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To enhance confidentiality and reduce the number of arrayed-waveguide grating (AWG) routers, a dynamic scrambling scheme is proposed in which cyclic and free spectral range (FSR) properties of AWG routers are employed to use a maximal-length sequence (M-sequence) code as the signature address code. In this paper, a changing codeword mechanism is presented in which a flexible dynamic scrambling algorithm...
In order to overcome vulnerability to eavesdropping of on-off-keying based OCDMA scheme, a new multi-code keying reconfiguration is presented to enhance confidentiality over two dimensional time-spreading and wavelength-hopping (2D TS/WH) optical code division multiple access (OCDMA) schemes. The time-shifted carrier-hopping prime codes (CHPCs) are proposed and assigned as signature address code....
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