Secrecy Transmission of NOMA-OTFS Based Multicast-Unicast Streaming

作     者：Junfan Hu Jia Shi Xianyu Wang Xiaoju Lu Zan Li Zhuangzhuang Tie Quanxue Gao Junfan Hu;Jia Shi;Xianyu Wang;Xiaoju Lu;Zan Li;Zhuangzhuang Tie

作者机构：The State Key Laboratory of Integrated Services NetworksXidian UniversityXi’an 710071China Academy of Space Electronic Information TechnologyXi’an 710100China Unit 69036 of PLAUrumqi 830000China 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2023年第20卷第1期

页      面：1-13页

核心收录：

学科分类：11[军事学] 1105[军事学-军队指挥学] 0839[工学-网络空间安全] 08[工学] 110505[军事学-密码学] 110503[军事学-军事通信学] 

基　　金：supported in part by the National Natural Science Foundation of China(No.61941105,No.61901327 and No.62101450) in part by the National Natural Science Foundation for Distinguished Young Scholar(No.61825104) in part by the Fundamental Research Funds for the Central Universities(JB210109) in part by the Foundation of State Key Laboratory of Integrated Services Networks of Xidian University(ISN22-03) 

主　　题：OTFS NOMA physical layer security multicast-unicast 

摘      要：This paper investigates the security performance of a cooperative multicast-unicast system,where the users present the feature of high ***,we develop the non-orthogonal multiple access(NOMA)based orthogonal time frequency space(OTFS)transmission scheme,namely NOMAOTFS,in order to combat Doppler effect as well as to improve the spectral ***,we propose a power allocation method addressing the trade-off between the reliability of multicast streaming and the confidentiality of unicast *** on that,we utilize the relay selection strategy,to improve the security of unicast *** the context of multicastunicast streaming,our simulation findings validate the effectiveness of the NOMA-OTFS based cooperative transmission,which can significantly outperform the existing NOMA-OFDM in terms of both reliability and security.