Optical heterodyne AND operation as emulation of physical layer security at wireless communication

Abstract

As a physically secured wireless communication method, a novel configuration which deduces ANDed data decoded from heterodyne detection between two wireless data streams was proposed. As a feasibility experiment, the demonstration of a heterodyne AND operation was conducted by devising an optical system to emulate our novel wireless system. Experimental results testified the principle of our proposed physical layer security.

Photonics-Assisted Terahertz-Wave Beam Steering and Its Application in Secured Wireless Communication

“…Beam forming and steering provide wireless communication with a secure physical layer and, in combination with an upper layer algorithm, enhance overall communication security. For a more highly secured connection, we devised a wireless transmission system based on coherent detection between two RF data sequences utilizing beam control [20,21]. As shown in Figure 10, at the system, the data sequence to be sent (original data sequence) is divided into two data sequences (Data 1 and Data 2) by an encrypter so that the result of the AND between Data 1 and Data 2 coincides with the original data sequence.…”