SCIM: Incorporating secure communication and interference management in one operation

Due to the broadcast nature of wireless communications, users' data transmitted wirelessly is susceptible to se-curity/privacy threats. Meanwhile, as a result of the limitation of spectrum resources, massive wireless connec-tions will incur serious interference, which may damage the efficiency of data transmission. Therefore, improving both efficiency and secrecy of data transmission is of research significance. In this paper, we propose a wireless transmission scheme by taking both Secure Communication (SC) and Interference Management (IM) into account, namely SCIM. With this scheme, an SCIM signal is generated by the legitimate transmitter (Tx) and sent along with the desired signal, so that the SCIM signal can interact with and suppress the environmental interference at the legitimate receiver (Rx). Meanwhile, the SCIM signal may interfere with the eavesdropper in the coverage of legitimate transmission so as to deteriorate the eavesdropping performance. Therefore, the secrecy of desired transmission is improved. In this way, both the transmission efficiency and privacy are enhanced. Then, by taking various transmission preferences into account, we develop different implementations of SCIM, including Inter-ference Suppression First SCIM (ISF-SCIM), Data Transmission First SCIM (DTF-SCIM), Anti-Eavesdropping First SCIM (AEF-SCIM), and Secrecy Rate Maximization SCIM (SRM-SCIM). Our in-depth simulation results have shown the proposed methods to effectively improve the efficiency and secrecy of the legitimate transmission.

Automated summary

Due to the broadcast nature of wireless communications, the security and privacy of users' wireless data transmission are at risk. Additionally, interference caused by limited spectrum resources can greatly decrease the efficiency of data transmission. Therefore, it is important to improve both the efficiency and secrecy of data transmission. This paper introduces a wireless transmission scheme called SCIM, which takes into account both Secure Communication (SC) and Interference Management (IM). By generating an SCIM signal and transmitting it alongside the desired signal, SCIM can suppress environmental interference and deteriorate eavesdropping performance, ultimately enhancing both transmission efficiency and privacy. Various implementations of SCIM are developed based on different transmission preferences, and simulation results show that the proposed methods effectively improve the efficiency and secrecy of legitimate transmission.