SCIM: Incorporating secure communication and interference management in one operation  

作　　者：Zhao Li Pintian Lyu Jun Li Zhixian Chang Jia Liu Zheng Yan 

机构地区：[1]School of Cyber Engineering,Xidian University,Xi'an,710126,China [2]Technol.on Commun.Net.Lab,The 54th Research Inst.of China Elec.Technol.Group Corp,Shijiazhuang,050081,China [3]School of Telecommun.and Inf.Engineering,Xi'an University of Posts&Telecommun,Xi'an,710071,China [4]School of Computer Science and Technology,Xidian University,Xi'an,710126,China [5]The Department of Comnet,Aalto University,Espoo,02150,Finland

出　　处：《Digital Communications and Networks》2023年第2期512-522,共11页数字通信与网络（英文版）

基　　金：supported in part by the Natural Science Foundation of Shaanxi Province under Grant Number 2021JM-143;the Fundamental Research Funds for the Central Universities under Grant Number JB211502;the Project of Key Laboratory of Science and Technology on Communication Network under Grant Number 6142104200412;the National Natural Science Foundation of China under Grant Number 61672410;the Academy of Finland under Grant Number 308087;the China 111 project under Grant Number B16037;JSPS KAKENHI under Grant Number JP20K14742;and the Project of Cyber Security Establishment with Inter University Cooperation.

摘　　要：Due to the broadcast nature of wireless communications,users’data transmitted wirelessly is susceptible to security/privacy threats.Meanwhile,as a result of the limitation of spectrum resources,massive wireless connections 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 Interference 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.

关 键 词：Physical-layer security Secure communication Anti-eavesdropping Interference management Secrecy rate 

分 类 号：TN91[电子电信—通信与信息系统]