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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 13 — Jul. 1, 2013
  • pp: 15627–15633

A novel 3D constellation-masked method for physical security in hierarchical OFDMA system

Lijia Zhang, Bo Liu, Xiangjun Xin, and Deming Liu  »View Author Affiliations

Optics Express, Vol. 21, Issue 13, pp. 15627-15633 (2013)

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This paper proposes a novel 3D constellation-masked method to ensure the physical security in hierarchical optical orthogonal frequency division multiplexing access (OFDMA) system. The 3D constellation masking is executed on the two levels of hierarchical modulation and among different OFDM subcarriers, which is realized by the masking vectors. The Lorenz chaotic model is adopted for the generation of masking vectors in the proposed scheme. A 9.85 Gb/s encrypted hierarchical QAM OFDM signal is successfully demonstrated in the experiment. The performance of illegal optical network unit (ONU) with different masking vectors is also investigated. The proposed method is demonstrated to be secure and efficient against the commonly known attacks in the experiment.

© 2013 OSA

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 30, 2013
Revised Manuscript: June 4, 2013
Manuscript Accepted: June 13, 2013
Published: June 21, 2013

Lijia Zhang, Bo Liu, Xiangjun Xin, and Deming Liu, "A novel 3D constellation-masked method for physical security in hierarchical OFDMA system," Opt. Express 21, 15627-15633 (2013)

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