Výsledky vyhledávání - "Ali Alaeddine"

Chirping techniques for enhancing the performance of SOA-based UWB over fiber systems: An experimental demonstration

Autor: Ali Al Housseini, Ali Alaeddine, Pascal Morel, Haidar Taki, Ammar Sharaiha, Ali Hamie, Stéphane Azou

Publikováno v: AEÜ-International Journal of Electronics and Communications / Archiv für Elektronik und Übertragungstechnik
AEÜ-International Journal of Electronics and Communications / Archiv für Elektronik und Übertragungstechnik, Elsevier, 2018, 94, pp.221-225. ⟨10.1016/j.aeue.2018.07.008⟩

International audience; A phaser-based processing technique was adopted in an UWB over fiber system employing SOA. The target is to simultaneously reduce the ASE noise impact and nonlinear effects inherent to optical amplification. Experimental resul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c6040c329bf2254e68b80345ec939c2
https://doi.org/10.1016/j.aeue.2018.07.008

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All-Optical Radiofrequency Sampling Mixer Based on a Semiconductor Optical Amplifier Mach–Zehnder Interferometer Using a Standard and a Differential Configuration

Autor: Ali Hamie, Ammar Sharaiha, Ali Alaeddine, Thierry Rampone, Hassan Termos

Publikováno v: Journal of Lightwave Technology
Journal of Lightwave Technology, Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA), 2016, 34 (20), pp.4688-4695. ⟨10.1109/JLT.2016.2603785⟩

International audience; An all-optical sampling based on a semiconductor optical ampliﬁer Mach–Zehnder interferometer is performed. The frequency properties of a sampled signal are exploited to obtain both frequency up-conversion and frequency do

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f90ecb0cdfece500f3deee4b96ca7a
https://doi.org/10.1109/jlt.2016.2603785

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OFDM signal up and down frequency conversions by a sampling method using a SOA-MZI

Autor: Ammar Sharaiha, Ali Alaeddine, Thierry Rampone, Hassan Termos, Ali Hamie

Publikováno v: 2017 29th International Conference on Microelectronics (ICM)
2017 29th International Conference on Microelectronics (ICM), Dec 2017, Beirut, France. ⟨10.1109/ICM.2017.8268822⟩
ICM

Up and down frequency conversions are performed in the range 0.5–39.5 GHz with an Orthogonal Frequency Division Multiplexing data format by using a Semiconductor Optical Amplifier Mach-Zehnder Interferometer. Frequency conversion is achieved by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3b08a7b089916497ac9bf97a874ceb
https://hal.archives-ouvertes.fr/hal-01763863

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On Phaser-Based Processing of Impulse Radio UWB over Fiber Systems Employing SOA

Autor: A. Al Housseini, Haidar Taki, Stéphane Azou, Ali Alaeddine, Ammar Sharaiha, A Hamie

Publikováno v: Optical Fiber Technology
Optical Fiber Technology, Elsevier, 2017, 36, pp.33-40. ⟨10.1016/j.yofte.2017.02.001⟩

International audience; In this study, we adopt a phaser-based processing to enhance the performance of impulse radio over fiber system utilizing SOA. The amplifier has been placed at a distance in the optical link, so as to extend the coverage area

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b85370db167ffd01adfaf384c6df69e4
https://hal.archives-ouvertes.fr/hal-01456315/document

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Simple pre-distortion schemes for improving the power efficiency of SOA-based IR-UWB over fiber systems

Autor: Ammar Sharaiha, A Hamie, Haidar Taki, Ali Alaeddine, Ali Al Housseini, Stéphane Azou

Publikováno v: Optics Communications
Optics Communications, Elsevier, 2017, ⟨10.1016/j.optcom.2016.07.066⟩

International audience; In this paper, we investigate the usage of SOA for reach extension of an impulse radio over fiber system. Operating in the saturated regime translates into strong nonlinearities and spectral distortions, which drops the power

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c36edbd078774261f48ac0564281fce8
https://hal.archives-ouvertes.fr/hal-01353980/document

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A novel ultra high speed and configurable discrete wavelet packet transform architecture

Autor: Fabrice Monteiro, Mouhamad Chehaitly, Ali Hamie, Mohamed Tabaa, Abbas Dandache, Mouenes Fadlallah, Ali Alaeddine

Publikováno v: ICM

This work is dedicated to present a new architecture of Discrete Wavelet Packet Transform (DWPT) implemented in FPGA using a parallel direct FIR () filter. The main target of our architecture is to provide an effective performance trade-off, where it

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc90f2ee9b32809c4309a78cf5ff114b
https://doi.org/10.1109/icm.2016.7847872

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Improving the power efficiency of SOA-based UWB over fiber systems via pulse shape randomization

Autor: Stéphane Azou, Haidar Taki, Ammar Sharaiha, A Hamie, Ali Al Housseini, Ali Alaeddine

Publikováno v: Optical Fiber Technology
Optical Fiber Technology, Elsevier, 2016, 31, pp.161-167. ⟨10.1016/j.yofte.2016.07.006⟩

International audience; A simple pulse shape randomization scheme is considered in this paper for improving the performance of Ultra Wide band (UWB) communication systems using On Off Keying (OOK) or Pulse Position Modulation (PPM) formats. The advan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00334221475593010cc02f602fff59c7
https://hal.archives-ouvertes.fr/hal-01353969/file/TAKI_OFT_20160408(pre-print).pdf

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Pulse Shape Pre-distortion for Improving the Power Efficiency of SOA-based IR-UWB over Fiber Systems

Autor: Haidar Taki, Ammar Sharaiha, A Hamie, Ali Alaeddine, A. Al Housseini, Stéphane Azou

Publikováno v: 23rd IEEE International Conference on Telecommunications (ICT 2016)
23rd IEEE International Conference on Telecommunications (ICT 2016), May 2016, Thessaloniki, Greece. ⟨10.1109/ICT.2016.7500471⟩
ICT

International audience; With the view to achieve a reach extension, the use of a Semiconductor Optical Amplifier (SOA) is investigated here for Impulse Radio Ultra Wide Band (IR-UWB) over fiber systems. Due to the nonlinear effects occurring when the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::711d47d6f262f6084b3e1c344c29e8f6
https://hal.archives-ouvertes.fr/hal-01508675

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