M
Mehdi Torbatian
Researcher at Infinera
Publications - 32
Citations - 342
Mehdi Torbatian is an academic researcher from Infinera. The author has contributed to research in topics: Asynchronous communication & Multiplexing. The author has an hindex of 6, co-authored 28 publications receiving 187 citations. Previous affiliations of Mehdi Torbatian include University of Waterloo & Iran University of Science and Technology.
Papers
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Journal ArticleDOI
800G DSP ASIC Design Using Probabilistic Shaping and Digital Sub-Carrier Multiplexing
Han Sun,Mehdi Torbatian,Mehdi Karimi,Robert Maher,Sandy Thomson,Mohsen Nader Tehrani,Yuliang Gao,Ales Kumpera,George Soliman,Aditya Kakkar,Mohammad Osman,Ziad A. El-Sahn,Clayton Doggart,Weikun Hou,Shailesh Sutarwala,Yuejian Wu,Mohammad Reza Chitgarha,Vikrant Lal,Huan-Shang Tsai,Scott Corzine,Jiaming Zhang,J. Osenbach,S. Buggaveeti,Zulfikar Morbi,Miguel Iglesias Olmedo,I. Leung,Xian Xu,Parmijit Samra,Vince Dominic,Steve Sanders,Mehrdad Ziari,Antonio Napoli,Bernhard Spinnler,Kuang-Tsan Wu,Parthiban Kandappan +34 more
TL;DR: This manuscript discusses the motivations for jointly utilizing transmission techniques such as probabilistic shaping and digital sub-carrier multiplexing in digital coherent optical transmissions systems and describes the key-building blocks of modern high-speed DSP-based transponders working at up to 800G per wave.
Journal ArticleDOI
On the design of delay-tolerant distributed space-time codes with minimum length
TL;DR: A novel algebraic structure is proposed and shown to achieve full diversity for arbitrary number of relays, arbitrary input alphabets, and arbitrary delay profiles among the relays to build distributed space-time codes for asynchronous relays.
Proceedings ArticleDOI
A Novel Nonlinearity Tolerant Super-Gaussian Distribution for Probabilistically Shaped Modulation
TL;DR: A novel nonlinear tolerant super-Gaussian distribution has been proposed which outperforms the Maxwell-Boltzmann distribution and the simulation and experimental results both show a significant improvement.
Patent
Distribution matching for probabilistic constellation shaping with an arbitrary input/output alphabet
TL;DR: In this article, an encoder circuit is provided at a transmit side of an optical fiber link that maps an input sequence of bits of fixed length k a sequence of symbols of a codeword of length n, such that the symbols of the codewords define a predetermined transmission probability distribution.
Journal ArticleDOI
Performance Oriented DSP for Flexible Long Haul Coherent Transmission
Mehdi Torbatian,Domanic Lavery,Mohamed Fairis Osman,Demin Yao,David Miller,Yuliang Gao,Aditya Kakkar,Ziad Elsahn,Clayton Doggart,Ahmed E. Morra,Nashat Abughalieh,Shijun Yang,Xiang Chen,Robert Maher,Han Sun,Kuang-Tsan Wu,Parthiban Kandappan +16 more
TL;DR: In this article , the authors discuss the digital signal processing techniques that are used in the design of high performance coherent modems to compensate for adverse channel effects such as fiber impairments and optoelectronic device non-idealities.