Rate-Adaptive Coded Modulation for Fiber-Optic Communications

Rate-adaptive optical transceivers can play an important role in exploiting the available resources in dynamic optical networks, in which different links yield different signal qualities. We study rate-adaptive joint coding and modulation, often called coded modulation (CM), addressing non-dispersio...

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Bibliographic Details
Published in:Journal of lightwave technology Vol. 32; no. 2; pp. 333 - 343
Main Authors: Beygi, Lotfollah, Agrell, Erik, Kahn, Joseph M., Karlsson, Magnus
Format: Journal Article
Language:English
Published: New York, NY IEEE 15.01.2014
Institute of Electrical and Electronics Engineers
Subjects:
Applied sciences
Circuit properties
Complexity theory
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber-optic communications
four-dimensional set partitioning
Information, signal and communications theory
Integrated optics. Optical fibers and wave guides
Labeling
Modulation
Modulation, demodulation
non-dispersion managed links
nonlinear channel model
Optical and optoelectronic circuits
Optical fiber communications
Optical telecommunications
Optoelectronic devices
Parity check codes
Probabilistic logic
probabilistic shaping
rate-adaptive coded modulation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal and communications theory
Signal to noise ratio
Telecommunications
Telecommunications and information theory
Performance evaluation
Integrated optics
Parameter estimation
four-dimensional set partitioning
Fiber-optic communications
Digital processing
Adaptive method
Addressing
nonlinear channel model
Fiber optics
Optical fiber network
Channel estimation
Optical receiver
Traffic control
Parity check codes
Optical fiber communication
Electronic dispersion compensation
Adaptive modulation
Optical fiber
Probabilistic approach
Flow rate regulation
Teletraffic
Electrooptical device
non-dispersion managed links
Optical transmitters
Adaptive coding
Integrated circuit
Signal processing
probabilistic shaping
Optical dispersion compensation
Long distance transmission
Digital signal processor
rate-adaptive coded modulation
ISSN:0733-8724, 1558-2213, 1558-2213
Online Access:Get full text
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Description
Summary:Rate-adaptive optical transceivers can play an important role in exploiting the available resources in dynamic optical networks, in which different links yield different signal qualities. We study rate-adaptive joint coding and modulation, often called coded modulation (CM), addressing non-dispersion-managed (non-DM) links, exploiting recent advances in channel modeling of these links. We introduce a four-dimensional CM scheme, which shows a better tradeoff between digital signal processing complexity and transparent reach than existing methods. We construct a rate-adaptive CM scheme combining a single low-density parity-check code with a family of three signal constellations and using probabilistic signal shaping. We evaluate the performance of the proposed CM scheme for single-channel transmission through long-haul non-DM fiber-optic systems with electronic chromatic-dispersion compensation. The numerical results demonstrate improvement of spectral efficiency over a wide range of transparent reaches, an improvement over 1 dB compared to existing methods.
ISSN:0733-8724
1558-2213
1558-2213
DOI:10.1109/JLT.2013.2285672