A chaos-modulated metasurface for physical-layer secure communications

a chaos modulated meta


A chaos-modulated metasurface for physical-layer secure communications
How the system works: Alice, the sender, transmits a regular wireless signal toward a programmable metasurface. Controlled by a chip (field-programmable gate array, FPGA) using chaos theory, the metasurface creates a unique pattern for each message. It directs the signal clearly to the intended receiver, Bob, while scrambling it in all other directions. As a result, only Bob can decode the message, while others like Eve1, Eve2, and Eve3 receive only noise. This secures the…



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