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Physical-Layer Security in Orbital Angular Momentum Multiplexing Free-Space Optical Communications

The physical-layer security of a line-of-sight (LOS) free-space optical (FSO) link using orbital angular momentum (OAM) multiplexing is studied. We discuss the effect of atmospheric turbulence to OAM-multiplexed FSO channels. We numerically simulate the propagation of OAM-multiplexed beam and study the secrecy capacity. We show that, under certain conditions, the OAM multiplexing technique provides higher security over a single-mode transmission channel in terms of the total secrecy capacity and the probability of achieving a secure communication. We also study the power cost effect at the transmitter side for both fixed system power and equal channel power scenarios.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/615106
Date02 1900
CreatorsSun, Xiaole, Djordjevic, Ivan B.
ContributorsUniv Arizona, Dept Elect & Comp Engn, Univ Arizona, Coll Opt Sci
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
Rights© 2016 IEEE.
Relationhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7386572

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