A Noise-Masking Physical Layer Security Technique for MIMO Communications Systems

Milcom 2018 Track 1 - Waveforms and Signal ProcessingWe develop a noise-masking method to increase security in a multiple-input, multiple-output communication system by using known channel state information to calculate a specific masking signal for each block of a space-time block- coded signal. This masking signal is invisible to the intended receiver since it is designed to be canceled by the equalization process. Using mathematical analysis and numerical simulation of the communication system, we found that it is possible to design an effective security system by employing this method