Search Results - "Laurencio, P."

Impact of the Combined Effect of RIN and Intermodulation Distortion on OSSB/SCM Systems by Laurencio, P., Simoes, S.O., Medeiros, M.C.R.

“…This paper investigates both theoretically and numerically the performance limitations due to the combined effect of relative intensity noise (RIN) and…”
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Cost effective Hybrid Dynamic Radio Access supported by Radio over Fiber by Medeiros, M. C. R., Costa, R., Silva, H. A., Laurencio, P., Monteiro, P. P.

“…The Hybrid Dynamic Radio Access supported by Radio over Fiber (Hydra-RoF) project addresses an heterogeneous scenario where small cells are used to increase…”
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Dispersion Robustness of Millimeter Waves Generated by Up-Conversion Strategies by Laurêncio, P., Vargues, H., Fortes, I., Avó, R., Medeiros, M. C. R.

“…The performance degradation caused by transmission along dispersive single-mode fibers of optically generated millimeter-wave signals using up-conversion is…”
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Dynamic range of optical links employing optical single side-band modulation by Laurencio, P., Medeiros, M.C.R.

“…The dynamic range of optical single side-band modulated systems is analyzed for both small-signal and large-signal regimes. Under small-signal conditions the…”
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Relative Intensity Noise in Optical Single Side Band Systems with Multiple In-Line Amplifiers: Analysis and Validation by Laurêncio, P. R., Medeiros, M. C. R.

“…This article analyzes and validates through simulation the influence of fiber nonlinearity, dispersion, and loss on the Relative Noise Intensity (RIN) spectrum…”
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Semiconductor Laser Models Suitability to Assess Laser Noise Effects on Optically Generated Millimeter Wave Signals by Oliveira, B. M., Almeida, P., Laurencio, P., Monteiro, P. M., Medeiros, M. C. R.

“…Microwave photonic techniques, such as optical heterodyning of two correlated laser sources upon photo-detection, have been proposed to generate high purity…”
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Optical frequency tripling with improved suppression and sideband selection by Thakur, M. P., Laurencio, P., Medeiros, M. C. R., Mitchell, J. E.

“…A novel, optical dispersion tolerant millimetre-wave radio-over-fibre system using optical frequency tripling technique with enhanced and selectable sideband…”
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Optically Generated Millimeter Wave Reflectometry Signals: Approach Followed in the RETIOT Project by Medeiros, M. C. R., Laurencio, P., Monteiro, P. M.

“…Microwave photonic techniques, such as optical heterodyning of two correlated laser sources upon photo-detection, have been proposed to generate high purity…”
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Comparative study of optical up-conversion schemes by Avo, R., Laurencio, P., Medeiros, M. C. R.

“…Optical mm-wave signal generation and up-conversion using external modulation of an optical carrier by means of LiNbO 3 Mach-Zehnder (MZ) modulators have…”
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Transmission performance of 60 GHz signals generated by OSSB upconversion by Laurencio, P., Fortes, I., Guerreiro, M., Medeiros, M. C. R.

“…Optical millimetter-wave generation using up-conversion is considered a cost-effective solution for Radio over Fiber (RoF) systems. In this paper we focus on…”
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60 GHz radio-over-fiber transmission impairments for broadband wireless signals by Avó, R, Laurêncio, P, Medeiros, M C R

“…The recent advances reported in low cost production components and circuits operating at 60 GHz combined with the increasing consumer demands for wireless high…”
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Fiber wireless-optical transceiver architectures for 60 GHz LANs by Medeiros, M. C. R., Almeida, P., Oliveira, B. M., Laurencio, P., Monteiro, P. M.

“…The availability of low cost commercially available components operating at 60 GHz, mainly driven by the approval of the consumer oriented IEEE 802.11ad and…”
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Intermodulation Distortion in OSSB/SCM Systems with Partially Suppressed Optical Carrier by Laurencio, P., Medeiros, M.C.R.

“…This paper investigates the performance limitations due to intermodulation distortion of broadband optical single side band/subcarrier multiplexing (OSSB/SCM)…”
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W-Band OFDM-RoF system employing optical up-conversion by Lopes, V., Laurencio, P., Medeiros, M. C. R.

“…In this paper, we discuss a specific implementation of W-Band RoF system employing optical up-conversion strategies and direct detection. The approach involves…”
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Radio over fiber access network architecture employing reflective semiconductor optical amplifiers by Medeiros, M.C.R., Avo, R., Laurencio, P., Correia, N.S., Barradas, A., da Silva, H.J.A., Darwazeh, I., Mitchell, J.E., Monteiro, P.M.N.

“…This paper introduces the RoFnet-Reconfigurable Radio over Fiber network, which is a project supported by the Portuguese Foundation for Science and Technology…”
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Simulation of Intermodulation Distortion in Fiber-Radio Links Employing OSSB by Laurencio, P., Simoes, S.O., Medeiros, M.C.R.

“…This paper investigates through simulation the impact of the optical carrier suppression on the intermodulation distortion of subcarrier multiplexed systems…”
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Convergence of optical and millimeter-wave broadband wireless access networks by Medeiros, M.C.R., Avo, R., Laurencio, P., Darwazeh, I., Mitchell, J.E., Monteiro, P.M.N., da Silva, H.J.A.

“…This paper discusses hybrid fiber optic access network architectures combining baseband wireline and mm-wave channels. We focus on mm-wave radio over fiber…”
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Delivery of broadband 60 GHz signals over FTTH networks by Bento, D., Avo, R., Lopes, V., Laurencio, P., Medeiros, M. C. R.

“…Wireless broadband technologies operating in the 60 GHz range are currently reaching a mature state. Devices with wireless high definition multimedia…”
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Performance comparison between single and dual-arm MZM in 60 GHz OFDM-RoF system with OSSB modulation by Bento, D., Medeiros, M. C. R., Laurencio, P.

“…Radio-over-fiber (RoF) systems which act as backbone networks are very promising means of reducing overall costs of 60 GHz WPANs, as well leading to networks…”
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Transmission limitations of WiMax over fibre transmission employing optical up-conversion schemes by Medeiros, M. C. R., Thakur, M. P., Laurencio, P., Mitchell, J. E.

“…WiMax is a promising technology for the delivery of last mile wireless broadband access which when combined with fibre access networks can provide cost…”
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