公开(公告)号：WO2022146365A1

公开(公告)日：2022-07-07

申请号：PCT/TR2021/051509

申请日：2021-12-26

Applicant: ISTANBUL MEDIPOL UNIVERSITESI

Inventor： ABUSHATTAL, Abdelrahman ,  ARSLAN, Hüseyin

IPC: H04L27/20 ,  H04K1/00 ,  H04B7/0452

Abstract: The present invention proposes a secure scheme that incorporates both internal and external eavesdroppers to secure all users' links in the downlink PD-NOMA. In particular, the proposed scheme implies that the BS induces a phase shift in each user's symbol based on its corresponding instantaneous channel phase. The phase shift of each user is restricted such that the original symbol is moved to the location of another symbol in the constellation diagram. Therefore, as each user is aware of its instantaneous channel phase only, it will be able to recover the actual phase of its corresponding symbol. Thus, the proposed scheme does not only protect the data against eavesdroppers, but it also guarantees confidentiality and privacy against all other users.