Security enhancement for video transmission via noise aggregation in immersive systems

The interest in the field of immersive audio/visual systems exists for many years from both of the commercialization point of view and the research perspective. Technological advancements in the field of cameras, video display along with the processing hardware lead the way to a new generation of immersive systems. On one hand, advancement in video compression schemes like MPEG and H.264/AVC, and transmission technologies like and 3G and 4G LTE enhanced the feeling of virtual presence. However, on the other hand the secure transmission of immersive audio/visual contents over wireless networks is a challenge, as it suffers from the potential malicious attacks. One type of typical malicious attack is passive eavesdropping. The goal of this paper is to propose a solution to enhance the secure wireless transmissions of Video in Immersive Systems via simple yet effective physical-layer approach. To reduce the chance that that the passive eavesdropper extracts information, we present a physical-layer security method, termed noise aggregation, for the secure video transmission to legitimate receiver. Theoretical analyses and simulation results demonstrate that our method is able to effectively limit the amount of information eavesdropped by the unauthorized user at bit level, and thus significantly enhancing security for video distribution.