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Improved Lower Boun...
Improved Lower Bounds on Mutual Information Accounting for Nonlinear Signal--Noise Interaction
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- Irukulapati, Naga Vishnukanth, 1987 (författare)
- Ericsson AB, Sweden,Telefonaktiebolaget L M Ericsson,Ericsson,Chalmers tekniska högskola,Chalmers University of Technology
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- Secondini, Marco (författare)
- TeCIP Institute, Italy,Scuola Superiore Sant'Anna di studi universitari e di perfezionamento (SSSUP),Sant'Anna School of Advanced Studies (SSSUP)
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- Agrell, Erik, 1965 (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Johannisson, Pontus (författare)
- RISE,Acreo,RISE Research Institutes of Sweden
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- Wymeersch, Henk, 1976 (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: Journal of Lightwave Technology. - 0733-8724 .- 1558-2213. ; 36:22, s. 5152-5159
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- In fiber-optic communications, evaluation of mutual information (MI) is still an open issue due to the unavailability of an exact and mathematically tractable channel model. Traditionally, lower bounds on MI are computed by approximating the (original) channel with an auxiliary forward channel. In this paper, lower bounds are computed using an auxiliary backward channel, which has not been previously considered in the context of fiber-optic communications. Distributions obtained through two variations of the stochastic digital backpropagation (SDBP) algorithm are used as auxiliary backward channels and these bounds are compared with bounds obtained through the conventional digital backpropagation (DBP). Through simulations, higher information rates were achieved with SDBP, which can be explained by the ability of SDBP to account for nonlinear signal--noise interactions
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- Achievable information rate
- auxiliary channel
- fiber-optical communications
- mismatched decoding
- nonlinear compensation
- stochastic digital backpropagation
- Backpropagation algorithms
- Fiber optics
- Nonlinear optics
- Signal noise measurement
- Stochastic systems
- Digital backpropagation
- Fiber optical communications
- Non-linear compensations
- Optical fiber communication
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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