Constrained Intensity Superposition: A Hardware-Friendly Modulation Method.

Forkel, Gilbert J. M. and Hoeher, Peter (2017) Constrained Intensity Superposition: A Hardware-Friendly Modulation Method. Journal of Lightwave Technology, 36 . p. 1. DOI 10.1109/JLT.2017.2774926.

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One challenge in intensity modulation and direct detection communication systems is the power consumption at the transmitter-side driving circuit. For binary-switched LED-based transmission, boosting the data rate leads to an increased number of switching operations. Consequently, a larger fraction of the available power budget is dissipated in the driver. Hence the performance of communication and possibly illumination is affected by the reduced optical transmit power. The key idea is to lower the driver power consumption by decreasing the number of switching operations necessary for transmitting a fixed amount of data. This is possible by superimposing multiple binary sequences, where the individual sequences are matched to the hardware characteristics of the transmitter. We introduce a method to derive a graph-based representation for superimposing individually constrained binary sequences, and analyze the achievable constrained capacity

Document Type: Article
Keywords: Light sources, Modulation, Optical transmitters, Receivers, Optical switches, Hardware
Research affiliation: Kiel University
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1109/JLT.2017.2774926
ISSN: 0733-8724
Projects: Future Ocean
Date Deposited: 18 Dec 2017 13:54
Last Modified: 23 Sep 2019 20:20

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