Pang, Xiaodan; Zhang, Xu; Arlunno, Valeria; Zhao, Ying; Caballero, Antonio; Dogadaev, Anton; Yu, Xianbin; Llorente Sáez, Roberto; Liu, Deming; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2012-03)

[EN] In this letter, we present a scalable high-speed W-band (75-110-GHz) fiber wireless communication system. By using an optical frequency comb generator, three-channel 8.3-Gb/s/ch optical orthogonal frequency-division ...
FPGA implementation of an OFDM-based WLAN receiver

Canet Subiela, Mª José; Valls Coquillat, Javier; Almenar Terré, Vicenç; Marín-Roig Ramón, José (Elsevier, 2012-05)

This paper deals with the design and implementation on FPGA of a receiver for OFDM-based WLAN. The circuit is particularized for IEEE 802.11a/g standards. The system includes frame detection, time and frequency synchronization, ...
Performance Comparison of OFDM-UWB Radio Signals Distribution in Long-Reach PONs Using Mach-Zehnder and Linearized Modulators

Alves, Tiago; Morant, Maria; Cartaxo, Adolfo; Llorente, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)

[EN] The performance of orthogonal frequency division multiplexing ultra wideband (UWB) radio signals distribution in long-reach passive optical networks (LR-PONs) using conventional chirp-less Mach Zehnder (MZ) and ...
Performance of a 60-GHz DCM-OFDM and BPSK-Impulse ultra-wideband system with radio-over-fiber and wireless transmission employing a directly-modulated VCSEL

Beltrán, Marta; Jensen, Jesper Bevensee; Yu, Xianbin; Llorente, Roberto; Rodes, Roberto; Ortsiefer, Markus; Neumeyr, Christian; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)

[EN] The performance of radio-over-fiber optical transmission employing vertical-cavity surface-emitting lasers (VCSELs), and further wireless transmission, of the two major ultra-wideband (UWB) implementations is reported ...
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 of OFDM wired-wireless quintuple-play services along WDM LR-PONs using centralized broadband impairment compensation

Alves, T.M.F.; Morant Pérez, María; Cartaxo, A.V.T.; Llorente Sáez, Roberto (Optical Society of America, 2012)

[EN] The simultaneous transmission of four orthogonal frequencydivision multiplexing (OFDM)-based signals used to provide quintuple-play services along wavelength division multiplexing (WDM) long-reach passive optical ...
Transmit Diversity Scheme for OFDM Systems Using the Odd DFT

Almenar Terré, Vicenç; Girona, Amparo; Flores Asenjo, Santiago J.; Marín-Roig Ramón, José (Institute of Electronics, Information and Communication Engineers, 2011)

[EN] A new transmission scheme for OFDM systems that uses the odd discrete Fourier transform to provide frequency diversity gain is proposed. Odd DFT allows the transmission of data subcarriers in frequencies that are ...
VCSEL-based, CWDM - PON systems using reflective technology for bi-directional multiplay service provision

Terence Quinlan; Sandra Dudley; Morant Pérez, María; Llorente Sáez, Roberto; Stuart Walker (Optical Society of America, 2012)

[EN] Orthogonal frequency division multiplexing based on radio-overfiber schemes allows the direct use of multiple, native format wireless platforms. In combination with standard baseband provision such as Gigabit Ethernet, ...