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In this paper, we propose a key space enhanced chaos-based encryption scheme with no requirement of redundant sideband information in an orthogonal frequency division multiplexing passive optical network (OFDM-PON). For the first time, a simple 1-D chaotic logistic map is employed to scramble the chaotic subcarrier allocation both in time/frequency domain and logical operation, which provides a huge...
Physical layer security is of key interest for secure passive optical networks (PONs). We propose a hybrid chaotic confusion and diffusion (HCCD)-based encryption method for physical layer security enhancement in optical orthogonal frequency division multiplexed PONs (OFDM-PONs). Here, the real (I) and imaginary (Q) parts of OFDM symbols are separately scrambled by using different permutations before...
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