Physical Layer Anonymous Precoding: The Path to Privacy-Preserving Communications

Next-generation systems aim to increase both the speed and responsiveness of wireless communications while supporting compelling applications such as edge-cloud computing, remote health, vehicle-to-infrastructure communications, etc. As these are expected carry confidential personal data, ensuring user privacy becomes a critical issue. In contrast traditional security designs that prevent information from being eavesdropped upon by adversaries, or learned unauthorized parties, in this article we consider mask user's identity during communication, resulting anonymous communications. particular, examine recent interest physical layer (PHY) solutions. This line research departs conventional higher authentication/encryption routing protocols, judiciously manipulates signaling pattern transmitted signals order sender's PHY characteristics. We first discuss concept anonymity at PHY, then illustrate strategy is able unmask analyzing his/her only – is, signalling patterns inherent fading Subsequently, review emerging area precoding preserve high receiver-side signal-to-interference-plus-noise ratio for communication. family represents new approach providing introducing dimension privacy-preserving techniques.