D
Danish Rafique
Researcher at ADVA Optical Networking
Publications - 113
Citations - 2544
Danish Rafique is an academic researcher from ADVA Optical Networking. The author has contributed to research in topics: Quadrature amplitude modulation & Wavelength-division multiplexing. The author has an hindex of 24, co-authored 113 publications receiving 2205 citations. Previous affiliations of Danish Rafique include Polytechnic University of Catalonia & University College Cork.
Papers
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Journal ArticleDOI
Reduced Complexity Digital Back-Propagation Methods for Optical Communication Systems
Antonio Napoli,Zied Maalej,Vincent A. J. M. Sleiffer,Maxim Kuschnerov,Danish Rafique,Erik Timmers,Bernhard Spinnler,Talha Rahman,L.D. Coelho,Norbert Hanik +9 more
TL;DR: Two proposals to reduce the hardware complexity required by digital back-propagation are discussed, one confirms and extends published results for non-dispersion managed link, while the second introduces a novel method applicable to dispersion managed links, showing complexity reductions in the order of 50% and up to 85%, respectively.
Journal ArticleDOI
Digital back-propagation for spectrally efficient WDM 112 Gbit/s PM m-ary QAM transmission.
TL;DR: It is demonstrated that even under strong nonlinear distortion the transmission reach only reduces by a factor of ~2.5 for a 2 unit increase in capacity when full band DBP is employed, in proportion to the required back-to-back OSNR.
Journal ArticleDOI
On the Mitigation of Optical Filtering Penalties Originating From ROADM Cascade
Talha Rahman,Antonio Napoli,Danish Rafique,Bernhard Spinnler,Maxim Kuschnerov,Iveth Lobato,Benoit Clouet,Marc Bohn,Chigo Okonkwo,Huug de Waardt +9 more
TL;DR: In this article, the authors proposed and analyzed possible configurations for the mitigation of these penalties in optical domain using optical wave shaper (WS), including one WS in every ROADM node allowing transmission of 28 and 32 GBd signals, which are QPSK, 8-QAM, or 16QAM modulated, through a cascade of 32 and 14 WSS filters.
Journal ArticleDOI
Digital Preemphasis in Optical Communication Systems: On the DAC Requirements for Terabit Transmission Applications
TL;DR: A simple digital preemphasis (DPE) algorithm to compensate for DAC-induced signal distortions is proposed, and performance improvements are established across various DAC hardware requirements and channel baud rates, for m-state quadrature amplitude modulation (QAM) formats.
Journal ArticleDOI
Cognitive Assurance Architecture for Optical Network Fault Management
TL;DR: A cognitive fault detection architecture for intelligent network assurance that both detects and identifies significant faults, and outperforms conventional fixed threshold-triggered operations, both in terms of detection accuracy and proactive reaction time is proposed.