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.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/615106 |
| Date | 02 1900 |
| Creators | Sun, Xiaole, Djordjevic, Ivan B. |
| Contributors | Univ Arizona, Dept Elect & Comp Engn, Univ Arizona, Coll Opt Sci |
| Publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | © 2016 IEEE. |
| Relation | http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7386572 |
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