Conference Paper

Achieving Physical Layer Security / Privacy with Self-Wrapped OCDM Transmission

Department of Electrical Engineering, Princeton University, Princeton, NJ 08540 USA
DOI: 10.1109/MILCOM.2007.4455316 Conference: Military Communications Conference, 2007. MILCOM 2007. IEEE
Source: IEEE Xplore


We present a novel transmission system using self-wrapped WHTS OCDM signals to achieve enhanced transmission security. Distributed key is encoded and time-spread to hide under noise in the network. BER of 10-4 is demonstrated experimentally.

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    • "Various authors have studied different aspects relevant to the successful implementation of OCDMA [8], [9] in anticipation of recording tremendous success similar to wireless CDMA. Also of interest has been research into all optical means of signal processing [17], [18] with the aim to further improve OCDMA system performance. It is expected that optical processing can help to overcome the limitation imposed by the bandwidth limited electronic signal processing. "
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    ABSTRACT: A simple in situ method to equalize power among individual wavelength pulses representing 2-D wavelength-hopping time-spreading optical code division multiple access (OCDMA) code originally generated by a fiber Bragg grating-based OCDMA encoder is presented. Experimental data obtained in a field-based multiuser OCDMA testbed shows that applying this method results in system performance enhancements, which was demonstrated by observing the improved bit error rate during the field trials.
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