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2014 28th International Conference on Advanced Information Networking and Applications Workshops (WAINA) (2014)
BC, Canada
May 13, 2014 to May 16, 2014
ISBN: 978-1-4799-2652-7
pp: 275-280
ABSTRACT
Optical code-division multiple-access (OCDMA) has been considered as a good candidate to provide optical layer security. In this paper, an enhanced OCDMA network security mechanism with pseudo-noise (PN) type of M-sequence coding switching is presented to against eavesdropping. Signature code unique to each OCDMA network user is reconfigured in accordance with the register state of a controlling electrical shift register. Examples of signature reconfiguration following state switching of controlling shift register for both network user and eavesdropper are numerically illustrated. It is shown that, by dynamically changing PN state of shift register to reconfigure user signature sequence, eavesdropper will encounter difficulty on decoding correct data sequences. The proposed scheme hence raises a high error probability for eavesdroppers. Accordingly, the degree of the proposed optical network confidentiality can be largely improved.
INDEX TERMS
maximal-length sequence (M-sequence) code, Arrayed-waveguide gratings (AWGs), optical code-division multiple-access (OCDMA) network, spectral-amplitude coding (SAC)
CITATION

J. Huang, S. Meng, K. Chen and Y. Lin, "Securing Optical Network Access with Post-switching Coding Scheme of Signatures Reconfiguration," 2014 28th International Conference on Advanced Information Networking and Applications Workshops (WAINA), BC, Canada, 2014, pp. 275-280.
doi:10.1109/WAINA.2014.75
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