Constellation-masked secure communication technique for OFDM-PON.
Open Access
- 19 October 2012
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 20 (22), 25161-25168
- https://doi.org/10.1364/oe.20.025161
Abstract
This paper proposes a novel secure communication technique using constellation masking for applications in orthogonal frequency division multiplexing passive optical network (OFDM-PON). The constellation masking is applied both on each subcarrier and among different subcarriers. The Arnold mapping is utilized as the parameter function for the mask factors. A interleave length is employed to provide a scalable masking granularity for different ONUs. A 15.54 Gb/s constellation-masked 32QAM-OFDM signal has been successfully transmitted over 25-km single mode fiber in the experiment. Experimental results show that the proposed scheme can effectively protect the system from illegal ONU without wasting the bandwidth. The constellation-masked technique suggests an effective solution for the physical secure communication in future OFDM access network.This publication has 13 references indexed in Scilit:
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